静电纺PES/TiO_2支撑层正渗透膜的制备及其性能分析  

Fabrication and characteristics of electrospinning PES/TiO_2 nanofiber supported forward osmosis membrane

作　　者：李贝贝[1] 黄满红[1] 蔡腾 牛飞虎 

机构地区：[1]东华大学环境科学与工程学院国家环境保护纺织污染防治工程技术中心,上海201620

出　　处：《膜科学与技术》2017年第6期15-24,共10页Membrane Science and Technology

基　　金：国家自然科学基金资助项目(21477018);中央高校基本科研业务费专项资金重点项目(15D111323);科技部重点研发计划(2016YFC0400502)

摘　　要：用静电纺丝技术制备PES/TiO_2纳米纤维支撑层,分析了添加质量分数0.05%、0.15%和0.45%的TiO_2对纳米纤维支撑层的特性影响,在此基础上进行界面聚合制备正渗透膜.结果表明:质量分数26%PES中添加0.15%TiO_2制备的纳米纤维支撑层,孔径较均匀,经界面聚合后所制得的正渗透膜表面平均粗糙度较低,FO模式和PRO模式1h平均水通量J_W为7.05L/(m^2·h)和15.20L/(m^2·h),其J_S/J_W优于商业膜,PES中添加质量分数0.15%TiO_2得到的纳米纤维支撑层所制备的正渗透膜在两种模式下均表现出较好的稳定性.PES （poly ether sulphone）/TiO2 nanofiber support memhranes were fabricated by electro spinning. Effects of TiO2 addition of 0. 05%, 0. 15% and 0. 45% on the properties of nano-fiber membranes were analyzed. Under this basis, forward osmosis membranes were fabricated by interracial polymerization. Results showed that when 0. 15% TiO2 was added into 26% PES to form the fiber support layer, the pore size is relatively uniform, and the average roughness after polymerization is low. Average water flux was 7. 05 L/（m2 · h） and 15. 20 L/（m2 ·h） in FO mode and PRO mode. Js/Jw of the asprepared membrane is better than commercial membrane. The forward osmosis membrane with the addition of 0. 15% TiO2 shows better stability in the two modes.

关 键 词：静电纺丝 PES/TiO2 界面聚合 正渗透膜 

分 类 号：TQ051.893[化学工程] TQ340.64