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Preparation and characterization of PPESK ultrafiltration membrane modified by TiO2 sol

Authors： ZHAO Shanshan, WANG Peng*, ZHANG Linhuan, SUN Xin

Units： School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin, 150090, China

KeyWords： Poly (phthalazine ether sulfone ketone) (PPESK); TiO2; sol-gel; hydrophilicity; high temperature condensed water

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2013,33(4):47-52

Abstract：

TiO2 sol was prepared using sol-gel method and the reaction conditions were optimized. PPESK/TiO2 organic-inorganic hybrid ultrafiltration (UF) membranes with different TiO2 concentrations were prepared by phase inversion method. The effects of TiO2 concentration on the morphologies and properties were investigated through SEM, water contact angle and UF experiments. The results showed that the optimal reaction conditions for TiO2 sol preparation were acetic acid 2 mL, deionized water 2 mL and NMP 20 mL. Under the conditions, the gelation time was 42.5 h. The penetrated finger-like pore structure in sublayer was suppressed, and sponge-like structure began to be developed. The porosity, hydrophilicity and anti-fouling properties have been obviously improved. When TiO2 concentration was 0.4 %, the pure water flux was increased from 310 L•m-2•h-1 to 427 L•m-2•h-1, and the flux recovery rate of membrane was 95.2 %. However, excess TiO2 concentration caused the aggregation of nanoparticles resulting in the performance decline. Compared with PPESK membrane, the PPESK/TiO2 organic-inorganic hybrid UF membrane was better for the purification of high temperature condensed water, showing higher removal efficiency.

Funds：

国家自然科学基金创新团队项目（项目编号：50821002）

AuthorIntro：

赵姗姗（1983- ），女，河北唐山人，博士研究生，超滤和纳滤膜制备及应用。通讯作者：pwang73@hit.edu.cn

Reference：

[1] Jin Zhao, Yang Daling, Zhang Shouhai, et al. Preparation and characterazition of poly(phthalazinone ether sulfone ketone) hollow fiber ultrafiltration membrane with high-molecular weight cut-off [J], J Membrane Sci, 2007, 306: 253-260.
[2] Jian Xigao, Dai Ying, He Gaohong, et al. Preparation of UF and NF poly(phthalazinone ether sulfone ketone) membranes for high temperature application [J], J Membrane Sci, 1999, 161: 185-191.
[3] Jian Xigao, Dai Ying, Zeng L, et al. Application of poly(phthalazinoneether sulfone ketone)s to gas membrane separation [J], J Appl Polym Sci, 1999, 71: 2385-2390.
[4] Jian Xigao, Yan Chun, Zhang Huamin, et al. Synthesis and characterization of quaternized poly(phthalazinone ether sulfone ketone) for anion-exchange membrane [J], Chin Chem Lett, 2007, 18: 1269–1272.
[5] 于兰哲，唐橙橙，贠延滨等. PSf/PPESK共混超滤膜制备及性能研究[J], 膜科学与技术, 2011, 31: 89-94.
[6] Dai Ying, Jian Xigao, Zhang Shouhai, et al. Thermostable ultrafiltration and nanofiltration membranes from sulfonated poly(phthalazinone ether sulfone ketone) [J], J Membrane Sci, 2001, 188: 195–203.
[7] Zhu Liping, Xu Li, Zhu Baoku, et al. Preparation and characterization of improved fouling-resistant PPESK ultrafiltration membranes with amphiphilic PPESK-graft-PEG copolymers as additives [J], J Membrane Sci, 2007, 294: 196–206.
[8] Zhu Liping, Dong Hanbang, Wei Xiuzhen, et al. Tethering hydrophilic polymer brushes onto PPESK membranes via surface-initiated atom transfer radical polymerization [J], J Membrane Sci, 2008, 320: 407–415.
[9] Yang Yanan, Wang Peng. Preparation and characterizations of a new PS/TiO2 hybrid membranes by sol–gel process [J], Polymer, 2006, 47: 2683-2688.
[10] 杨亚楠，王鹏，郑庆柱. 聚砜/纳米TiO2有机-无机复合超滤膜的制备与表征[J], 高校化学工程学报, 2007, 21: 766-772.
[11] Damodar R A, You Shengjie, Chou Hui-Hsiang. Study the self cleaning, antibacterial and photocatalytic properties of TiO2 entrapped PVDF membranes [J], J Hazard Mater, 2009, 172: 1321-1328.
[12] 杜宏伟，孔瑛. NMP中制备TiO2溶胶及其凝胶化[J], 应用化学, 2002, 19: 882-885.
[13] 杨亚楠. 聚砜/纳米二氧化钛有机-无机超滤膜的制备及性能研究[D]: 工学博士学位论文. 哈尔滨：哈尔滨工业大学, 2006, 1-149.
[14] 于海琴，李永华，赵宏峥. SiO2/PSf杂化超滤膜制备和性能研究[J], 膜科学与技术, 2010, 30: 28-33.
[15] 杜志尧. 凝结水处理技术的研究与应用[D]: 工学硕士论文. 天津：天津大学, 2005, 1-58.

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