Preparation and characterization of SPTA−PVA/CDA−GO/PVDF composite membrane

XU Yue; ZENG Zheng; YUAN Haikuan; LU Jie

doi:10.12299/jsues.22-0132

Volume 36 Issue 4

Dec. 2022

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Article Navigation > Journal of Shanghai University of Engineering Science > 2022 > 36(4): 341-346

XU Yue, ZENG Zheng, YUAN Haikuan, LU Jie. Preparation and characterization of SPTA−PVA/CDA−GO/PVDF composite membrane[J]. Journal of Shanghai University of Engineering Science, 2022, 36(4): 341-346. doi: 10.12299/jsues.22-0132

Citation:

XU Yue, ZENG Zheng, YUAN Haikuan, LU Jie. Preparation and characterization of SPTA−PVA/CDA−GO/PVDF composite membrane[J]. Journal of Shanghai University of Engineering Science, 2022, 36(4): 341-346. doi: 10.12299/jsues.22-0132

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Preparation and characterization of SPTA−PVA/CDA−GO/PVDF composite membrane

doi: 10.12299/jsues.22-0132

School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

Received Date: 2022-05-07
Publish Date: 2022-12-30

Abstract

Abstract

Graphene oxide (GO) was modified by 1,4−cyclohexanediamine (CDA), and polyvinyl alcohol (PVA) was crosslinked by 4−sulfophthalic acid (SPTA). Hydrophilized polyvinylidene fluoride (PVDF) ultrafiltration membrane as support, SPTA−PVA/CDA−GO/PVDF composite membrane was prepared through vacuum filtration and drop coating. The composite membrane was characterized by ATR−FTIR, SEM and contact angle, and the pervaporation desalination performance of composite membrane was tested. The results show that the modification of CDA extended the interlayer spacing of GO nanosheets, thus improving the water permeability of CDA−GO layer, and the crosslinked PVA layer enhanced the surface hydrophilicity and stability of composite membrane, consequently, improved the water absorption and water transport properties of composite membrane. The composite membrane obtained a flux of 15.6 kg/(m²•h) and a rejection of 99.99% when treating with concentration of 3.5% NaCl solution at 70 ℃.
- pervaporation,
- desalination,
- graphene oxide,
- polyvinyl alcohol

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References(16)

References

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