Effect of oxygen plasma treatment on the nanofiltration performance of reduced graphene oxide/cellulose nanofiber composite membranes

作     者：Shabin Mohammed Hanaa MHegab Ranwen Ou Shasha Liu Hongyu Ma Xiaofang Chen Tam Sridhar Huanting Wang Shabin Mohammed;Hanaa M.Hegab;Ranwen Ou;Shasha Liu;Hongyu Ma;Xiaofang Chen;Tam Sridhar;Huanting Wang

作者机构：Department of Chemical EngineeringMonash UniversityVIC3800Australia College of the Environment&EcologyXiamen UniversityXiamenFujian361005China 

出 版 物：《Green Chemical Engineering》 (绿色化学工程（英文）)

年 卷 期：2021年第2卷第1期

页      面：122-131页

核心收录：

学科分类：080706[工学-化工过程机械] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0822[工学-轻工技术与工程] 0702[理学-物理学] 

基　　金：the Australian Research Council(Project No.IH170100009) 

主　　题：Graphene oxide Membrane Nanofiltration Cellulose nanofibers Oxygen plasma treatment 

摘      要：Graphene based nanosheets have been widely used as building blocks for fabrication of superior separation membrane for water *** particular,membranes made of reduced graphene oxide(rGO)show better stability compared with graphene oxide(GO).However,densely stacked of rGO often results in low water *** this study,cellulose nanofibers(CNFs)were incorporated into the rGO laminates by vacuum filtration of dilute GO/CNF solution and thermal reduction at 150C for 1.5 *** resulting rGO/CNF membrane was treated with oxygen plasma for 1–4 min to create nanopores on the membrane surface for the purpose of enhancing nano-filtration *** results showed that the optimum membrane performance was obtained by using the equal amount of GO(31.83 mg m^(-2))and CNFs accompanied by 3 min of plasma treatment,exhibiting a pure water permeance of 37.23.9 L m^(-2)h^(-1)bar^(-1)maintaining a rejection above 90%for Acid Fuchsin(1.2×1.1 nm),Rose Bengal(1.5×1.2 nm)and Brilliant Blue(2.2×1.7 nm).