Regulating the Interlayer Spacing of Graphene Oxide Membranes and Enhancing their Stability by Use of PACl
文献类型：期刊论文
| 作者 | Liu, Ting; Tian, Long; Graham, Nigel; Yang, Bing; Yu, Wenzheng ; Sun, Kening
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| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
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| 出版日期 | 2019-10-15 |
| 卷号 | 53期号:20页码:11949-11959 |
| ISSN号 | 0013-936X |
| 英文摘要 | Graphene oxide (GO) is an ideal membrane material for water treatment due to its outstanding physicochemical properties and unique lamellar structure. However, the separation performance and practical application of GO membranes are mainly affected by the interlayer spacing and stability in aqueous solutions. Here, we report a novel and facile approach to fabricating GO membranes with adjustable interlayer spacing and high stability in aqueous solutions through cross-linking with polyaluminum chloride (PACl). With this approach, the lamellar spacing can be adjusted by changing the OH/Al ratios (B values) of the PACl, and the GO nanosheets can be tightly bonded by the strong electrostatic effect that PACl provides between them. The average interlayer spacing of the GO layer could be varied approximately in the range of 0.80-1.09 nm. The PACl-GO membranes demonstrated excellent stability in water and inorganic/organic solutions when the concentration of PACl was 0.1, 1, and 10 mM, remaining unchanged for at least 2 weeks. Moreover, the PACl-GO membranes featured exceptional sieving capabilities for model and natural organic substrates, while it was also observed that increasing the interlayer spacing of the PACl-GO membranes increased both the membrane flux and the separation performance of organic matter. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42668]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 作者单位 | 1.Beijing Inst Technol, Sch Chem & Chem Engn, Beijing 100081, Peoples R China 2.Imperial Coll London, Dept Civil & Environm Engn, South Kensington Campus, London SW7 2AZ, England 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Ting,Tian, Long,Graham, Nigel,et al. Regulating the Interlayer Spacing of Graphene Oxide Membranes and Enhancing their Stability by Use of PACl[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2019,53(20):11949-11959. |
| APA | Liu, Ting,Tian, Long,Graham, Nigel,Yang, Bing,Yu, Wenzheng,&Sun, Kening.(2019).Regulating the Interlayer Spacing of Graphene Oxide Membranes and Enhancing their Stability by Use of PACl.ENVIRONMENTAL SCIENCE & TECHNOLOGY,53(20),11949-11959. |
| MLA | Liu, Ting,et al."Regulating the Interlayer Spacing of Graphene Oxide Membranes and Enhancing their Stability by Use of PACl".ENVIRONMENTAL SCIENCE & TECHNOLOGY 53.20(2019):11949-11959. |
入库方式： OAI收割
来源：生态环境研究中心
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