Preparation and characterization of PES/TiO2 composite membranes
Preparation and characterization of PES/TiO2 composite membranes
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DOI：
10.1016/j.apsusc.2008.05.221
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发表时间：
2008-08-30
影响因子：
6.7
通讯作者：
Xu, Youyi
中科院分区：
文献类型：
--
作者：
Wu, Guiping;Gan, Shuying;Xu, Youyi
以纳米TiO 2为添加剂，采用相转化法制备了聚醚砜（PES）/TiO 2复合膜。通过SEM、XRD、TGA、接触角测定仪、机械强度测试和过滤实验，研究了TiO 2对PES/TiO 2膜形貌和性能的影响。结果表明，TiO 2的加入对膜的结构没有明显影响，纳米TiO 2的加入提高了膜的亲水性、热稳定性、机械强度和抗污染能力。在0.5重量% TiO 2含量，复合膜具有优异的性能，但是较高的TiO 2含量（大于0.5wt.%）导致膜的孔结构缺陷和性能下降，如渗透性和机械强度。TGA和机械强度分析表明，聚合物和纳米TiO 2之间的良好的相容性。(C)2008年爱思唯尔B。V.保留所有权利。
Polyethersulfone (PES)/TiO2 composite membranes were prepared by phase inversion method with nano-TiO2 as additive. The influence of TiO2 on the morphologies and the performances of PES/TiO2 membranes were investigated through the methods of SEM, XRD, TGA, contact angle goniometer, mechanical strength tests and filtration experiments. The results showed that the structure of membrane was not obviously affected by addition of TiO2, and the performances such as hydrophilicity, thermal stability, mechanical strength and anti-fouling ability of membrane were enhanced through adding TiO2 nanoparticles. At 0.5 wt.% TiO2 content, the composite membrane has an excellent performance, however higher TiO2 content (than 0.5 wt.%) resulted in defective pore structure of the membranes and decline of the performances, such as permeability and mechanical strength. TGA and mechanical strength analyses indicated good compatibility between polymers and TiO2 nanoparticles. (C) 2008 Elsevier B. V. All rights reserved.