Stretchable and Superhydrophilic Polyaniline/Halloysite Decorated Nanofiber Composite Evaporator for High Efficiency Seawater Desalination

Jiang Han; Wenqian Xing; Jun Yan; Jing Wen; Yuntao Liu; Yuqing Wang; Zefeng Wu; Longcheng Tang; Jiefeng Gao

doi:10.1007/s42765-022-00172-5

Advanced Fiber Materials ›› 2022, Vol. 4 ›› Issue (5) : 1233 -1245. DOI: 10.1007/s42765-022-00172-5

Research Article

Stretchable and Superhydrophilic Polyaniline/Halloysite Decorated Nanofiber Composite Evaporator for High Efficiency Seawater Desalination

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Abstract

Here, authors report on composition of a stretchable, mechanically durable and superhydrophilic polyaniline (PANI)/halloysite nanotubes (HNTs) decorated PU nanofiber (PANI/HNTs@PU). The polymer nanofibers are placed as the core and PANI/HNTs makes the shell section. The PANI/HNTs creates a membrane with outstanding light absorption and photothermal conversion performance. The strong solar absorption capability and superhydrophilicity of the PANI/HNTs@PU remain almost unchanged during stretching, abrasion, and ultrasonic washing tests, exhibiting superior surface stability and durability. When the PANI/HNTs@PU is used for the interfacial evaporation, the evaporation rate and efficiency reach as high as 1.61 kg m^− 2 h^− 1 and 94.7%, respectively. No salt precipitation is observed on the solar absorber surface even under a high salinity or during the long term or cyclic evaporation test. Furthermore, the excellent interfacial evaporation function is maintained when the nanofiber composite is mechanically stretched. The PANI/HNTs@PU based evaporation device shows promising applications in high performance solar desalination.

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Jiang Han, Wenqian Xing, Jun Yan, Jing Wen, Yuntao Liu, Yuqing Wang, Zefeng Wu, Longcheng Tang, Jiefeng Gao. Stretchable and Superhydrophilic Polyaniline/Halloysite Decorated Nanofiber Composite Evaporator for High Efficiency Seawater Desalination. Advanced Fiber Materials, 2022, 4(5): 1233-1245 DOI:10.1007/s42765-022-00172-5

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Funding

Natural Science Foundation of China(51873178)

the Opening Project of State Key Laboratory of Polymer Materials Engineering (Sichuan University)(sklpme2020-4-03)

Qing Lan Project of Yangzhou University and Jiangsu Province(Qing Lan Project of Yangzhou University and Jiangsu Province)

High-end Talent Project of Yangzhou University(High-end Talent Project of Yangzhou University)

the Priority Academic Program Development of Jiangsu Higher Education Institutions(the Priority Academic Program Development of Jiangsu Higher Education Institutions)

Postgraduate Research & Practice Innovation Program of Jiangsu province(KYCX18_2364)

Outstanding Doctoral Dissertation Fund of Yangzhou University(Outstanding Doctoral Dissertation Fund of Yangzhou University)