Preparation and antifouling property of sulfonated graphene oxide/ polysulfone composite membrane

被引：0
|
作者：
Zhu Z. [1 ,2 ]
Bai C. [1 ]
Wang L. [1 ]
Meng X. [1 ]
机构：
[1] Key Laboratory of Membrane Separation of Shaanxi Province, School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an
[2] Province Key Laboratory of Sustained Utilization and Development of Water Resources, School of Water Resources and Environment, Hebei GEO University, Shijiazhuang
来源：
Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica | 2019年 / 36卷 / 11期
关键词：
Antifouling; Composite membrane; Graphene oxide; Polysulfone; Sulfonated;
D O I：
10.13801/j.cnki.fhclxb.20190401.003
中图分类号：
学科分类号：
摘要：
The sulfonated graphene oxide/polysulfone (SGO/PSf) composite membranes were prepared by immersion precipitation-phase inversion method. The hydrophilicity, water flux, porosity, surface Zeta potential, membrane cross section and surface morphology of SGO/PSf composite membranes were measured in detail. In order to analysis the antifouling of membranes, the adhesion forces between SGO/PSf composite membranes and bovine serum albumin (BSA) were measured by atomic force microscopy (AFM) with self-made BSA probes. The experimental results show that the SGO/PSf composite membrane with 0.50wt% SGO has the largest surface free energy (114.47 mJ/m2) and the best hydrophilicity, due to the synergistic effect of SGO and polyvinylpyrrolidone (PVP). The rejection rate of SGO/PSf composite membrane to BSA is 97.5%, and the fouling recovery rate is 80.06%. The adhesion force between BSA and membrane is the least (-0.61 mN/m), which illustrates that the antifouling ability of the SGO/PSf composite membrane with 0.50wt% SGO is the best. © 2019, Editorial Office of Acta Materiae Compositae Sinica. All right reserved.
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页码：2515 / 2521
页数：6
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