MIL-68(Al)/PPSU混合基质膜的制备  

Fabrication of MIL-68(Al)/PPSU mixed matrix membrane

作　　者：樊舒心 赵魁 卢晓会 宋宇轩 陈向上 肖淑娟 FAN Shu-xin;ZHAO Kui;LU Xiao-hui;SONG Yu-xuan;CHEN Xiang-shang;XIAO Shu-juan(College of Material Science and Engineering,North China University of Science and Technology,Tangshan 063210,China)

机构地区：[1]华北理工大学材料科学与工程学院,河北唐山063210

出　　处：《现代化工》2021年第6期192-196,共5页Modern Chemical Industry

基　　金：华北理工大学大学生创新训练计划项目(X2018083,X2019084);唐山市工业领域重点研发项目(19140204F)。

摘　　要：以聚亚苯基砜(PPSU)为基膜材料、合成的铝基MOFs材料MIL-68(Al)为添加粒子,采用浸没沉淀相转化法制备了MOFs掺杂量不同的MIL-68(Al)/PPSU混合基质膜。对所制得的MIL-68(Al)进行表征,考察了MIL-68(Al)不同的掺杂量对混合基质膜的微观形貌及分离性能的影响。结果表明,当加入质量分数1%的MIL-68(Al)时,膜中出现均匀的孔道结构;此时,水通量可达到137.14 L/(m^(2)·h),比纯膜提高了17.96%,对甲基紫溶液的截留率为92.94%。另外,MIL-68(Al)的加入使膜的抗污染能力有所提高。MIL-68(Al)/PPSU mixed matrix membranes with different MIL-68(Al)contents have been fabricated by means of the immersion precipitation process using polyphenylene sulfone(PPSU)as base membrane material,and MIL-68(Al),a synthesized Al-based metal organic frameworks material,as adding particles.MIL-68(Al)synthesized is characterized,and the effects of different doping amount of MIL-68(Al)on the microstructure and separation performance of mixed matrix membranes are discussed.The results indicate that an evenly distributed pore structure forms in the membranes when MIL-68(Al)dosage is 1 wt%.Water flux of these membranes can reach 137.14 L/(m^(2)·h),which is 17.96%higher than that of pure membranes.The retention rate of MIL-68(Al)/PPSU to methyl violet solution reaches 92.94%.In addition,MIL-68(Al)/PPSU shows a higher fouling resistance because of the addition of MIL-68(Al).

关 键 词：膜分离 金属有机骨架 聚亚苯基砜 混合基质膜 

分 类 号：TB34[一般工业技术—材料科学与工程]