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Preparation and Performance of PES/ZnO@rGO Blend Ultrafiltration Membranes

Authors： ZHU Jikai, DING Changkun, QIN Xiwen, XU Man, TIAN YingYing

Units： State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China

KeyWords： ZnO; rGO; polythersulfone; blend membrane; photocatalysis; antifouling

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2022,42(2):47-55

Abstract：

In this work, ZnO@rGO composites were synthesized by solvothermal method, in which ZnO was granular morphology. Using N,N-dimethylacetamide (DMAc) and 1-methy1-2-pyrrolidinone (NMP) as solvents, polyethylene glycol (PEG4000) as pore-forming agent, the polythersulfone (PES)/ZnO@rGO blend membranes were prepared by non-solvent phase separation (NIPS) method. The effect of the addition contents of ZnO@rGO on the structure and performance of PES blend membranes was investigated. The results showed that the water contact angles could change from 83.7° of the PES/ZnO@rGO blend membranes to 66.2° of the pure PES membrane to, and the pure water flux of the blend membranes could achieve 198.12 L/(m2·h), which is 4 times larger than that of the pure PES membrane. In addition, the BSA rejection of PES/ZnO@rGO blend membranes is above 96% and the flux recovery rate increased from 69% to 88%, and the anti-fouling performance of the blend membranes could be improved significantly. Furthermore, the photocatalytic activity of PES/ZnO@rGO blend membranes for MB increased from 68% to 93%, showing excellent photocatalytic ability.

Funds：

天津市中空纤维膜材料与膜过程重点实验室开放课题项目（2021TGUZKXWM2-1）

AuthorIntro：

朱吉凯（1995-），男，河南濮阳市人，硕士生，研究方向为氧化锌/还原氧化石墨烯制备及其聚醚砜膜性能研究

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