Three-dimensional graphitic carbon sphere foams as sorbents for cleaning oil spills

Abstract

Frequent offshore oil spill accidents, industrial oily sewage, and the indiscriminate disposal of urban oily sewage have caused serious impacts on the human living environment and health. The traditional oil-water separation methods not only cause easily environmental secondary pollution but also a waste of limited resources. Therefore, in this work, three-dimensional (3D) graphitic carbon sphere (GCS) foams (collectively referred hereafter as 3D foams) with a 3D porous structure, pore size distribution of 25–200 µm, and high porosity of 62vol% were prepared for oil adsorption via gel casting using GCS as the starting materials. The results indicate that the water contact angle (WCA) of the as-prepared 3D foams is 130°. The contents of GCS greatly influenced the hydrophobicity, WCA, and microstructure of the as-prepared samples. The adsorption capacities of the as-prepared 3D foams for paraffin oil, vegetable oil, and vacuum pump oil were approximately 12–15 g/g, which were 10 times that of GCS powder. The as-prepared foams are desirable characteristics of a good sorbent and could be widely used in oil spill accidents.

Keywords

graphitic carbon spheres / three dimensional / foams / gel casting / oil adsorption

References

[1] Zhu HT, Qiu SS, Jiang W, Wu DX, Zhang CY. Evaluation of electrospun polyvinyl chloride/polystyrene fibers as sorbent materials for oil spill cleanup. Environ. Sci. Technol., 2011, 45(10): 4527.

[2] Cheng YC, Li XF, Xu Q, Garcia-Pineda O, Andersen OB, Pichel WG. SAR observation and model tracking of an oil spill event in coastal waters. Mar. Pollut. Bull., 2011, 62(2): 350.

[3] Songsaeng S, Thamyongkit P, Poompradub S. Natural rubber/reduced-graphene oxide composite materials: Morphological and oil adsorption properties for treatment of oil spills. J. Adv. Res., 2019, 20, 79.

[4] Busto M, Tarifa EE, Vera CR. Extraction/adsorption as applied to the dearomatization of white mineral oil. Chem. Eng. Res. Des., 2019, 146, 239.

[5] L. van Gelderen and G. Jomaas, Experimental procedure for laboratory studies of in situ burning: Flammability and burning efficiency of crude oil, J. Vis. Exp., 135(2018).

[6] Chieng HJ, Chong MF. Boron adsorption on palm oil mill boiler (POMB) ash impregnated with chemical compounds. Ind. Eng. Chem. Res., 2013, 52(41): 14658.

[7] Alexandre VMF, do Nascimento FV, Cammarota MC. Ammonia stripping, activated carbon adsorption and anaerobic biological oxidation as process combination for the treatment of oil shale wastewater. Environ. Technol., 2016, 37(20): 2608.

[8] Ullah S, Hussain S, Ahmad W, Khan H, Khan KI, Khan SU, Khan S. Desulfurization of model oil through adsorption over activated charcoal and bentonite clay composites. Chem. Eng. Technol., 2020, 43(3): 564.

[9] Zhang L, Li HQ, Lai XJ, Su XJ, Liang T, Zeng XR. Thiolated graphene-based superhydrophobic sponges for oil-water separation. Chem. Eng. J., 2017, 316, 736.

[10] Zhu Q, Pan QM, Liu FT. Facile removal and collection of oils from water surfaces through superhydrophobic and superoleophilic sponges. J. Phys. Chem. C, 2011, 115(35): 17464.

[11] N. Jiang, R. Shang, S.G.J. Heijman, and L.C. Rietveld, Adsorption of triclosan, trichlorophenol and phenol by high-silica zeolites: Adsorption efficiencies and mechanisms, Sep. Purif. Technol., 235(2020), art. No. 116152.

[12] Li RP, Lin CY, Liu XT. Adsorption of tungstate on kaolinite: Adsorption models and kinetics. RSC Adv., 2016, 6(24): 19872.

[13] Zhao Y, Liu F, Qin XP. Adsorption of diclofenac onto goethite: Adsorption kinetics and effects of pH. Chemosphere, 2017, 180, 373.

[14] Ahmed S, Ramli A, Yusup S, Farooq M. Adsorption behavior of tetraethylenepentamine-functionalized Si-MCM-41 for CO₂ adsorption. Chem. Eng. Res. Des., 2017, 122, 33.

[15] Wang HY, Wang EQ, Liu ZJ, Gao D, Yuan RX, Sun LY, Zhu YJ. A novel carbon nanotubes reinforced super-hydrophobic and superoleophilic polyurethane sponge for selective oil-water separation through a chemical fabrication. J. Mater. Chem. A, 2015, 3(1): 266.

[16] D. Tian, R.Y. Chen, J. Xu, Y.W. Li, and X.H. Bu, A three-dimensional metal-organic framework for selective sensing of nitroaromatic compounds, APL Mater., 2(2014), No. 12, art. No. 124111.

[17] Wang JT, Zheng YA. Oil/water mixtures and emulsions separation of stearic acid-functionalized sponge fabricated via a facile one-step coating method. Sep. Purif. Technol., 2017, 181, 183.

[18] Chen XM, Weibel JA, Garimella SV. Continuous oil-water separation using polydimethylsiloxane-functionalized melamine sponge. Ind. Eng. Chem. Res., 2016, 55(12): 3596.

[19] Nikkhah AA, Zilouei H, Asadinezhad A, Keshavarz A. Removal of oil from water using polyurethane foam modified with nanoclay. Chem. Eng. J., 2015, 262, 278.

[20] E.V. Gorb, P. Hofmann, A.E. Filippov, and S.N. Gorb, Oil adsorption ability of three-dimensional epicuticular wax coverages in plants, Sci. Rep., 7(2017), No. 1, art. No. 45483.

[21] Feng Y, Yao JF. Design of melamine sponge-based three-dimensional porous materials toward applications. Ind. Eng. Chem. Res., 2018, 57(22): 7322.

[22] Wang QH, Li YW, Jin SL, Sang SB, Xu YB, Xu XF, Wang GH. Enhanced mechanical properties of Al₂O₃−C refractories with silicon hybridized expanded graphite. Mater. Sci. Eng. A, 2018, 709, 160.

[23] Q. Gu, T. Ma, F. Zhao, Q.L. Jia, X.H. Liu, G.Q. Liu, and H.X. Li, Enhancement of the thermal shock resistance of MgO−C slide plate materials with the addition of nano-ZrO₂ modified magnesia aggregates, J. Alloys Compd., 847(2020), art. No. 156339.

[24] Ding DH, Lv L, Xiao GQ, Luo JY, Lei CK, Ren Y, Yang SL, Yang P, Hou X. Improved properties of low-carbon MgO−C refractories with the addition of multilayer graphene/MgAl₂O₄ composite powders. Int. J. Appl. Ceram. Technol., 2020, 17(2): 645.

[25] M.Q. Liu, J.T. Huang, Q.M. Xiong, S.Q. Wang, Z. Chen, X.B. Li, Q.W. Liu, and S.W. Zhang, Micro-nano carbon structures with platelet, glassy and tube-like morphologies, Nanomaterials, 9(2019), No. 9, art. No. 1242.

[26] Wang X, Chen Y, Yu C, Ding J, Guo D, Deng CJ, Zhu HX. Preparation and application of ZrC-coated flake graphite for Al₂O₃−C refractories. J. Alloys Compd., 2019, 788, 739.

[27] Gu Q, Zhao F, Liu XH, Jia QL. Preparation and thermal shock behavior of nanoscale MgAl₂O₄ spinel-toughened MgO-based refractory aggregates. Ceram. Int., 2019, 45(9): 12093.

[28] M.F. Elkady, Equilibrium and kinetics behavior of oil spill process onto synthesized nano-activated carbon, Am. J. Appl. Chem., 3(2015), No. 3, art. No. 22.

[29] Yao T, Zhang YG, Xiao YP, Zhao PC, Guo L, Yang HW, Li FB. The effect of environmental factors on the adsorption of lubricating oil onto expanded graphite. J. Mol. Liq., 2016, 218, 611.

[30] Wiśniewski M, Gauden PA, Terzyk AP, Kowalczyk P, Pacholczyk A, Furmaniak S. Detecting adsorption space in carbon nanotubes by benzene uptake. J. Colloid Interface Sci., 2013, 391, 74.

[31] Li SS, Liu JH, Wang JK, Han L, Zhang HJ, Zhang SW. Catalytic preparation of graphitic carbon spheres for Al₂O₃−SiC−C castables. Ceram. Int., 2018, 44(11): 12940.

[32] Li SS, Liu JH, Wang JK, Zhu Q, Zhao XW, Zhang HJ, Zhang SW. Fabrication of graphitic carbon spheres and their application in Al₂O₃−SiC−C refractory castables. Int. J. Appl. Ceram. Technol., 2018, 15(5): 1166.

[33] S.S. Li, F.L. Li, J.K. Wang, L. Tian, H.J. Zhang, and S.W. Zhang, Preparation of hierarchically porous graphitic carbon spheres and their applications in supercapacitors and dye adsorption, Nanomaterials, 8(2018), No. 8, art. No. 625.

[34] Kozbial A, Trouba C, Liu HT, Li L. Characterization of the intrinsic water wettability of graphite using contact angle measurements: Effect of defects on static and dynamic contact angles. Langmuir, 2017, 33(4): 959.