摘要
桥联型有机硅是以桥联倍半硅氧烷为硅源前驱体,通常利用溶胶-凝胶法水解缩聚反应制得.与传统基于正硅酸乙酯(TEOS)制备的无机SiO2材料相比,桥联有机硅膜具有更优良的水热稳定性及孔道类型、尺寸、表面性质便于灵活调控等独特优点,使其在气体分离、反渗透脱盐、渗透汽化脱水、有机溶剂分离等领域展现出广阔的应用前景和独特的性能优势.主要介绍了桥联型有机硅前驱体类型、制膜方法以及影响分离性能的因素,并探讨了其在膜分离领域的应用研究进展.
Bridged organosilica is commonly prepared by sol-gel hydrolysis and condensation reaction using bridged sesquiosiloxane as precursors.Compared with the traditional inorganic SiO2 material based on TEOS,the bridged organosilica membranes present advantages of higher hydrothermal stability,and convenient and flexible tuning of pore size and surface properties,which broad the application prospects and unique properties in gas separation,reverse osmosis in desalination,pervaporation dehydration,organic solvent separation and other fields.This review mainly introduced the types of bridged organosilica precursors,membrane preparation and the effect factors of their separation performances,and the applications and research progress in the field of membrane separation were discussed.
作者
廖明佳
朱韵
任秀秀
龚耿浩
LIAO Mingjia;ZHU Yun;REN Xiuxiu;GONG Genghao(Chongqing Vocational College of Chemical Engineering,Chongqing 401228,China;State Key Laboratory of Membrane Separation and Membrane Process,College of Materials Science and Engineering,Tiangong University,Tianjin 300387,China;Chongqing Vocational Institute of Engineering,Chongqing 402260,China;Changzhou Univerisity,Changzhou 213164,China)
出处
《膜科学与技术》
CAS
CSCD
北大核心
2021年第2期147-156,共10页
Membrane Science and Technology
基金
重庆市教育委员会科学技术研究基金(KJQN201904501)
天津市自然科学基金(18JCYBJC43300)
天津市科技计划项目(20ZYJDJC00100)
江苏省绿色催化材料与技术重点实验室开放课题基金(BM2012110)
重庆市教委科学技术研究项目(KJQN202003408)。
关键词
桥联有机硅
有机硅分离膜
溶胶-凝胶
膜制备
bridged organosilica
organosilica separation membrane
sol-gel
membrane preparation
