Engineering nano-porous graphene oxide by hydroxyl radicals
文献类型：期刊论文
| 作者 | Yu, CH; Zhang, BW; Yan, F; Zhao, JF; Li, JH; Li, LF; Li, JY |
| 刊名 | CARBON
 |
| 出版日期 | 2016 |
| 卷号 | 105期号:-页码:291—296 |
| 关键词 | MEMBRANES WATER DEGRADATION IRRADIATION PERMEATION RADIATION PHASE |
| ISSN号 | 0008-6223 |
| 通讯作者 | Li, JY (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, CAS Ctr Excellence TMSR Energy Syst, Jialuo Rd 2019, Shanghai 201800, Peoples R China. |
| 英文摘要 | Graphene oxide (GO) has recently been identified as an excellent candidate for membrane science, but the relatively small number of channels for species to transport across the laminated GO membranes is one of the major limitations for the membrane permeability. Thus, engineering porous structures on GO sheets, such as pores and notched edges, is a promising solution to increase channels across the laminate when GO sheets are stacked into membranes. However, a controllable approach for constructing porous GO sheets requires further development. Here, we demonstrated that nano-porous GO sheets with well-controlled nano-pores and 'lacelike' edges were generated after 'etching' GO sheets by hydroxyl radicals (OH center dot), which were generated from water radiolysis by gamma-irradiation. Furthermore, the average diameter of nano-pores can be easily tuned from 3.7 to 13.6 nm by varying the 'etching' time. Carbon atoms in GO sheets where oxygen-containing groups were bonded to could be oxidized and removed by OH center dot radicals, leaving the defects in GO sheets. Then, the formation mechanism for the porous structures and the oxidation behavior of GO sheets are systematically investigated. These results should provide a new approach for engineering fluidic channels in GO membranes for future applications in nanofiltration and molecular separation. (C) 2016 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000376607200034 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/25711]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Yu, CH,Zhang, BW,Yan, F,et al. Engineering nano-porous graphene oxide by hydroxyl radicals[J]. CARBON,2016,105(-):291—296. |
| APA | Yu, CH.,Zhang, BW.,Yan, F.,Zhao, JF.,Li, JH.,...&Li, JY.(2016).Engineering nano-porous graphene oxide by hydroxyl radicals.CARBON,105(-),291—296. |
| MLA | Yu, CH,et al."Engineering nano-porous graphene oxide by hydroxyl radicals".CARBON 105.-(2016):291—296. |
入库方式： OAI收割
来源：上海应用物理研究所
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