Antifouling enhancement of polysulfone/TiO2 nanocomposite separation membrane by plasma etching

14th International Workshop on Slow Positron Beam Techniques & Applications

Chen, Z.^1 ; Yin, C.^1 ; Wang, S.^1 ; Ito, K.^2 ; Fu, Q.M.^1 ; Deng, Q.R.^1 ; Fu, P.^1 ; Lin, Z.D.^1 ; Zhang, Y.^1

Hubei Key Laboratory of Plasma Chemical and Advanced Materials, Department of Material Science and Engineering, Wuhan Institute of Technology, Wuhan

430073, China^1

National Institute of Advanced Industrial Science and Technology (AIST), Ibaraki, Tsukuba

305-8565, Japan^2

关键词: Antifouling characteristics;    Degradation of rhodamin b;    Membrane surface;    Nano-composite membranes;    Photo-catalytic;    Plasma treatment;    Separation membranes;    TiO2 nano-particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/791/1/012025/pdf
DOI  :  10.1088/1742-6596/791/1/012025

来源: IOP

【 摘 要 】

A polysulfone/TiO2nanocomposite membrane was prepared via casting method, followed by the plasma etching of the membrane surface. Doppler broadened energy spectra vs. positron incident energy were employed to elucidate depth profiles of the nanostructure for the as-prepared and treated membranes. The results confirmed that the near-surface of the membrane was modified by the plasma treatment. The antifouling characteristics for the membranes, evaluated using the degradation of Rhodamin B, indicated that the plasma treatment enhances the photo catalytic ability of the membrane, suggesting that more TiO2nanoparticles are exposed at the membrane surface after the plasma treatment as supported by the positron result.