膜科学与技术

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Low-temperature CF4 plasma surface modified hydrophilic PES membrane for direct contact membrane distillation

Authors： Xing Wei1, Xue-mei Li1**, Ben-qiao He2, Yong Yin1, Yun-yan Zhang 1, Tao He1,3**

Units： 1State Key Laboratory of Materials-Oriented Chemical Engineering,

KeyWords： Membrane Distillation; Surface treatment; Hydrophobic; Polyethersulfone; CF4

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2011,31(6):50-55

Abstract：

A new type of PES membrane for membrane distillation based an asymmetric hydrophilic PES membrane was prepared by surface modification via CF4 plasma treatment. The membrane morphology, hydrophobicity and performance in DCMD were characterized. The water contact angle of CF4 treated membrane was about 120o. A water flux of 44 kg/m2h (feed salt solution temperature at 7372.6oC, cold side temperature at 15 oC) and salt rejection of 99.96100% were obtained. The research work indicates that porous membranes with small pore size are promising for commercial applications.

Funds：

国家重大基础研究973项目(No.2009CB623402), 自然科学基金（20976083）,科技部中-以合作研究项目(201001)

AuthorIntro：

魏星（1986-）,男,安徽寿县人,硕士研究生,主要从事有机膜的表面改性及其在直接接触式膜蒸馏（DCMD）中的应用. 联系人(het@sari.ac.cn weixing0564@1163.com). 通讯地址：南京市新模范马路5号南京工业大学化工楼201，邮编：210009

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