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    Preparation and characterization of ZnO/polyethersulfone (PES) hybrid membranes

    Year: 2012

    Journal: Desalination 2012, 293 pp 21-29, 20121211

    Authors: Liguo Shen, Xiaokai Bian, Xiaofeng Lu, Liuqing Shi, Zhongying Liu, Lifang Chen, Zhengchi Hou, Kai Fan

    Organizations: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, No. 2019, Jialuo Rd., Jiading Dist., 201800 Shanghai, PR China, Graduate University of Chinese Academy of Sciences, No. 19, Yuquan Rd., Shijingshan Dist., 100049 Beijing, PR China, c Polymers Biopolymers and Surfaces Laboratory, Rouen university, PBS-UMR6270, 76821 Mont St Aignan, France

    With nano-ZnO as an additive, polyethersulfone (PES) membranes and a series of ZnO/PEShybridmembranes were prepared by a phase-inversion method. Experimental results show that, with the increase of addition weight of nano-ZnO the contact angle decreases and the thermo decomposition temperature increases. The porosity of ZnO/PEShybridmembrane is improved by adding nano-ZnO. The flux of ZnO/PEShybridmembrane exhibits an improvement of 254% relative to that of the PESmembrane, whereas the rejection is changed a little. After 90 min of continuous filtrating of BSA solution (1 g/L, pH = 7.4), the flux decreased ratio of the ZnO/PEShybridmembrane (with 0.3 g of added nano-ZnO) is only 7.8%, which implies that the antifouling properties are significantly improved relative to those of the PESmembrane.