上海海洋大学学报2024，Vol.33Issue(5)：1292-1298,7.DOI:10.12024/jsou.20240104405
RGO/SiO2复合膜的制备及其在海水淡化中的应用
Preparation and application of RGO/SiO2 composite membranes in seawater desalination
摘要
Abstract
Graphene oxide(GO)membranes have good separation performance,but their low water flux and poor stability need further improvement.For this reason,this paper employs a hydrothermal method to prepare reduced graphene oxide(RGO),and utilizes silicon dioxide(SiO2)to intercalate RGO,and then prepares RGO/SiO2 composite membranes by vacuum filtration.The results show that SiO2 intercalation further improves the water flux without loss of rejection and stability.When SiO2(0.05 mg/mL)is 3 mL,the pure water flux of the RGO/SiO2 composite membrane is as high as 21.1 L/(m2,h·bar)which is about 6 times of that of the pure GO membrane,and the retention rate of Na2SO4 is about 83.7％ .The order of rejection for different salts was R(Na2SO4)＞R(MgSO4)＞R(NaCl)＞R(MgCl2).Therefore,the RGO/SiO2 composite membrane has a certain potential for application in desalination.关键词
氧化石墨烯/二氧化硅/纳滤膜/海水淡化Key words
graphene oxide/silica/nanofiltration membrane/desalination分类
化学化工引用本文复制引用
刘璇,黄朝..RGO/SiO2复合膜的制备及其在海水淡化中的应用[J].上海海洋大学学报,2024,33(5):1292-1298,7.基金项目
国家自然科学基金(51005145,51075258) （51005145,51075258）
上海市科学技术委员会项目(19DZ2254800) （19DZ2254800）
