改性污泥炭/TiO_(2)/PVP/PVDF超滤膜的制备及其性能测试  

Preparation of modified sludge-based carbon/TiO_(2)/PVP/PVDF ultrafiltration membrane and test on its performance

作　　者：房平 胡张凡 温璐 任鹏[2] 李岩[2] 范恩然 FANG Ping;HU Zhang-fan;WEN Lu;REN Peng;LI Yan;FAN En-ran(School of Urban Planning and Municipal Engineering,Xi'an Polytechnic University,Xi'an 710048,China;Oil and Gas Technology Research Institute,PetroChina Changqing Oilfield Company,Xi'an 710018,China)

机构地区：[1]西安工程大学城市规划与市政工程学院,陕西西安710048 [2]长庆油田分公司油气工艺研究院,陕西西安710018

出　　处：《现代化工》2023年第5期106-108,114,共4页Modern Chemical Industry

基　　金：陕西省重点研发计划项目(2021-NY188)。

摘　　要：采用铁离子改性污泥炭(Fe_(3)O_(4)/SAC磁质炭)、二氧化钛(TiO_(2))和聚乙烯吡咯烷酮(PVP)为添加剂进行聚偏氟乙烯(PVDF)膜的改性,并对共混膜的各项性能进行测试和表征。结果表明,当TiO_(2)和Fe_(3)O_(4)/SAC磁质炭质量分数分别为0.15%、0.2%时,膜的综合性能最佳。此时,接触角为48.5°,纯水通量为1243.43 L/(m^(2)·h),牛血清蛋白截留率为95.21%。The modified sludge-based carbon(Fe_(3)O_(4)/SAC magnetic carbon),titanium dioxide(TiO_(2))and polyvinylpyrrolidone(PVP)are used as additives to modify polyvinylidene fluoride(PVDF)membrane,and the properties of the blending membrane are tested and characterized.The results show that the modified membrane exhibits the best performance when the mass fractions of TiO_(2)and Fe_(3)O_(4)/SAC magnetic carbon are 0.15%and 0.2%,respectively.The optimal membrane has a contact angle of 48.5°,a pure water flux of 1243.43 L/(m^(2)·h),and showing a 95.21%of rejection rate to bovine serum protein.

关 键 词：聚偏氟乙烯 改性膜 改性污泥炭 二氧化钛 聚乙烯吡咯烷酮 

分 类 号：TQ051.893[化学工程]