Controlling reduction degree of graphene oxide membranes for improved water permeance
文献类型：期刊论文
| 作者 | Zhang, Q; Qian, XT; Thebo, KH; Cheng, HM; Ren, WC |
| 刊名 | SCIENCE BULLETIN
 |
| 出版日期 | 2018-06-30 |
| 卷号 | 63期号:12页码:788-794 |
| 关键词 | Graphene oxide Reduction Separation membrane Water permeance |
| ISSN号 | 2095-9273 |
| DOI | 10.1016/j.scib.2018.05.015 |
| 英文摘要 | Tailoring the pore structure and surface chemistry of graphene-based laminates is essentially important for their applications as separation membranes. Usually, pure graphene oxide (GO) and completely reduced GO (rGO) membranes suffer from low water permeance because of the lack of pristine graphitic sp(2) domains and very small interlayer spacing, respectively. In this work, we studied the influence of reduction degree on the structure and separation performance of rGO membranes. It was found that weak reduction retains the good dispersion and hydrophilicity of GO nanosheets. More importantly, it increases the number of pristine graphitic sp(2) domains in rGO nanosheets while keeping the large interlayer spacing of the GO membranes in most regions at the same time. The resultant membranes show a high water permeance of 56.3 Lm (2) h (1) bar (1), which is about 4 times and over 10(4) times larger than those of the GO and completely reduced rGO membranes, respectively, and high rejection over 95% for various dyes. Furthermore, they show better structure stability and more superior separation performance than GO membranes in acid and alkali environments. (C) 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved. |
| 学科主题 | Multidisciplinary Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000437398800012 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/80145]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Tsinghua Univ, TBSI, Shenzhen 518055, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Q,Qian, XT,Thebo, KH,et al. Controlling reduction degree of graphene oxide membranes for improved water permeance[J]. SCIENCE BULLETIN,2018,63(12):788-794. |
| APA | Zhang, Q,Qian, XT,Thebo, KH,Cheng, HM,&Ren, WC.(2018).Controlling reduction degree of graphene oxide membranes for improved water permeance.SCIENCE BULLETIN,63(12),788-794. |
| MLA | Zhang, Q,et al."Controlling reduction degree of graphene oxide membranes for improved water permeance".SCIENCE BULLETIN 63.12(2018):788-794. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。