天津工业大学学报2019，Vol.38Issue(1)：7-11,5.DOI:10.3969/j.issn.1671-024x.2019.01.002
界面自组装法制备高性能氧化石墨烯膜
Praparation of high performance GO membrane by interface self-assembly
摘要
Abstract
To prepare reliable and accurate graphene oxide (GO) membrane for molecular sieving, the interface self-assembly method is adopted to prepare GO membranes with more compact interlayer structure. This method can solve the problem that the contradictory relationship between the separation performance and flux caused by thickness control when tuning the performance of GO membrane. The experimental results showed that the interface self-assembly method can achieve closer interlayer structure compared with filtration self-assembly. Under the condition of similar chemical environment, the interlayer spacing can reach about 0.75 nm, which is reduced0.10 nm than that of filtration self-assembly GO membrane. The formation mechanism and rate are the main factors influencing the interlayer structure. The desalting experiment of the membrane for metallic cations/water solution showed that the rejection rate of the interface self-assembled GO membrane for Mg2+ was about 70％, which was 1.3 times of the self-assembly membrane.关键词
氧化石墨烯膜/界面自组装/紧密层间结构/脱盐Key words
graphene oxide membrane/interface self-assembly/compact interlayer structure/desalination分类
化学化工引用本文复制引用
李振环,张永志..界面自组装法制备高性能氧化石墨烯膜[J].天津工业大学学报,2019,38(1):7-11,5.基金项目
国家自然科学基金资助项目(21676202,21376177) （21676202,21376177）
