文献类型：期刊文献

中文题名：UIO-66-NH2渗透汽化复合膜制备及乙醇脱水

英文题名：Preparation of UIO-66-NH2 pervaporation composite membrane and its application in dehydration of ethanol

作者：仲华[1];谢浩然[2];马晓华[2];许振良[2]

机构：[1]上海赛科石油化工有限责任公司,上海201507;[2]上海市多相结构材料化学工程重点实验室,华东理工大学化学工程研究所,膜科学与工程研发中心,上海200237

年份：2019

卷号：39

期号：3

起止页码：79

中文期刊名：膜科学与技术

外文期刊名：Membrane Science and Technology

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：国家自然科学基金项目(21406060)

语种：中文

中文关键词：UIO-66-NH2;PVA;SA;渗透汽化复合膜;醇水分离

外文关键词：UIO-66-NH2;PVA;SA;pervaporation composite membrane;alcohol water separation

摘要：金属有机骨架材料(MOFs)改性高分子渗透汽化复合膜是目前的研究热点.本文采用水热合成法制备UIO-66-NH2,利用旋涂法在改性的聚丙烯腈(PAN)底膜表面涂覆海藻酸钠(SA)、聚乙烯醇(PVA)和UIO-66-NH2混合液制备活性分离层,采用顺丁烯二酸交联分离层制备SA-PVA-MOF/PAN渗透汽化复合膜.考察了SA、PVA和UIO-66-NH2浓度对复合膜形貌结构、亲水性能和醇水分离效果的影响.研究结果表明,复合膜分离层含质量分数1%SA、4%PVA和0.8%UIO-66-NH2时,75℃条件下复合膜对质量分数85%乙醇水溶液的渗透通量最高可达905 g/(m2·h),此时分离因子为308.
Metal-organic frameworks(MOFs) material modified pervaporation membrane is an eternal research hotspot of pervaporation technology. In this work, UIO-66-NH2 was prepared by hydrothermal synthesis. Polyacrylonitrile(PAN) membrane was prepared by non-solvent induced phase separation and was used as the base membrane of composite membrane after alkali treatment. The active separation layer consisting of sodium alginate(SA), polyvinyl alcohol(PVA) and UIO-66-NH2 was coated on the surface of PAN by spin-coating, followed by cross-linking with maleic acid. The effects of concentrations of SA, PVA and UIO-66-NH2 on the morphology, hydrophilicity and separation performance of the composite membrane were investigated. The results showed that the permeation flux of the composite membrane was up to 905 g/(m2·h), along with a separation factor of 308 by dehydration 85%(mass fraction) ethanol solution at 75 ℃.