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    請使用永久網址來引用或連結此文件: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/122227

    題名: Asymmetric and Bi-continuously Structured Polyethersulfone (PES) Membranes with Superior Water Flux for Ultrafiltration Application
    作者: Chang, Chao-Ching;Yu, Szu-Ting;Su, Jenn Fang;Cheng, Liao-Ping
    關鍵詞: Membrane;Polyethersulfone;Nonsolvent induced phase separation;Asymmetric bi-continuous structure;Ultrafiltration;Water permeation flux
    日期: 2021-12-27
    上傳時間: 2022-02-24 12:12:21 (UTC+8)
    摘要: This work reports a fabrication of asymmetric polyethersulfone (PES) membranes from the water/γ-butyllactone (GBL)/polyvinylpyrrolidone (PVP)/PES system using non-solvent induced phase separation (NIPS) process. Different amounts of PVP and PES are added into the environmentally friendly solvent, GBL, to form the dope solutions and their effects on the morphological, physical, permeation, and filtration properties of formed membranes are systematically studied. The results demonstrate that the pore size on the top surface and the size of macrovoids in the bulk increase with increasing PVP content and decreasing PES amount in the dope. In the optimal conditions (PVP/PES ratio approaches 1, in particular), the macrovoids disappears and the pores evolve into three-dimensional pore networks in PES matrix. This unique bi-continuous membrane exhibits a remarkable water permeation flux of nearly 1000 L•m−2 h−1 and a BSA rejection of 91%.
    關聯: Journal of Polymer Research 29(1), 23
    DOI: 10.1007/s10965-021-02867-6
    顯示於類別:[化學工程與材料工程學系暨研究所] 期刊論文


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