膜
渗透
石墨烯
聚丙烯腈
插层(化学)
材料科学
化学工程
渗透
氧化物
海水淡化
纳米
纳米技术
聚合物
复合材料
化学
无机化学
冶金
工程类
生物化学
作者
Weiming Zhang,Minxian Shi,Zhongxuan Heng,Weiming Zhang,Bingcai Pan
出处
期刊:Nano Letters
[American Chemical Society]
日期:2020-09-02
卷期号:20 (10): 7327-7332
被引量:38
标识
DOI:10.1021/acs.nanolett.0c02724
摘要
The intercalation strategy is successfully applied in tuning the interlayer distance of 2D membranes for efficient desalination and ion sieving. However, it is difficult to pursue a intercalant that is few nanometers in size and suitable for further chemical modification . Here, for the first time, we report the intercalation of soft particles−polyacrylonitrile gel particles (PAN GPs) inside the graphene oxide (GO) membranes, which allows for a tunable interlayer distance via the deformation of soft particles. Furthermore, the base-induced hydrophobic/hydrophilic structure of PAN GPs facilitates the water diffusion through the GO membrane. A fast and selective water permeation was observed through separation Cu-EDTA2–from water, with the permeance of 4–13 times higher than the reported 2D membranes. Intercalation of soft particles represents a promising strategy to fabricate high-performance 2D membranes.
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