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Preparation and characterization of PSF ultrafiltration membrane with inner surface loaded silver particles

Authors： XU Yang¹, REN Qiaochu¹,YANG Hu¹,XU Zhenliang¹, JIANG Banghe²

Units： 1State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology, Shanghai 200237, China. 2 Huachang Polymers L.L.C, Shanghai 200237, China.

KeyWords： Hollow fiber membrane; Ag particle; Antifouling; Polysulfone

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2016,36(1):7-11

Abstract：

Using silver nitrate (AgNO3) as a raw material, N,N-dimethyl formamide (DMF) as a reducing agent and poly (vinyl pyrrolidone) (PVP) as a dispersing agent, Ag particles were fabricated by reducing. Polysulfone (PSF) hollow fiber ultrafiltration membranes were prepared via non-solvent induced phase separation (NIPS) method using the solution containing Ag particles as a bore fluid. The membrane was characterized by Scanning Electron Microscopy (SEM) and contact angle. The hydrophilicity of the membrane inner surface was improved by the integration of Ag particles, leading to an increase in pure water flux from 378 to 452 L/m2h and a reduction in membrane inner surface contact angle from 86 to 78°. The organic antifouling performance was evaluated by using the humic acid solution. The experimental results confirm that the existence of Ag particles in PSF ultrafiltration membrane could mitigate the adsorption and deposition of organics to the organic fouling resistance.

Funds：

上海市科技攻关计划(13521102000)和江苏省科技工业支撑计划(BE2013031)

AuthorIntro：

徐杨（1990-），男，江苏启东人，硕士研究生，主要从事膜分离技术的研究工作。通讯联系人：Email：chemxuzl@ecust.edu.cn

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