【作者】 李杰； 张国俊； 纪树兰； 高京杰； 安慰；

【Author】 LI Jie,ZHANG Guojun,JI Shulan,GAO Jingjie,AN Wei (College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China)

【机构】 北京工业大学 环境与能源工程学院；

【摘要】 采用动态层层吸附法在平板及中空纤维聚丙烯腈基膜上成功组装了纳米杂化聚电解质复合物膜.研究了杂化膜表面的Zeta电位和表面形貌,考察了不同组件形式、派对数对杂化膜渗透汽化性能的影响.实验结果表明:所制备的PDDA-ZrO₂/PSS-ZrO₂杂化膜Zeta电位在-6 mV至6 mV间变化,表面致密无孔,对于95%乙醇/水体系,平板膜式PDDA-ZrO₂/PSS-ZrO₂杂化膜与PDDA/PSS膜相比分离因子由192提高到423,中空纤维式PDDA-ZrO₂/PSS-ZrO₂杂化膜分离因子由403提高到18 981,且渗透通量有显著提高.更多还原

【Abstract】 In this paper,polyelectrolyte nanohybrid membranes were successfully assembled on flat sheet and hollow fiber PAN ultrafiltration support membranes by dynamic layer-by-layer absorption.The surfaces of nanohybrid membranes were observed by Zeta potential and SEM.The surfaces of the PDDAZrO₂ /PSS-ZrO₂ hybrid membranes were dense and non-porous.The zeta potentials changed between—6 mV to 6 mV.In the case of pervaporation of 95%iso-butyl/water mixtures,the separation factor of sheet and hollow fiber hybrid membranes were 423 and 18981,respectively.更多还原