Membrane Science and Technology

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Effects of the addition of nano-sized SiO2 on the structure and performance of PVDF/ SiO2 ultrafiltration membrane

Authors： ZHANG Jing 1, LI Xueru 1, FAN Wenling 2, LI Lei 1

Units： 1. Department of Chemical Engineering，School of Chemistry and Chemical Engineering，Nanjing University，Nanjing 210093，Jiangsu，P.R. China; 2. College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210029, Jiangsu，P.R. China

KeyWords： PVDF; nano-sized SiO2; hybrid membrane

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2012, 32(1):51-54

Abstract：

The unmodified, hydrophilic and hydrophobic nano-sized SiO2 were added into the PVDF casting solution respectively, and the PVDF/SiO2 hybrid membranes were prepared by phase inversion method. The effects of SiO2 concentration and the above-mentioned three types of SiO2 on the PVDF membrane performances such as pure water flux, rejection ratio, anti -fouling capability were examined. The experimental results indicated that membrane porosity, mean membrane pore size, pure water flux, rejection ration, anti-fouling capability increased with rising SiO2 concentration firstly and then decreased. Besides, when the SiO2 concentration was 2%, in terms of pure water flux, unmodified nano-sized SiO2 hybrid membrane was the best, followed by hydrophobic nano-sized SiO2 hybrid membrane and hydrophilic nano-sized SiO2 hybrid membrane。Inversely, in terms of anti-fouling capability, hydrophilic nano-sized SiO2 hybrid membrane was the optimal, followed by unmodified nano-sized SiO2 hybrid membrane and hydrophobic nano-sized SiO2 hybrid membrane.

Funds：

国家自然科学基金青年基金项目（项目编号：No. 30801552）；江苏省中医药局科技项目（LZ09006），

AuthorIntro：

张晶（1988-），女，山西省运城市人，硕士生，主要从事聚偏氟乙烯超滤膜的改性与应用研究。*通讯联系人：李磊,博士,副教授,主要从事膜分离技术研究。电话025-83596665;E-mail ll-nju@163.com；地址江苏省南京市汉口路22号南京

Reference：

[1] Young T H, Chang H H, Lin D J, et al. Surface modification of microporous PVDF membranes for neuron culture [J]. J Membr Sci, 2010, 350:32-41.
[2] Yang Xuanxuan, Deng Bo, Lin Zhongying, et al. Microfiltration membranes prepared from acryl amide grafted poly (vinylidene fluoride) powder and their pH sensitive behaviour[J]. J Membr Sci, 2010, 362 : 298-305.
[3] Mu Chunxia, Su Yanlei, Sun Mengmeng, et al. Remarkable improvement of the performance of poly (vinylidene fluoride) microfiltration membranes by the additive cellulose acetate [J]. J Membr Sci, 2010, 350: 293-300.
[4] Wu Lishun, Sun Junfen, Wang Qingrui. Poly (vinylidene fluoride) / Polyethersulfone blend memebranes: effects of solvent sort, polyethersulfone and polyvinylpyrrolidone concentration on their properties and morphology [J]. J Membr Sci, 2006, 285: 290-298.
[5] Qian Li, Xu Zhenliang, Yu Liyun. Effects of mixed solvents and PVDF types on performances of PVDF microporous membranes [J]. J Appl Polyme Sci, 2010, 115: 2277-2287.
[6] Lu Yan, Sun Hong, Li Mengli, et al. Application of the Al2O3-PVDF nanocomposite tubular ultrafiltration (UF) membrane for oily wastewater treatment and its antifouling research [J]. Separation and Purification Technology, 2009, 66: 347-352.
[7] Cui Aillua, Liu Zhen, Xiao Chengfa, et al. Effect of micro-sized SiO2-particle on the performance of PVDF blend membranes via TIPS [J]. J Membr Sci, 2010, 36 (1): 259-264.
[8] 陈娜，彭跃莲，纪树兰. SiO2对PVDF超滤膜性能的影响[J] . 膜科学与技术，2007，27（3）：21-24.
[9] 沈惠玲，廖桦，肖长发.添加剂PEG对PVDF/ SiO2杂化膜性能的影响[J].膜科学与技术，2010，30（1）：65-68.
[10] 张裕卿，张红柳，曲云.填充纳米SiO2对聚偏氟乙烯膜性能的影响[J].膜科学与技术，2007，27（6）：47-51.

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