用于有机溶剂体系分离的氧化石墨烯基复合膜的构筑  

Construction of graphene oxide membrane for the separation in organic solvent system

作　　者：汪林 纪树兰[1] 王乃鑫[1] 张文海 安全福 王晓琳[2] WANG Lin;JI Shulan;WANG Naixin;ZHANG Wenhai;An Quanfu;WANG XiaoliN(College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124,China;Department of Chemical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]北京工业大学环境与能源工程学院,北京100124 [2]清华大学化学工程系,北京100084

出　　处：《膜科学与技术》2020年第1期352-359,共8页Membrane Science and Technology

基　　金：国家自然科学基金资助项目(21576003,21776003和21878004)。

摘　　要：膜技术在有机溶剂体系分离领域具有广阔的应用前景,但其在应用过程中选择性与渗透性博弈的Trade-off现象是限制其发展的主要瓶颈.在保证分离层致密完整的前提下,构筑高效稳定的选择性传质通道为解决该问题提供了新策略,其中具有二维片层结构、丰富的功能化基团及良好机械强度的氧化石墨烯(GO)已成为极具潜力的构筑基元.通过对GO纳米片的功能化改性及对成膜组装过程的优化调控以构筑有机小分子快速传质的渗透通道,可实现GO基复合膜在有机溶剂纳滤和优先透有机物渗透汽化领域的应用.文中总结了近年来课题组在这一领域的研究进展.Membrane technology showed great potentials in the area of organic solvent system separating.However,most membranes have been hindered from further applications due to the trade-off effects between permeability and selectivity.Thus,membranes with efficient and stable mass transfer channels are urgently required.Graphene oxide(GO)have emerged as desirable materials for membrane preparation due to their one-atomic thickness,unique two-dimensional structure,abundant functional groups,and excellent mechanical properties.Improving the affinity to organics by modifying the GO nanosheets,and constructing stable mass transfer channel via suitable assembly methods were deemed pivotal to fabricate a promising membrane for the separation of organic solvent system.These research progress of our group in this field was summarized in this paper.

关 键 词：氧化石墨烯 传质通道 有机溶剂纳滤 渗透汽化 

分 类 号：TQ028.8[化学工程]