Cross-linking modification with diamine monomers to enhance desalination performance of graphene oxide membranes
文献类型：期刊论文
| 作者 | Qian, Yunlong; Zhou, Chen; Huang, Aisheng |
| 刊名 | CARBON
 |
| 出版日期 | 2018 |
| 卷号 | 136页码:28-37 |
| 关键词 | Mixed Matrix Membranes Functionalized Graphene Seawater Desalination Framework Membranes Pervaporation Water Dehydration Separation Energy Electrodialysis |
| 英文摘要 | Two kinds of diamine molecules, including 1, 4-cyclohyxanediamine (CDA) and p-phenylenediamine (pPDA), were used as cross-linking for modification of graphene oxide (GO) nanosheets to prepare three-dimensional graphene oxide framework (GOF). Thereafter, graphene oxide composite membranes (GOCMs) were prepared on the polydopamine (PDA) modified alpha-Al2O3 tubes via vacuum filtration of GOF suspension. The separation performance of the GOCMs was tested for seawater desalination by pervaporation. The cross-linking modification, membrane thickness, operation temperature, feed concentration and PDA modification of alpha-Al2O3 tube have great effect on the separation performance of the GOCMs. Attributing to the enhancement of d-spacing and surface hydrophilicity after CDA modification, the CDA-based GOCM (CDA-GOCM) shows a higher water flux (20.1 kg m(-2) h(-1) with ion rejection of 99.9%) for desalination of 3.5 wt% seawater at 90 degrees C, which is higher than that of GO membrane (11.4 kg m(-2) h(-1) with ion rejection of 99.9%). However, since the hydrophilicity of the GO markedly decreases after pPDA modification, the pPDA-based GOCM (pPDA-GOCM) show a lower water flux (10.7 kg m(-2) h(-1) with ion rejection of 99.8%) at 90 degrees C. Further, the CDA-GOCM prepared on the PDA-modified alpha-Al2O3 tubes displays high stability for desalination of 3.5 wt% seawater. (C) 2018 Elsevier Ltd. All rights reserved. |
| 学科主题 | Materials Science |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/17233]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Qian, Yunlong,Zhou, Chen,Huang, Aisheng. Cross-linking modification with diamine monomers to enhance desalination performance of graphene oxide membranes[J]. CARBON,2018,136:28-37. |
| APA | Qian, Yunlong,Zhou, Chen,&Huang, Aisheng.(2018).Cross-linking modification with diamine monomers to enhance desalination performance of graphene oxide membranes.CARBON,136,28-37. |
| MLA | Qian, Yunlong,et al."Cross-linking modification with diamine monomers to enhance desalination performance of graphene oxide membranes".CARBON 136(2018):28-37. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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