高校化学工程学报2023，Vol.37Issue(6)：897-905,9.DOI:10.3969/j.issn.1003-9015.2023.06.004
氧化石墨烯掺杂磺化芳香嵌段聚合物制备高性能渗透汽化脱盐膜
Preparation of high-performance pervaporation desalination membranes by doping sulfonated aromatic block copolymers with graphene oxide
摘要
Abstract
Pervaporation desalination has advantages in treating high saline brine.Sulfonated aromatic polymer(SAP)features micro-phase separation structures and ionic nano-channels that make it a potential membrane material for desalination.In order to improve the separation performance of SAP membrane while maintaining great mechanical strength,SAP-GO/PTFE mixed matrix membranes(MMMs)were prepared with hydrophilic polytetrafluoroethylene(PTFE)porous film as the support,a synthesized SAP sulfonated polystyrene-grafted SEBS(S-SEBS-g-PSt)as the polymer matrix and two-dimensional graphene oxide(GO)as the inorganic fillers.The results show that GO doping significantly improves hydrophilicity,mechanical strength and dimensional stability of SAP membranes.When GO loading reached 1%,a high flux of 91.8 kg·(m2·h)-1 and a salt rejection over 99.96%were achieved for 10%NaCl solution treatment at 80℃,which demonstrates the great potential in industrial applications.关键词
磺化芳香聚合物/氧化石墨烯/掺杂改性/渗透汽化脱盐Key words
sulfonated aromatic polymer(SAP)/graphene oxide(GO)/doping modification/pervaporation desalination分类
化学化工引用本文复制引用
延檬羽,申伟煜,王子恒,张世茂,李娜..氧化石墨烯掺杂磺化芳香嵌段聚合物制备高性能渗透汽化脱盐膜[J].高校化学工程学报,2023,37(6):897-905,9.基金项目
国家自然科学基金(2176210) （2176210）
陕西省自然科学基础研究计划企业联合基金(2019JLM-23). （2019JLM-23）
