凹凸棒石复合分离膜的研究进展  

Research progress of attapulgite composite separation membranes

作　　者：蒋丽红[1] 彭世鸿 郭成金 杨晨 刘志华 何沛 JIANG Lihong;PENG Shihong;GUO Chengjin;YANG Chen;LIU Zhihua;HE Pei(Faculty of Chemical Engineering,Kunming University of Science and Technology,Kunming 650500,Yunnan,China;Technology Center of China Tobacco Yunnan Industrial Co.,Ltd.,Kunming 650231,Yunnan,China)

机构地区：[1]昆明理工大学化学工程学院,云南昆明650500 [2]云南中烟工业责任有限公司技术中心,云南昆明650231

出　　处：《精细化工》2022年第3期461-468,共8页Fine Chemicals

基　　金：国家自然科学基金联合重点支持项目(U1202265);国家自然科学基金(21266012)。

摘　　要：凹凸棒石(ATP)是一种廉价易得的天然黏土矿物,具有比表面积大、阳离子交换容量高、表面官能团丰富等特点,通过不同的方法改性,可以与各种基膜结合形成复合膜。综述了ATP复合分离膜的不同制备方法,比较了其优缺点;总结了ATP添加量对复合膜拉伸强度、杨氏模量、断裂伸长率等力学性能的影响,进而介绍了ATP复合分离膜在CO_(2)分离、重金属分离、染料分离、油水分离等方面的应用,并分析了其分离机理。最后展望了ATP复合分离膜面临的挑战和研究方向。Attapulgite(ATP)is a cheap and easy-to-obtain natural clay mineral and has characteristics such as large specific surface area,high cation exchange capacity,and abundant surface functional groups.It can combine with various base membranes to form composite membranes by different modification methods.Different preparation methods of ATP composite separation membranes are reviewed and their advantages and disadvantages are compared.The effects of ATP addition amount on the tensile strength,Young’s modulus and elongation at break of composite membranes are summarized.The applications of ATP composite membranes in CO_(2) separation,heavy metal separation,dye separation and oil-water separation are introduced,and the separation mechanism is analyzed.Finally,the challenges and research direction of ATP composite separation membranes are prospected.

关 键 词：凹凸棒石 膜制备 复合膜 力学性能 膜分离 

分 类 号：TQ051.8[化学工程]