Influence of preparation temperature on structure and performance of PVDF-TiO_2 composite membranes 机翻标题: 暂无翻译,请尝试点击翻译按钮。

会议集名/来源
23rd International Congress of Chemical and Process Engineering (CHISA 2018) and 21st Conference on Process Integration, Modelling and Optimisation for Energy Saving and Pollution Reduction (PRES 2018), Vol.1: Prague(CZ).25-29 August 2018
出版年
2018
页码
202-203
会议地点
Prague
作者单位
Institut Europeen des Membranes (IEM), UMR 5635 (CNRS-ENSCM-UM2), Universite de Montpellier, 2 Place Eugene Bataillon, 34095 Montpellier Cedex 5, FranceInstitut Europeen des Membranes (IEM), UMR 5635 (CNRS-ENSCM-UM2), Universite de Montpellier, 2 Place Eugene Bataillon, 34095 Montpellier Cedex 5, FranceInstitut Europeen des Membranes (IEM), UMR 5635 (CNRS-ENSCM-UM2), Universite de Montpellier, 2 Place Eugene Bataillon, 34095 Montpellier Cedex 5, FranceInstitut Europeen des Membranes (IEM), UMR 5635 (CNRS-ENSCM-UM2), Universite de Montpellier, 2 Place Eugene Bataillon, 34095 Montpellier Cedex 5, FranceInstitut Europeen des Membranes (IEM), UMR 5635 (CNRS-ENSCM-UM2), Universite de Montpellier, 2 Place Eugene Bataillon, 34095 Montpellier Cedex 5, France
作者
D.T. Tran;J-P. Mericq;J. Mendret;S. Brosillon;C. Faur
摘要
While polyvinylidene fluoride (PVDF) membranes have been widely used in various separation applications due to their good properties, they still suffer from a common problem of most polymeric membranes: the hydrophobicity of the polymer makes them more susceptible to fouling, thus reducing their performance. Incorporating nanoparticles like TiO_2 to the polymer matrix is an effective method to mitigate this drawback, as the particles not only add hydrophilicity to the membrane but also make it photo-active under UV irradiation. In the past, composite PVDF-TiO_2 membranes have been the object of many studies, and were shown to have high performance, notably the increased permeate flux and self-cleaning ability. A concentration of about 20 wt% of TiO_2 to PVDF was identified as optimal for the best performance of such membrane [1]. Nevertheless, the membrane formation process via non-solvent induced phase separation (NIPS) method is controlled by many factors, one of which is the temperature. To understand the role temperature plays during membrane preparation would allow the tuning of membrane structure and performance for the appropriate purposes. Thus in this study, we aim to investigate the difference in structure and performance of PVDF-TiO_2 membranes when prepared at different temperatures via various characterization methods.
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