Membrane Science and Technology

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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

Reference：

[1] Bonyadi, S., Chung, T. S. and Rajagopalan, R., A Novel Approach to Fabricate Macrovoid-Free and Highly Permeable PVDF Hollow Fiber Membranes for Membrane Distillation. Aiche Journal, 55(3) (2009) 828-833.
[2] Lawson, K. W. and Lloyd, D. R., Membrane distillation. Journal of Membrane Science, 124(1) (1997) 1-25.
[3] El-Bourawi, M. S., Ding, Z., Ma, R., et al., A framework for better understanding membrane distillation separation process. Journal of Membrane Science, 285(1-2) (2006) 4-29.
[4] Song, L. M., Li, B., Sirkar, K. K., et al., Direct contact membrane distillation-based desalination: Novel membranes, devices, larger-scale studies, and a model. Industrial & Engineering Chemistry Research, 46(8) (2007) 2307-2323.
[5] Song, L. M., Ma, Z. D., Liao, X. H., et al., Pilot plant studies of novel membranes and devices for direct contact membrane distillation-based desalination. Journal of Membrane Science, 323(2) (2008) 257-270.
[6] Teoh, M. M., Bonyadi, S. and Chung, T. S., Investigation of different hollow fiber module designs for flux enhancement in the membrane distillation process. Journal of Membrane Science, 311(1-2) (2008) 371-379.
[7] Wang, J., Fan, B., Luan, Z. K., et al., Integration of direct contact membrane distillation and recirculating cooling water system for pure water production. Journal of Cleaner Production, 16(17) (2008) 1847-1855.
[8] Wang, K. Y., Chung, T. S. and Gryta, M., Hydrophobic PVDF hollow fiber membranes with narrow pore size distribution and ultra-thin skin for the fresh water production through membrane distillation. Chemical Engineering Science, 63(9) (2008) 2587-2594.
[9] He, F., Sirkar, K. K. and Gilron, J., Studies on scaling of membranes in desalination by direct contact membrane distillation: CaCO3 and mixed CaCO3/CaSO4 systems. Chemical Engineering Science, 64(8) (2009) 1844-1859.
[10] He, T. X. and Yan, L. J., Application of alternative energy integration technology in seawater desalination. Desalination, 249(1) (2009) 104-108.
[11] Wu, Y., Kong, Y., Lin, X., et al., Surface-modified hydrophilic membranes in membrane distillation. Journal of Membrane Science, 72(2) (1992) 189-196.
[12] Khayet, M. and Matsuura, T., Application of surface modifying macromolecules for the preparation of membranes for membrane distillation. Desalination, 158(1-3) (2003) 51-56.
[13] 徐丽, 许颖, 杜春慧, et al., 聚醚砜微孔膜的疏水改性及其在膜蒸馏中的应用. 功能材料, 38(4) (2007) 573-579.
[14] 林汉阳, 武春瑞,吕晓龙, 聚偏氟乙烯膜的超疏水改性研究. 膜科学与技术, 30(2) (2010) 39-44.
[15] Li, G. L., Wei, X., Wang , W., J., et al., Modification of unsaturated polyester resins (UP) and reinforced UP resins via plasma treatment. Applied Surface Science, 257 (2010) 290-295.
[16] Qin, J.-J., Oo, M. H. and Li, Y., Development of high flux polyethersulfone hollow fiber ultrafiltration membranes from a low critical solution temperature dope via hypochlorite treatment. Journal of Membrane Science, 247 (2005) 137-142.
[17] Li, X. M., Xing, W. and He, T., Separation Performance of Bench-Scale Direct Contact Membrane Distillation: Rejection rate or Separation factor? Journal Membrane Science, Submitted (2010).

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