KMS of Research Center for Eco-Environmental Sciences， CAS
| Preparation and evaluation of a high performance Ti3C2Tx-MXene membrane for drinking water treatment | |
Liu, Xun; Graham, Nigel; Yu, Wenzheng ; Shi, Yingxian; Sun, Kening; Liu, Ting
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| 2022-07-15 | |
| Source Publication | JOURNAL OF MEMBRANE SCIENCE
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| ISSN | 0376-7388 |
| Volume | 654Issue:0Pages:120469 |
| Abstract | Due to their susceptibility to oxidation and swelling in water, MXene membranes are difficult to prepare with sufficient stability to be effective in water treatment applications. In addition, MXene membranes display deleterious adsorption effects and methods of preventing adsorption have not been developed adequately yet. In this paper, we describe the preparation of an enhanced membrane by incorporating ascorbic acid into the main body of Ti3C2TX-MXene, and aluminum ion cross-linking of membrane layers. Both ex-situ experimental characterization and density functional theory (DFT) simulations have verified the strong adsorption force between MXene and ascorbic acid. Under the action of cross-linking aluminum ions, the anti-swelling property of the membrane was greatly improved. As a result of the modifications, the membrane exhibited a retention rate of 99.3% for a representative dye, of which the contribution of adsorption was only 7.9%. In addition, the membrane was also able to effectively inhibit the transmembrane transport of sodium chloride and magnesium chloride during forward osmosis. The penetration rate of sodium chloride in 1 h was only 0.065%. More importantly, thanks to the enhanced antioxidant properties, there was no sign of oxidation in the 30-day experiment. While maintaining structural stability, the membrane had a flux that was 30 times that of a comparative graphene oxide membrane. The findings represent an important step forward in the development of a stable, high performance and low-adsorption Ti3C2Tx-MXene membrane. |
| Department | 中国科学院饮用水科学与技术重点实验室 ; 中国科学院饮用水科学与技术重点实验室 |
| Keyword | ION INTERCALATION MXENE NANOSHEETS PURIFICATION TERMINATION CAPACITANCE TECHNOLOGY COMPOSITES REMOVAL ENERGY |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/47893 |
| Collection | 中国科学院饮用水科学与技术重点实验室 |
| Corresponding Author | Liu, Ting |
| Affiliation | 1.Beijing Inst Technol, Sch Chem & Chem Engn, Beijing Key Lab Chem Power Source & Green Catalysi, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Drinking Water Sci & Technol, Beijing 100085, Peoples R China 3.Imperial Coll London, Dept Civil & Environm Engn, London SW7 2AZ, England |
| Recommended Citation GB/T 7714 | Liu, Xun,Graham, Nigel,Yu, Wenzheng,et al. Preparation and evaluation of a high performance Ti3C2Tx-MXene membrane for drinking water treatment[J]. JOURNAL OF MEMBRANE SCIENCE,2022,654(0):120469. |
| APA | Liu, Xun,Graham, Nigel,Yu, Wenzheng,Shi, Yingxian,Sun, Kening,&Liu, Ting.(2022).Preparation and evaluation of a high performance Ti3C2Tx-MXene membrane for drinking water treatment.JOURNAL OF MEMBRANE SCIENCE,654(0),120469. |
| MLA | Liu, Xun,et al."Preparation and evaluation of a high performance Ti3C2Tx-MXene membrane for drinking water treatment".JOURNAL OF MEMBRANE SCIENCE 654.0(2022):120469. |
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| Preparation and eval（6582KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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