Recent progress in electrospun nanofibers and their applications in heavy metal wastewater treatment

Abstract

Novel adsorbents with a simple preparation process and large capacity for removing highly toxic and nondegradable heavy metals from water have drawn the attention of researchers. Electrospun nanofiber membranes usually have the advantages of large specific surface areas and high porosity and allowing flexible control and easy functionalization. These membranes show remarkable application potential in the field of heavy metal wastewater treatment. In this paper, the electrospinning technologies, process types, and the structures and types of nanofibers that can be prepared are reviewed, and the relationships among process, structure and properties are discussed. On one hand, based on the different components of electrospun nanofibers, the use of organic, inorganic and organic−inorganic nanofiber membrane adsorbents in heavy metal wastewater treatment are introduced, and their advantages and future development are summarized and prospected. On the other hand, based on the microstructure and overall structure of the nanofiber membrane, the recent progresses of electrospun functional membranes for heavy metal removal are reviewed, and the advantages of different structures for applications are concluded. Overall, this study lays the foundation for future research aiming to provide more novel structured adsorbents.

Key words： electrospinning; heavy metal; adsorption; nanostructure; wastewater

Acknowledgement

This work is financially supported by the Natural Science Foundation of Shanghai (Grant No. 20ZR1439000).

References

1 Malik L A, Bashir A, Qureashi A, Pandith A H. Detection and removal of heavy metal ions: a review. Environmental Chemistry Letters, 2019, 17(4): 1495–1521

2 Chai W S, Cheun J Y, Kumar P S, Mubashir M, Majeed Z, Banat F, Ho S H, Show P L. A review on conventional and novel materials towards heavy metal adsorption in wastewater treatment application. Journal of Cleaner Production, 2021, 296: 126589

3 Wu Y, Pang H, Liu Y, Wang X, Yu S, Fu D, Chen J, Wang X. Environmental remediation of heavy metal ions by novel-nanomaterials: a review. Environmental Pollution, 2019, 246: 608–620

4 Sabzehmeidani M M, Mahnaee S, Ghaedi M, Heidari H, Roy V A L. Carbon based materials: a review of adsorbents for inorganic and organic compounds. Materials Advances, 2021, 2(2): 598–627

5 Chakraborty R, Asthana A, Singh A K, Jain B, Susan A B H. Adsorption of heavy metal ions by various low-cost adsorbents: a review. International Journal of Environmental Analytical Chemistry, 2022, 102(2): 342–379

6 Zhang L, He G, Yu Y, Zhang Y, Li X, Wang S. Design of biocompatible chitosan/polyaniline/laponite hydrogel with photothermal conversion capability. Biomolecules, 2022, 12(8): 1089

7 Zhang Y, Wang B, Cheng Q, Li X, Li Z. Removal of toxic heavy metal ions (Pb, Cr, Cu, Ni, Zn, Co, Hg, and Cd) from waste batteries or lithium cells using nanosized metal oxides: a review. Journal of Nanoscience and Nanotechnology, 2020, 20(12): 7231–7254

8 Makvandi P, Iftekhar S, Pizzetti F, Zarepour A, Zare E N, Ashrafizadeh M, Agarwal T, Padil V V T, Mohammadinejad R, Sillanpaa M, Maiti T K, Perale G, Zarrabi A, Rossi F. Functionalization of polymers and nanomaterials for water treatment, food packaging, textile and biomedical applications: a review. Environmental Chemistry Letters, 2021, 19(1): 583–611

9 Shayegan H, Ali G A M, Safarifard V. Recent progress in the removal of heavy metal ions from water using metal–organic frameworks. ChemistrySelect, 2020, 5(1): 124–146

10 Liu Y N, Lv H, Liu Y, Gao Y M, Kim H Y, Ouyang Y, Yu D G. Progresses on electrospun metal–organic frameworks nanofibers and their wastewater treatment applications. Materials Today. Chemistry, 2022, 25: 123608

11 Wadhawan S, Jain A, Nayyar J, Mehta S K. Role of nanomaterials as adsorbents in heavy metal ion removal from waste water: a review. Journal of Water Process Engineering, 2020, 33: 101038

12 Pereao O, Bode-Aluko C, Laatikainen K, Nechaev A, Petrik L. Morphology, modification and characterisation of electrospun polymer nanofiber adsorbent material used in metal ion removal. Journal of Polymers and the Environment, 2019, 27(9): 1843–1860

13 Feng L, Li S H, Zhai J, Song Y L, Jiang L, Zhu D B. Template based synthesis of aligned polyacrylonitrile nanofibers using a novel extrusion method. Synthetic Metals, 2003, 135(1-3): 817–818

14 Ichimori T, Mizuma K, Uchida T, Yamazaki S, Kimura K. Morphological diversity and nanofiber networks of poly(p-oxybenzoyl) generated by phase separation during copolymerization. Journal of Applied Polymer Science, 2013, 128(2): 1282–1290

15 Hwang W, Kim B H, Dandu R, Cappello J, Ghandehari H, Seog J. Surface induced nanofiber growth by self-assembly of a silk-elastin-like protein polymer. Langmuir, 2009, 25(21): 12682–12686

16 Chen H, Lin J, Zhang N, Chen L, Zhong S, Wang Y, Zhang W, Ling Q. Preparation of MgAl-EDTA-LDH based electrospun nanofiber membrane and its adsorption properties of copper(II) from wastewater. Journal of Hazardous Materials, 2018, 345: 1–9

17 Cui J, Li F, Wang Y, Zhang Q, Ma W, Huang C. Electrospun nanofiber membranes for wastewater treatment applications. Separation and Purification Technology, 2020, 250: 117116

18 Xue J, Wu T, Dai Y, Xia Y. Electrospinning and electrospun nanofibers: methods, materials, and applications. Chemical Reviews, 2019, 119(8): 5298–5415

19 Thenmozhi S, Dharmaraj N, Kadirvelu K, Kim H Y. Electrospun nanofibers: new generation materials for advanced applications. Materials Science and Engineering B, 2017, 217: 36–48

20 Wang C, Wang J, Zeng L, Qiao Z, Liu X, Liu H, Zhang J, Ding J. Fabrication of electrospun polymer nanofibers with diverse morphologies. Molecules, 2019, 24(5): 834

21 Zhang C, Li Y, Wang P, Zhang H. Electrospinning of nanofibers: potentials and perspectives for active food packaging. Comprehensive Reviews in Food Science and Food Safety, 2020, 19(2): 479–502

22 Liu M, Duan X P, Li Y M, Yang D P, Long Y Z. Electrospun nanofibers for wound healing. Materials Science & Engineering. Materials Science and Engineering C, 2017, 76: 1413–1423

23 Li H, Chen X, Lu W, Wang J, Xu Y, Guo Y. Application of electrospinning in antibacterial field. Nanomaterials, 2021, 11(7): 1822

24 Pant B, Park M, Park S J. Drug delivery applications of core-sheath nanofibers prepared by coaxial electrospinning: a review. Pharmaceutics, 2019, 11(7): 305

25 Wu T, Ding M, Shi C, Qiao Y, Wang P, Qiao R, Wang X, Zhong J. Resorbable polymer electrospun nanofibers: history, shapes and application for tissue engineering. Chinese Chemical Letters, 2020, 31(3): 617–625

26 Guo H, Chen Y, Li Y, Zhou W, Xu W, Pang L, Fan X, Jiang S. Electrospun fibrous materials and their applications for electromagnetic interference shielding: a review. Composites Part A: Applied Science and Manufacturing, 2021, 143: 106309

27 Xu L, Liu Y A, Zhou W H, Yu D G. Electrospun medical sutures for wound healing: a review. Polymers, 2022, 14(9): 1637

28 Zhang Y, Song W L, Lu Y M, Xu Y X, Wang C P, Yu D G, Kim I. Recent advances in poly(α-L-glutamic acid)-based nanomaterials for drug delivery. Biomolecules, 2022, 12(5): 636

29 Kang S X, Hou S C, Chen X W, Yu D G, Wang L, Li X Y, Williams R G. Energy-saving electrospinning with a concentric Teflon-core rod spinneret to create medicated nanofibers. Polymers, 2020, 12(10): 2421

30 Zhang X, Guo S, Qin Y, Li C. Functional electrospun nanocomposites for efficient oxygen reduction reaction. Chemical Research in Chinese Universities, 2021, 37(3): 379–393

31 Li X X, He J H. Nanoscale adhesion and attachment oscillation under the geometric potential. Part 1: The formation mechanism of nanofiber membrane in the electrospinning. Results in Physics, 2019, 12: 1405–1410

32 Liu W, Xi G, Yang X, Hao X, Wang M, Feng Y, Chen H, Shi C. Poly(lactide-co-glycolide) grafted hyaluronic acid-based electrospun fibrous hemostatic fragments as a sustainable anti-infection and immunoregulation material. Journal of Materials Chemistry B: Materials for Biology and Medicine, 2019, 7(32): 4997–5010

33 Liu Y, Chen X, Gao Y, Liu Y, Yu D, Liu P. Electrospun core-sheath nanofibers with variable shell thickness for modifying curcumin release to achieve a better antibacterial performance. Biomolecules, 2022, 12(8): 1057

34 Sivan M, Madheswaran D, Valtera J, Kostakova E K, Lukas D. Alternating current electrospinning: the impacts of various high-voltage signal shapes and frequencies on the spinnability and productivity of polycaprolactone nanofibers. Materials & Design, 2022, 213: 110308

35 Ghazalian M, Afshar S, Rostami A, Rashedi S, Bahrami S H. Fabrication and characterization of chitosan-polycaprolactone core–shell nanofibers containing tetracycline hydrochloride. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2022, 636: 128163

36 Zhou Y J, Liu Y A, Zhang M X, Feng Z B, Yu D G, Wang K. Electrospun nanofiber membranes for air filtration: a review. Nanomaterials, 2022, 12(7): 1077

37 Zaarour B, Zhu L, Jin X. Controlling the surface structure, mechanical properties, crystallinity, and piezoelectric properties of electrospun PVDF nanofibers by maneuvering molecular weight. Soft Materials, 2019, 17(2): 181–189

38 Ibrahim H M, Klingner A. A review on electrospun polymeric nanofibers: production parameters and potential applications. Polymer Testing, 2020, 90: 106647

39 Dodero A, Brunengo E, Alloisio M, Sionkowska A, Vicini S, Castellano M. Chitosan-based electrospun membranes: effects of solution viscosity, coagulant and crosslinker. Carbohydrate Polymers, 2020, 235: 115976

40 Chen W, Zhao P, Yang Y, Yu D G. Electrospun beads-on-the-string nanoproducts: preparation and drug delivery application. Current Drug Delivery, 2022, 19

41 Han Y Y, Xia L, Zhuang X P, Liang Y X. Integrating of metal–organic framework UiO-66-NH₂ and cellulose nanofibers mat for high-performance adsorption of dye rose bengal. Frontiers of Chemical Science and Engineering, 2022, 16(9): 1387–1398

42 Topuz F, Satilmis B, Uyar T. Electrospinning of uniform nanofibers of polymers of intrinsic microporosity (PIM-1): the influence of solution conductivity and relative humidity. Polymer, 2019, 178: 121610

43 Steyaert I, Van der Schueren L, Rahier H, de Clerck K. An alternative solvent system for blend electrospinning of polycaprolactone/chitosan nanofibres. Macromolecular Symposia, 2012, 321(1): 71–75

44 Najafi S J, Nosraty H, Shokrieh M M, Gharehaghaji A A, Bahrami S H. The effect of electrospinning parameters on the morphology of glass nanofibers. Journal of the Textile Institute, 2020, 111(7): 941–949

45 Vicente A C B, Medeiros G B, Vieira D D, Garcia F P, Nakamura C V, Muniz E C, Corradini E. Influence of process variables on the yield and diameter of zein-poly(N-isopropylacrylamide) fiber blends obtained by electrospinning. Journal of Molecular Liquids, 2019, 292: 109971

46 Topuz F, Uyar T. Electrospinning of cyclodextrin nanofibers: the effect of process parameters. Journal of Nanomaterials, 2020, 2020: 7529306

47 Huang F, Wei Q, Wang J, Cai Y, Huang Y. Effect of temperature on structure, morphology and crystallinity of PVDF nanofibers via electrospinning. E-Polymers, 2008, 8(1): 152

48 Bachs-Herrera A, Yousefzade O, del Valle L J, Puiggali J. Melt electrospinning of polymers: blends, nanocomposites, additives and applications. Applied Sciences, 2021, 11(4): 1808

49 Arrieta M P, Leones Gil A, Yusef M, Kenny J M, Peponi L. Electrospinning of PCL-based blends: processing optimization for their scalable production. Materials, 2020, 13(17): 3853

50 Zheng Y, Cao H, Zhou Z, Mei X, Yu L, Chen X, He G, Zhao Y, Wu D, Sun D. Concentrated multi-nozzle electrospinning. Fibers and Polymers, 2019, 20(6): 1180–1186

51 Wu C, Zhang H, Hu Q, Ramalingam M. Designing biomimetic triple-layered nanofibrous vascular grafts via combinatorial electrospinning approach. Journal of Nanoscience and Nanotechnology, 2020, 20(10): 6396–6405

52 Yu D G, Wang M L, Ge R. Strategies for sustained drug release from electrospun multi-layer nanostructures. Wiley Interdisciplinary Reviews. Nanomedicine and Nanobiotechnology, 2022, 14(3): e1772

53 Liu Y B, Chen X H, Gao Y H, Yu D G, Liu P. Elaborate design of shell component for manipulating the sustained release behavior from core–shell nanofibres. Journal of Nanobiotechnology, 2022, 20(1): 244

54 He H, Wu M, Zhu J W, Yang Y Y, Ge R L, Yu D G. Engineered spindles of little molecules around electrospun nanofibers for biphasic drug release. Advanced Fiber Materials, 2022, 4(2): 305–317

55 Jiang W, Zhao P, Song W, Wang M, Yu D G. Electrospun zein/polyoxyethylene core-sheath ultrathin fibers and their antibacterial food packaging applications. Biomolecules, 2022, 12(8): 1110

56 Xu H X, Zhang F Y, Wang M L, Lv H, Yu D G, Liu X K, Shen H. Electrospun hierarchical structural films for effective wound healing. Biomaterials Advances, 2022, 212795

57 Wang M L, Hou J S, Yu D G, Li S Y, Zhu J W, Chen Z Z. Electrospun tri-layer nanodepots for sustained release of acyclovir. Journal of Alloys and Compounds, 2020, 846: 156471

58 Xu H, Xu X, Li S, Song W L, Yu D G, Annie Bligh S W. The effect of drug heterogeneous distributions within core-sheath nanostructures on its sustained release profiles. Biomolecules, 2021, 11(9): 1330

59 Ji Y, Song W L, Xu L, Yu D G, Annie-Bligh S W. A review on electrospun poly(amino acid) nano-fibers and their applications of hemostasis and wound healing. Biomolecules, 2022, 12(6): 794

60 Yu D G, Lv H. Preface-striding into nano drug delivery. Current Drug Delivery, 2022, 19(1): 1–3

61 Guo S R, Jiang W L, Shen L F, Zhang G Y, Gao Y M, Yang Y Y, Yu D G. Electrospun hybrid films for fast and convenient delivery of active herb extracts. Membranes, 2022, 12(4): 398

62 Lv H, Guo S R, Zhang G Y, He W L, Wu Y H, Yu D G. Electrospun structural hybrids of acyclovir-polyacrylonitrile at acyclovir for modifying drug release. Polymers, 2021, 13(24): 4286

63 Liu X, Zhang M X, Song W L, Zhang Y, Yu D G, Liu Y. Electrospun core (HPMC-acetaminophen)-shell (PVP-sucralose) nanohybrids for rapid drug delivery. Gels, 2022, 8(6): 357

64 Wang M L, Yu D G, Williams G R, Bligh S W A. Co-loading of inorganic nanoparticles and natural oil in the electrospun Janus nanofibers for a synergetic antibacterial effect. Pharmaceutics, 2022, 14(6): 1208

65 Liu H, Wang H, Lu X, Murugadoss V, Huang M, Yang H, Wan F, Yu D G, Guo Z. Electrospun structural nanohybrids combining three composites for fast helicide delivery. Advanced Composites and Hybrid Materials, 2022, 5(2): 1017–1029

66 Liu H, Jiang W, Yang Z, Chen X, Yu D G, Shao J. Hybrid films prepared from a combination of electrospinning and casting for offering a dual-phase drug release. Polymers, 2022, 14(11): 2132

67 He T S, Yu X D, Bai T J, Li X Y, Fu Y R, Cai K D. Porous carbon nanofibers derived from PAA-PVP electrospun fibers for supercapacitor. Ionics, 2020, 26(8): 4103–4111

68 Xue Y, Guo X, Zhou H, Zhou J. Influence of beads-on-string on Na-ion storage behavior in electrospun carbon nanofibers. Carbon, 2019, 154: 219–229

69 Kim B G, Kang D W, Park G, Park S H, Lee S M, Choi J W. Electrospun Li-confinable hollow carbon fibers for highly stable Li-metal batteries. Chemical Engineering Journal, 2021, 422: 130017

70 Ji X, Li R, Liu G, Jia W, Sun M, Liu Y, Luo Y, Cheng Z. Phase separation-based electrospun Janus nanofibers loaded with Rana chensinensis skin peptides/silver nanoparticles for wound healing. Materials & Design, 2021, 207: 109864

71 Agrawal S, Ranjan R, Lal B, Rahman A, Singh S P, Selvaratnam T, Nawaz T. Synthesis and water treatment applications of nanofibers by electrospinning. Processes, 2021, 9(10): 1779

72 Sahoo S K, Panigrahi G K, Sahoo J K, Pradhan A K, Purohit A K, Dhal J P. Electrospun magnetic polyacrylonitrile-GO hybrid nanofibers for removing Cr(VI) from water. Journal of Molecular Liquids, 2021, 326: 115364

73 Santhosh C, Velmurugan V, Jacob G, Jeong S K, Grace A N, Bhatnagar A. Role of nanomaterials in water treatment applications: a review. Chemical Engineering Journal, 2016, 306: 1116–1137

74 Ma H, Hsiao B S, Chu B. Electrospun nanofibrous membrane for heavy metal ion adsorption. Current Organic Chemistry, 2013, 17(13): 1361–1370

75 Kayan G O, Kayan A. Composite of natural polymers and their adsorbent properties on the dyes and heavy metal ions. Journal of Polymers and the Environment, 2021, 29(11): 3477–3496

76 Ibrahim H, Sazali N, Salleh W N W, Ismail A F. Nanocellulose-based materials and recent application for heavy metal removal. Water, Air, and Soil Pollution, 2021, 232(7): 305

77 Zhou J, Fang Z, Tian Q, Zhao S, Jiang Y. Removal of heavy metal ions by porous sepiolite-based membrane. Micro & Nano Letters, 2020, 15(13): 903–906

78 Li J, Yang Z L, Ding T, Song Y J, Li H C, Li D Q, Chen S, Xu F. The role of surface functional groups of pectin and pectin-based materials on the adsorption of heavy metal ions and dyes. Carbohydrate Polymers, 2022, 276: 118789

79 Lofrano G, Carotenuto M, Libralato G, Domingos R F, Markus A, Dini L, Gautam R K, Baldantoni D, Rossi M, Sharma S K, Chattopadhyaya M C, Giugni M, Meric S. Polymer functionalized nanocomposites for metals removal from water and wastewater: an overview. Water Research, 2016, 92: 22–37

80 Manyangadze M, Chikuruwo N H M, Narsaiah T B, Chakra C S, Radhakumari M, Danha G. Enhancing adsorption capacity of nano-adsorbents via surface modification: a review. South African Journal of Chemical Engineering, 2020, 31: 25–32

81 Nasir A M, Goh P S, Abdullah M S, Ng B C, Ismail A F. Adsorptive nanocomposite membranes for heavy metal remediation: recent progresses and challenges. Chemosphere, 2019, 232: 96–112

82 Li F, Chen C, Wang Y, Li W, Zhou G, Zhang H, Zhang J, Wang J. Activated carbon-hybridized and amine-modified polyacrylonitrile nanofibers toward ultrahigh and recyclable metal ion and dye adsorption from wastewater. Frontiers of Chemical Science and Engineering, 2021, 15(4): 984–997

83 Sun W J, Mao J L, Wang S, Zhang L, Cheng Y H. Review of recent advances of polymer based dielectrics for high-energy storage in electronic power devices from the perspective of target applications. Frontiers of Chemical Science and Engineering, 2021, 15(1): 18–34

84 Choi H Y, Bae J H, Hasegawa Y, An S, Kim I S, Lee H, Kim M. Thiol-functionalized cellulose nanofiber membranes for the effective adsorption of heavy metal ions in water. Carbohydrate Polymers, 2020, 234: 115881

85 Yang D, Li L, Chen B, Shi S, Nie J, Ma G. Functionalized chitosan electrospun nanofiber membranes for heavy-metal removal. Polymer, 2019, 163: 74–85

86 Jawed A, Saxena V, Pandey L M. Engineered nanomaterials and their surface functionalization for the removal of heavy metals: a review. Journal of Water Process Engineering, 2020, 33: 101009

87 Liu J, Shen J H, Wang J J, Liang Y, Wu R T, Zhang W W, Shi D L, Shi S X, Wang Y P, Wang Y M, Xia Y. Polymeric ionic liquid-assisted polymerization for soluble polyaniline nanofibers. Frontiers of Chemical Science and Engineering, 2021, 15(1): 118–126

88 Tian H, Yuan L, Wang J, Wu H, Wang H, Xiang A, Ashok B, Rajulu A V. Electrospinning of polyvinyl alcohol into crosslinked nanofibers: an approach to fabricate functional adsorbent for heavy metals. Journal of Hazardous Materials, 2019, 378: 120751

89 Yang X, Zhou Y, Sun Z, Yang C, Tang D. Synthesis and Cr adsorption of a super-hydrophilic polydopamine-functionalized electrospun polyacrylonitrile. Environmental Chemistry Letters, 2021, 19(1): 743–749

90 Liu B F, Liu Y, Wang Y X, Man H, Wang W X, Chen H, Bai L J. Synthesis and electrospinning of well-defined polymer brushes by modification of polyacrylonitrile. Journal of Polymer Research, 2017, 25(1): 12

91 Li Y, Zhang J, Xu C, Zhou Y F. Crosslinked chitosan nanofiber mats fabricated by one-step electrospinning and ion-imprinting methods for metal ions adsorption. Science China. Chemistry, 2016, 59(1): 95–105

92 Haider S, Park S Y. Preparation of the electrospun chitosan nanofibers and their applications to the adsorption of Cu(II) and Pb(II) ions from an aqueous solution. Journal of Membrane Science, 2009, 328(1-2): 90–96

93 Morillo Martin D, Magdi Ahmed M, Rodriguez M, Garcia M A, Faccini M. Aminated polyethylene terephthalate (PET) nanofibers for the selective removal of Pb(II) from polluted water. Materials, 2017, 10(12): 1352

94 Zheng P L, Shen S Z, Pu Z J, Jia K, Liu X B. Electrospun fluorescent polyarylene ether nitrile nanofibrous mats and application as an adsorbent for Cu²⁺ removal. Fibers and Polymers, 2015, 16(10): 2215–2222

95 Shahram Forouz F, Hosseini Ravandi S A, Allafchian A R. Removal of Ag and Cr heavy metals using nanofiber membranes functionalized with aminopropyltriethoxysilane (APTES). Current Nanoscience, 2016, 12(2): 266–274

96 Hu Y, Wu X Y, He X L, Xing D Y. Phosphorylated polyacrylonitrile-based electrospun nanofibers for removal of heavy metal ions from aqueous solution. Polymers for Advanced Technologies, 2019, 30(3): 545–551

97 Chaúque E F C, Dlamini L N, Adelodun A A, Greyling C J, Catherine Ngila J. Modification of electrospun polyacrylonitrile nanofibers with EDTA for the removal of Cd and Cr ions from water effluents. Applied Surface Science, 2016, 369: 19–28

98 Wang B, Zhang F, Wang J N, Li X Y, Li C J. Amidoxime-modified polyacrylonitrile nanofibers and application to Cr(VI) ions adsorption. Acta Polymerica Sinica, 2016, 8: 1105–1111 (in Chinese)

99 Li C, Ma H, Venkateswaran S, Hsiao B S. Highly efficient and sustainable carboxylated cellulose filters for removal of cationic dyes/heavy metals ions. Chemical Engineering Journal, 2020, 389: 123458

100 Tian Y, Wu M, Liu R G, Li Y X, Wang D Q, Tan J J, Wu R C, Huang Y. Electrospun membrane of cellulose acetate for heavy metal ion adsorption in water treatment. Carbohydrate Polymers, 2011, 83(2): 743–748

101 Wen H F, Yang C, Yu D G, Li X Y, Zhang D F. Electrospun zein nanoribbons for treatment of lead-contained wastewater. Chemical Engineering Journal, 2016, 290: 263–272

102 Bahramzadeh A, Zahedi P, Abdouss M. Acrylamide-plasma treated electrospun polystyrene nanofibrous adsorbents for cadmium and nickel ions removal from aqueous solutions. Journal of Applied Polymer Science, 2016, 133(5): 42944

103 Cai Z, Song X, Zhang Q, Liu Y. Amidoxime surface modification of polyindole nanofiber membrane for effective removal of Cr(VI) from aqueous solution. Journal of Materials Science, 2017, 52(9): 5417–5434

104 Samiey B, Cheng C H, Wu J. Organic–inorganic hybrid polymers as adsorbents for removal of heavy metal ions from solutions: a review. Materials, 2014, 7(2): 673–726

105 Zhao G, Huang X, Tang Z, Huang Q, Niu F, Wang X. Polymer-based nanocomposites for heavy metal ions removal from aqueous solution: a review. Polymer Chemistry, 2018, 9(26): 3562–3582

106 Karim M R, Aijaz M O, Alharth N H, Alharbi H F, Al-Mubaddel F S, Awual M R. Composite nanofibers membranes of poly(vinyl alcohol)/chitosan for selective lead(II) and cadmium(II) ions removal from wastewater. Ecotoxicology and Environmental Safety, 2019, 169: 479–486

107 Park J A, Kang J K, Lee S C, Kim S B. Electrospun poly(acrylic acid)/poly(vinyl alcohol) nanofibrous adsorbents for Cu(II) removal from industrial plating wastewater. RSC Advances, 2017, 7(29): 18075–18084

108 Zhang S J, Shi Q T, Christodoulatos C, Meng X G. Lead and cadmium adsorption by electrospun PVA/PAA nanofibers: batch, spectroscopic, and modeling study. Chemosphere, 2019, 233: 405–413

109 Liu X X, Jiang B Y, Yin X, Ma H Y, Hsiao B S. Highly permeable nanofibrous composite microfiltration membranes for removal of nanoparticles and heavy metal ions. Separation and Purification Technology, 2020, 233: 115976

110 Zhang S J, Shi Q T, Korfiatis G, Christodoulatos C, Wang H J, Meng X G. Chromate removal by electrospun PVA/PEI nanofibers: adsorption, reduction, and effects of co-existing ions. Chemical Engineering Journal, 2020, 387: 124179

111 Feng Q, Wu D S, Zhao Y, Wei A F, Wei Q F, Fong H. Electrospun AOPAN/RC blend nanofiber membrane for efficient removal of heavy metal ions from water. Journal of Hazardous Materials, 2018, 344: 819–828

112 Yan C Q, Liu B, Lu G X, Li Y X, Yang Q B, Song Y. Preparation of AOPAN/PA-66 composite nanofibers and its adsorption of metal ions. Chemical Journal of Chinese Universities, 2016, 37(1): 189–194 (in Chinese)

113 Phan D N, Lee H, Huang B, Mukai Y, Kim I S. Fabrication of electrospun chitosan/cellulose nanofibers having adsorption property with enhanced mechanical property. Cellulose, 2019, 26(3): 1781–1793

114 Surgutskaia N S, Martino A D, Zednik J, Ozaltin K, Lovecká L, Bergerová E D, Kimmer D, Svoboda J, Sedlarik V. Efficient Cu²⁺, Pb²⁺ and Ni²⁺ ion removal from wastewater using electrospun DTPA-modified chitosan/polyethylene oxide nanofibers. Separation and Purification Technology, 2020, 247: 116914

115 Brandes R, Belosinschi D, Brouillette F, Chabot B. A new electrospun chitosan/phosphorylated nanocellulose biosorbent for the removal of cadmium ions from aqueous solutions. Journal of Environmental Chemical Engineering, 2019, 7(6): 103477

116 Chen C, Li F L, Guo Z H, Qu X Y, Wang J T, Zhang J. Preparation and performance of aminated polyacrylonitrile nanofibers for highly efficient copper ion removal. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2019, 568: 334–344

117 Zhou W, He J, Cui S, Gao W. Preparation of electrospun silk fibroin/cellulose acetate blend nanofibers and their applications to heavy metal ions adsorption. Fibers and Polymers, 2011, 12(4): 431–437

118 Mohammed Y A Y A, Ma F, Liu L, Zhang C, Dong H, Wang Q, Xu X, Al-Wahbi A A. Preparation of electrospun polyvinylidene fluoride/amidoximized polyacrylonitrile nanofibers for trace metal ions removal from contaminated water. Journal of Porous Materials, 2021, 28(2): 383–392

119 Zia Q, Tabassum M, Meng J M, Xin Z Y, Gong H, Li J S. Polydopamine-assisted grafting of chitosan on porous poly(L-lactic acid) electrospun membranes for adsorption of heavy metal ions. International Journal of Biological Macromolecules, 2021, 167: 1479–1490

120 Nie G D, Li S K, Lu X F, Wang C. Progress on applications of inorganic nanofibers synthesized by electrospinning technique. Chemical Journal of Chinese Universities, 2013, 34(1): 15–29 (in Chinese)

121 Nayl A E A A, Abd-Elhamid A I, Awwad N S, Abdelgawad M A, Wu J, Mo X, Gomha S M, Aly A A, Bräse S. Review of the recent advances in electrospun nanofibers applications in water purification. Polymers, 2022, 14(8): 1594

122 Li J J, Zhai S C, Wu W B, Xu Z Y. Hydrophobic nanocellulose aerogels with high loading of metal–organic framework particles as floating and reusable oil absorbents. Frontiers of Chemical Science and Engineering, 2021, 15(5): 1158–1168

123 Qiao Z, Shen M, Xiao Y, Zhu M, Mignani S, Majoral J P, Shi X. Organic/inorganic nanohybrids formed using electrospun polymer nanofibers as nanoreactors. Coordination Chemistry Reviews, 2018, 372: 31–51

124 Park S, Kim H R, Bang H, Fujimori K, Kim B S, Kim S H, Kim I S. Fabrication and deodorizing efficiency of nanostructured core-sheath TiO₂ nanofibers. Journal of Applied Polymer Science, 2012, 125(4): 2929–2935

125 Katoch A, Choi S W, Kim H W, Kim S S. Highly sensitive and selective H₂ sensing by ZnO nanofibers and the underlying sensing mechanism. Journal of Hazardous Materials, 2015, 286: 229–235

126 Lee J H, Kim J Y, Kim J H, Kim S S. Enhanced hydrogen detection in ppb-level by electrospun SnO₂-loaded ZnO nanofibers. Sensors, 2019, 19(3): 726

127 Zhao X, Ma X, Zheng P. The preparation of carboxylic-functional carbon-based nanofibers for the removal of cationic pollutants. Chemosphere, 2018, 202: 298–305

128 Inagaki M, Yang Y, Kang F. Carbon nanofibers prepared via electrospinning. Advanced Materials, 2012, 24(19): 2547–2566

129 Mahapatra A, Mishra B G, Hota G. Electrospun Fe₂O₃−Al₂O₃ nanocomposite fibers as efficient adsorbent for removal of heavy metal ions from aqueous solution. Journal of Hazardous Materials, 2013, 258: 116–123

130 Abdullah N, Othman F E C, Yusof N, Matsuura T, Lau W J, Jaafar J, Ismail A F, Salleh W N W, Aziz F. Preparation of nanocomposite activated carbon nanofiber/manganese oxide and its adsorptive performance toward leads(II) from aqueous solution. Journal of Water Process Engineering, 2020, 37: 101430

131 Li S Z, Yue X L, Jing Y M, Bai S S, Dai Z F. Fabrication of zonal thiol-functionalized silica nanofibers for removal of heavy metal ions from wastewater. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2011, 380(1-3): 229–233

132 Vu D, Li X, Li Z Y, Wang C. Phase-structure effects of electrospun TiO₂ nanofiber membranes on As(III) adsorption. Journal of Chemical & Engineering Data, 2013, 58(1): 71–77

133 Xu C H, Yu Z C, Yuan K K, Jin X T, Shi S Y, Wang X Q, Zhu L Y, Zhang G H, Xu D, Jiang H. Improved preparation of electrospun MgO ceramic fibers with mesoporous structure and the adsorption properties for lead and cadmium. Ceramics International, 2019, 45(3): 3743–3753

134 Mahapatra A, Mishra B G, Hota G. Studies on electrospun alumina nanofibers for the removal of chromium(VI) and fluoride toxic ions from an aqueous system. Industrial & Engineering Chemistry Research, 2013, 52(4): 1554–1561

135 Zhou Y Y, Li S, Wang D L, Han X. Electrospinning synthesis of hydroxyapatite nanofibers assembled from nanorods and their adsorption for heavy metal ions. Polish Journal of Environmental Studies, 2019, 28(2): 981–988

136 Nordin N A, Abdul Rahman N, Abdullah A H. Effective removal of Pb(II) ions by electrospun PAN/sago lignin-based activated carbon nanofibers. Molecules, 2020, 25(13): 3081

137 Xu C H, Shi S Y, Wang X Q, Zhou H F, Wang L, Zhu L Y, Zhang G H, Xu D. Electrospun SiO₂−MgO hybrid fibers for heavy metal removal: characterization and adsorption study of Pb(II) and Cu(II). Journal of Hazardous Materials, 2020, 381: 120974

138 Wang Y, Wang B, Wang Q, Di J, Miao S, Yu J. Amino-functionalized porous nanofibrous membranes for simultaneous removal of oil and heavy-metal ions from wastewater. ACS Applied Materials & Interfaces, 2019, 11(1): 1672–1679

139 Ibupoto A S, Qureshi U A, Arain M, Ahmed F, Khatri Z, Brohi R Z, Kim I S, Ibupoto Z. ZnO/carbon nanofibers for efficient adsorption of lead from aqueous solutions. Environmental Technology, 2020, 41(21): 2731–2741

140 Khosravi M, Maddah A S, Mehrdadi N, Bidhendi G N, Baghdadi M. Synthesis of TiO₂/ZnO electrospun nanofibers coated-sewage sludge carbon for adsorption of Ni(II), Cu(II), and COD from aqueous solutions and industrial wastewaters. Journal of Dispersion Science and Technology, 2021, 42(6): 802–812

141 Zhang W, Xu B R, Gong C H, Yi C W, Zhang S. Antibacterial and anti-flaming PA6 composite with metathetically prepared nano AgCl@BaSO₄ co-precipitates. Frontiers of Chemical Science and Engineering, 2021, 15(2): 340–350

142 Liao Y, Loh C H, Tian M, Wang R, Fane A G. Progress in electrospun polymeric nanofibrous membranes for water treatment: fabrication, modification and applications. Progress in Polymer Science, 2018, 77: 69–94

143 Wu S L, Liu F, Yang H C, Darling S B. Recent progress in molecular engineering to tailor organic-inorganic interfaces in composite membranes. Molecular Systems Design & Engineering, 2020, 5(2): 433–444

144 Jia Z, Cheng X, Guo Y, Tu L. In-situ preparation of iron(III) hexacyanoferrate nano-layer on polyacrylonitrile membranes for cesium adsorption from aqueous solutions. Chemical Engineering Journal, 2017, 325: 513–520

145 Yang G, Yan W, Wang J, Yang H. Fabrication and characterization of CoTiO₃ nanofibers by sol–gel assisted electrospinning. Materials Letters, 2014, 122: 117–120

146 Dou Y, Zhang W, Kaiser A. Electrospinning of metal–organic frameworks for energy and environmental applications. Advanced Science, 2020, 7(3): 1902590

147 Zhao R, Li X, Li Y, Li Y, Sun B, Zhang N, Chao S, Wang C. Functionalized magnetic iron oxide/polyacrylonitrile composite electrospun fibers as effective chromium(VI) adsorbents for water purification. Journal of Colloid and Interface Science, 2017, 505: 1018–1030

148 Uddin Z, Ahmad F, Ullan T, Nawab Y, Ahmad S, Azam F, Rasheed A, Zafar M S. Recent trends in water purification using electrospun nanofibrous membranes. International Journal of Environmental Science and Technology, 2022, 19(9): 9149–9176

149 Razzaz A, Ghorban S, Hosayni L, Irani M, Aliabadi M. Chitosan nanofibers functionalized by TiO₂ nanoparticles for the removal of heavy metal ions. Journal of the Taiwan Institute of Chemical Engineers, 2016, 58: 333–343

150 Hadi Najafabadi H, Irani M, Roshanfekr Rad L, Heydari Haratameh A, Haririan I. Removal of Cu²⁺, Pb²⁺ and Cr⁶⁺ from aqueous solutions using a chitosan/graphene oxide composite nanofibrous adsorbent. RSC Advances, 2015, 5(21): 16532–16539

151 Aliabadi M, Irani M, Ismaeili J, Najafzadeh S. Design and evaluation of chitosan/hydroxyapatite composite nanofiber membrane for the removal of heavy metal ions from aqueous solution. Journal of the Taiwan Institute of Chemical Engineers, 2014, 45(2): 518–526

152 Cai J, Lei M, Zhang Q, He J R, Chen T, Liu S, Fu S H, Li T T, Liu G, Fei P. Electrospun composite nanofiber mats of cellulose@organically modified montmorillonite for heavy metal ion removal: design, characterization, evaluation of absorption performance. Composites Part A: Applied Science and Manufacturing, 2017, 92: 10–16

153 Hamad A A, Hassouna M S, Shalaby T I, Elkady M F, Abd Elkawi M A, Hamad H A. Electrospun cellulose acetate nanofiber incorporated with hydroxyapatite for removal of heavy metals. International Journal of Biological Macromolecules, 2020, 151: 1299–1313

154 Zhou S L, Liu F, Zhang Q, Chen B Y, Lin C J, Chang C T. Preparation of polyacrylonitrile/ferrous chloride composite nanofibers by electrospinning for efficient reduction of Cr(VI). Journal of Nanoscience and Nanotechnology, 2015, 15(8): 5823–5832

155 Deng S, Liu X H, Liao J B, Lin H, Liu F. PEI modified multiwalled carbon nanotube as a novel additive in PAN nanofiber membrane for enhanced removal of heavy metal ions. Chemical Engineering Journal, 2019, 375: 122086

156 Peng L C, Zhang X L, Sun Y X, Xing Y, Li C J. Heavy metal elimination based on metal organic framework highly loaded on flexible nanofibers. Environmental Research, 2020, 188: 109742

157 Haddad M Y, Alharbi H F. Enhancement of heavy metal ion adsorption using electrospun polyacrylonitrile nanofibers loaded with ZnO nanoparticles. Journal of Applied Polymer Science, 2019, 136(11): 47209

158 Xu X Z, Zhang M X, Lv H, Zhou Y J, Yang Y Y, Yu D G. Electrospun polyacrylonitrile-based lace nanostructures and their Cu(II) adsorption. Separation and Purification Technology, 2022, 288: 120643

159 Sun B, Li X, Zhao R, Yin M, Wang Z, Jiang Z, Wang C. Hierarchical aminated PAN/γ-AlOOH electrospun composite nanofibers and their heavy metal ion adsorption performance. Journal of the Taiwan Institute of Chemical Engineers, 2016, 62: 219–227

160 Makaremi M, Lim C X, Pasbakhsh P, Lee S M, Goh K L, Chang H, Chan E S. Electrospun functionalized polyacrylonitrile-chitosan Bi-layer membranes for water filtration applications. RSC Advances, 2016, 6(59): 53882–53893

161 Wu S, Li F, Wang H, Fu L, Zhang B, Li G. Effects of poly(vinyl alcohol) (PVA) content on preparation of novel thiol-functionalized mesoporous PVA/SiO₂ composite nanofiber membranes and their application for adsorption of heavy metal ions from aqueous solution. Polymer, 2010, 51(26): 6203–6211

162 Rad L R, Momeni A, Ghazani B F, Irani M, Mahmoudi M, Noghreh B. Removal of Ni²⁺ and Cd²⁺ ions from aqueous solutions using electrospun PVA/zeolite nanofibrous adsorbent. Chemical Engineering Journal, 2014, 256: 119–127

163 Alipour D, Keshtkar A R, Moosavian M A. Adsorption of thorium(IV) from simulated radioactive solutions using a novel electrospun PVA/TiO₂/ZnO nanofiber adsorbent functionalized with mercapto groups: study in single and multi-component systems. Applied Surface Science, 2016, 366: 19–29

164 Roque-Ruiz J H, Cabrera-Ontiveros E A, Torres-Pérez J, Reyes-López S Y. Preparation of PCL/Clay and PVA/Clay electrospun fibers for cadmium (Cd²⁺), chromium (Cr³⁺), copper (Cu²⁺) and lead (Pb²⁺) removal from Water. Water, Air, and Soil Pollution, 2016, 227(8): 286

165 Jia B B, Wang J N, Wu J, Li C J. “Flower-Like” PA6@Mg(OH)₂ electrospun nanofibers with Cr(VI)-removal capacity. Chemical Engineering Journal, 2014, 254: 98–105

166 Irandoost M, Pezeshki-Modaress M, Javanbakht V. Removal of lead from aqueous solution with nanofibrous nanocomposite of polycaprolactone adsorbent modified by nanoclay and nanozeolite. Journal of Water Process Engineering, 2019, 32: 100981

167 Shariful M I, Sepehr T, Mehrali M, Ang B C, Amalina M A. Adsorption capability of heavy metals by chitosan/poly(ethylene oxide)/activated carbon electrospun nanofibrous membrane. Journal of Applied Polymer Science, 2018, 135(7): 45851

168 Habiba U, Afifi A M, Salleh A, Ang B C. Chitosan/(polyvinyl alcohol)/zeolite electrospun composite nanofibrous membrane for adsorption of Cr⁶⁺, Fe³⁺ and Ni²⁺. Journal of Hazardous Materials, 2017, 322: 182–194

169 Kim J, Kang T, Kim H, Shin H J, Oh S G. Preparation of PVA/PAA nanofibers containing thiol-modified silica particles by electrospinning as an eco-friendly Cu(II) adsorbent. Journal of Industrial and Engineering Chemistry, 2019, 77: 273–279

170 Esfahani A R, Zhang Z Y, Sip Y Y L, Zhai L, Sadmani A. Removal of heavy metals from water using electrospun polyelectrolyte complex fiber mats. Journal of Water Process Engineering, 2020, 37: 101438

171 Yari S, Abbasizadeh S, Mousavi S E, Moghaddam M S, Moghaddam A Z. Adsorption of Pb(II) and Cu(II) ions from aqueous solution by an electrospun CeO₂ nanofiber adsorbent functionalized with mercapto groups. Process Safety and Environmental Protection, 2015, 94: 159–171

172 Lee C H, Chiang C L, Liu S J. Electrospun nanofibrous rhodanine/polymethylmethacrylate membranes for the removal of heavy metal ions. Separation and Purification Technology, 2013, 118: 737–743

173 Fang Y C, Liu X H, Wu X, Tao X C, Fei W Q. Electrospun polyurethane/phytic acid nanofibrous membrane for high efficient removal of heavy metal ions. Environmental Technology, 2021, 42(7): 1053–1060

174 Pan L H, Wang Z Q, Zhao X Q, He H Y. Efficient removal of lead and copper ions from water by enhanced strength-toughness alginate composite fibers. International Journal of Biological Macromolecules, 2019, 134: 223–229

175 Huang C, Thomas N L. Fabrication of porous fibers via electrospinning: strategies and applications. Polymer Reviews, 2020, 60(4): 595–647

176 Chen P Y, Tung S H. One-step electrospinning to produce nonsolvent-induced macroporous fibers with ultrahigh oil adsorption capability. Macromolecules, 2017, 50(6): 2528–2534

177 Ren Q, Shi Z, Yan L, Zhang F, Fan L, Zhang L, Lv W. High-performance sodium-ion storage: multi-channel carbon nanofiber freestanding anode contrived via ingenious solvent-induced phase separation. Journal of Materials Chemistry A: Materials for Energy and Sustainability, 2020, 8(38): 19898–19907

178 Kang P H, Gohs U, Richter M, Wolz D S J, Richter B, Cherif C, Böhm R, Jäger H. Fabrication and characterization of titanium dioxide nanoparticle filled polyacrylonitrile fiber for photocatalytic application by wet spinning. Fibers and Polymers, 2021, 22(11): 2995–3002

179 Zhang W, Chai H, Diao G. Highly porous cyclodextrin functionalized nanofibrous membrane by acid etching. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2019, 582: 123907

180 Mokhtari-Shourijeh Z, Montazerghaem L, Olya M E. Preparation of porous nanofibers from electrospun polyacrylonitrile/polyvinylidene fluoride composite nanofibers by inexpensive salt using for dye adsorption. Journal of Polymers and the Environment, 2018, 26(9): 3550–3563

181 Mei L, Wang X, Liu Y, Wang J. Computer simulation of PAN/PVP blends compatibility and preparation of aligned PAN porous nanofibers via magnetic-field-assisted electrospinning PAN/PVP blends. Medziagotyra, 2019, 25(1): 54–59

182 Hong G, Li X, Shen L, Wang M, Wang C, Yu X, Wang X. High recovery of lead ions from aminated polyacrylonitrile nanofibrous affinity membranes with micro/nano structure. Journal of Hazardous Materials, 2015, 295: 161–169

183 Wang Y, Cheng T, Xu L. Preparation, characterization, and adsorption application of poly(lactic acid)/tea polyphenols porous composite nanofiber membranes. Journal of the Textile Institute, 2019, 110(12): 1760–1766

184 Ning T B, Zhou Y J, Xu H X, Guo S R, Wang K, Yu D G. Orodispersible membranes from a modified coaxial electrospinning for fast dissolution of diclofenac sodium. Membranes, 2021, 11(11): 802

185 Liu Y B, Chen X H, Yu D G, Liu H, Liu Y Y, Liu P. Electrospun PVP-core/PHBV-shell fibers to eliminate tailing off for an improved sustained release of curcumin. Molecular Pharmaceutics, 2021, 18(11): 4170–4178

186 Ma L, Shi X J, Zhang X X, Dong S J, Li L L. Electrospun cellulose acetate-polycaprolactone/chitosan core–shell nanofibers for the removal of Cr(VI). Physica Status Solidi A: Applications and Materials Science, 2019, 216(22): 1900379

187 Assaifan A K, Aijaz M O, Luqman M, Drmosh Q A, Karim M R, Alharbi H F. Removal of cadmium ions from water using coaxially electrospun PAN/ZnO-encapsulated PVDF nanofiber membranes. Polymer Bulletin, 2022, 79(5): 2831–2850

188 Almasian A, Giahi M, Fard G C, Dehdast S A, Maleknia L. Removal of heavy metal ions by modified PAN/PANI-nylon core–shell nanofibers membrane: filtration performance, antifouling and regeneration behavior. Chemical Engineering Journal, 2018, 351: 1166–1178

189 Yarandpour M R, Rashidi A, Khajavi R, Eslahi N, Yazdanshenas M E. Mesoporous PAA/dextran-polyaniline core–shell nanofibers: optimization of producing conditions, characterization and heavy metal adsorptions. Journal of the Taiwan Institute of Chemical Engineers, 2018, 93: 566–581

190 Li X, Zhao R, Sun B L, Lu X F, Zhang C C, Wang Z J, Wang C. Fabrication of alpha-Fe₂O₃-gamma-Al₂O₃ core–shell nanofibers and their Cr(VI) adsorptive properties. RSC Advances, 2014, 4(80): 42376–42382

191 Zhang Y, Li S, Xu Y, Shi X, Zhang M, Huang Y, Liang Y, Chen Y, Ji W, Kim J R, Song W, Yu D G, Kim I. Engineering of hollow polymeric nanosphere-supported imidazolium-based ionic liquids with enhanced antimicrobial activities. Nano Research, 2022, 15(6): 5556–5568

192 Ma L, Ma S Y, Shen X F, Wang T T, Jiang X H, Chen Q, Qiang Z, Yang H M, Chen H. PrFeO₃ hollow nanofibers as a highly efficient gas sensor for acetone detection. Sensors and Actuators B: Chemical, 2018, 255: 2546–2554

193 Pakravan M, Heuzey M C, Ajji A. Core–shell structured PEO-chitosan nanofibers by coaxial electrospinning. Biomacromolecules, 2012, 13(2): 412–421

194 Li W Y, Li Y Z, Liu J D, Chao S, Yang T Y, Li L J, Wang C, Li X. A novel hollow carbon@MnO₂ electrospun nanofiber adsorbent for efficient removal of Pb²⁺ in wastewater. Chemical Research in Chinese Universities, 2021, 37(3): 496–504

195 Zhao J, Lu Z, He X, Zhang X, Li Q, Xia T, Zhang W, Lu C, Deng Y. One-step fabrication of Fe(OH)₃@cellulose hollow nanofibers with superior capability for water purification. ACS Applied Materials & Interfaces, 2017, 9(30): 25339–25349

196 Koushkbaghi S, Zakialamdari A, Pishnamazi M, Ramandi H F, Aliabadi M, Irani M. Aminated-Fe₃O₄ nanoparticles filled chitosan/PVA/PES dual layers nanofibrous membrane for the removal of Cr(VI) and Pb(II) ions from aqueous solutions in adsorption and membrane processes. Chemical Engineering Journal, 2018, 337: 169–182

197 Huang S H, Hsu C J, Liaw D J, Hu C C, Lee K R, Lai J Y. Effect of chemical structures of amines on physicochemical properties of active layers and dehydration of isopropanol through interfacially polymerized thin-film composite membranes. Journal of Membrane Science, 2008, 307(1): 73–81

198 Wu Y, Qiu X, Cao S, Chen J, Shi X, Du Y, Deng H. Adsorption of natural composite sandwich-like nanofibrous mats for heavy metals in aquatic environment. Journal of Colloid and Interface Science, 2019, 539: 533–544

199 Efome J E, Rana D, Matsuura T, Lan C Q. Metal–organic frameworks supported on nanofibers to remove heavy metals. Journal of Materials Chemistry A: Materials for Energy and Sustainability, 2018, 6(10): 4550–4555

200 Efome J E, Rana D, Matsuura T, Lan C Q. Insight studies on metal–organic framework nanofibrous membrane adsorption and activation for heavy metal ions removal from aqueous solution. ACS Applied Materials & Interfaces, 2018, 10(22): 18619–18629

201 Lv H, Zhang M, Wang P, Xu X, Liu Y, Yu D G. Ingenious construction of Ni(DMG)₂/TiO₂-decorated porous nanofibers for the highly efficient photodegradation of pollutants in water. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2022, 650: 129561

202 Huang C, Dong J, Zhang Y, Chai S, Wang X, Kang S, Yu D, Wang P, Jiang Q. Gold nanoparticles-loaded polyvinylpyrrolidone/ethylcellulose coaxial electrospun nanofibers with enhanced osteogenic capability for bone tissue regeneration. Materials & Design, 2021, 212: 110240

203 Zhao K, Lu Z H, Zhao P, Kang S X, Yang Y Y, Yu D G. Modified tri-axial electrospun functional core–shell nanofibrous membranes for natural photodegradation of antibiotics. Chemical Engineering Journal, 2021, 425: 131455

204 Huang Y P, Miao Y E, Liu T X. Electrospun fibrous membranes for efficient heavy metal removal. Journal of Applied Polymer Science, 2014, 131(9): 40864

205 Zhu F, Zheng Y M, Zhang B G, Dai Y R. A critical review on the electrospun nanofibrous membranes for the adsorption of heavy metals in water treatment. Journal of Hazardous Materials, 2021, 401: 123608

206 Efome J E, Rana D, Matsuura T, Yang F, Con Y, Lan C Q. Triple-layered nanofibrous metal–organic framework-based membranes for desalination by direct contact membrane distillation. ACS Sustainable Chemistry & Engineering, 2020, 8(17): 6601–6610

207 Efome J E, Rana D, Matsuura T, Lan C Q. Effects of operating parameters and coexisting ions on the efficiency of heavy metal ions removal by nano-fibrous metal–organic framework membrane filtration process. Science of the Total Environment, 2019, 674: 355–362

208 Efome J E, Rana D, Matsuura T, Lan C Q. Experiment and modeling for flux and permeate concentration of heavy metal ion in adsorptive membrane filtration using a metal−organic framework incorporated nanofibrous membrane. Chemical Engineering Journal, 2018, 352: 737–744

209 Phan D N, Khan M Q, Nguyen N T, Phan T T, Ullah A, Khatri M, Kien N N, Kim I S. A review on the fabrication of several carbohydrate polymers into nanofibrous structures using electrospinning for removal of metal ions and dyes. Carbohydrate Polymers, 2021, 252: 117175

210 Chamani H, Woloszyn J, Matsuura T, Rana D, Lan C Q. Pore wetting in membrane distillation: a comprehensive review. Progress in Materials Science, 2021, 122: 100843