膜科学与技术

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Hydrophobic membrane preparation by CF4 plasma modification for membrane distillation

Authors： YANG Chi1，2, XIE Yingming1*, YIN Yong2, TIAN Miaomiao2, SONG, Jianfeng2, LI，Chunxia2, KONG, Dingfeng2, LI Xuemei*2, HE Tao*2

Units： 1 School of Energy and Power Engineering, Shanghai University of Science and Technology, Shanghai, 200093; 2 Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210

KeyWords： Membrane distillation; plasma modification; superhydrophobic; flux

ClassificationCode：TQ050.4; TQ028.8

year,volume(issue):pagination： 2014,34(5):4-8

Abstract：

Hydrophobicity of the membrane is a key factor for the membrane distillation process that affects product water quality and operation stability. This paper summarized the research progress of our research group on CF4 plasma modification of hydrophilic (UF and MF) and hydrophobic membranes for direct contact membrane distillation (DCMD). The mechanism of CF4 plasma modification is illustrated as well as its impact on the performance and characteristics of originally hydrophilic and hydrophobic membranes. The effect of (super)hydrophobicity was proposed as it can increase the effective evaporation area and consequently increase the flux and energy efficiency in the DCMD process.

Funds：

国家重大基础研究973项目 (No. 2009CB623402, 2012CB720903 )，自然科学基金项目(21176119, 51206114)，上海市博士后科研资助计划（项目编号13R21421600)，壳牌前沿研究基金。

AuthorIntro：

杨迟（1988-），男，湖北宜昌人，硕士研究生，从事膜材料制备及应用研究。*通讯联系人：李雪梅Email: lixm@sari.ac.cn; 何涛Email: het@sari.ac.cn.

Reference：

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[2] Alkhudhiri, A., N. Darwish, and N. Hilal, Membrane distillation: A comprehensive review[J]. Desalination, 2012. 287(0): p. 2-18.
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[4] Wei, X., et al., CF4 plasma surface modification of asymmetric hydrophilic polyethersulfone membranes for direct contact membrane distillation[J]. Journal of Membrane Science, 2012. 407–408(0): p. 164-175.
[5] Li, X.M., et al., A sacrificial-layer approach to prepare microfiltration membranes. Journal of Membrane Science, 2008. 320(1-2): p. 1-7.
[6] Ji, Y., et al., Morphological control and cross-flow filtration of microfiltration membranes prepared via a sacrificial-layer approach[J]. Journal of Membrane Science, 2010. 353(1–2): p. 159-168.

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