High-capacity and high-stability capacitive desalination with dual redox-active MnCo2S4/g-C3N4 heterojunction electrode
文献类型：期刊论文
| 作者 | Xu, Yingsheng1; Quan, Rongxia1; Zhou, Jianguo2; Mao, Hengjian2; Li, Chen1; Ma, Siyao1; Mou, Junteng1; Zhou, Hongjian2 |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 355 |
| 关键词 | Capacitive desalination Redox-active electrode Heterojunction MnCo2S4 g-C3N4 |
| ISSN号 | 1383-5866 |
| DOI | 10.1016/j.seppur.2024.129761 |
| 通讯作者 | Xu, Yingsheng(yinsxu@hbnu.edu.cn) ; Zhou, Hongjian(hjzhou@issp.ac.cn) |
| 英文摘要 | Capacitive deionization (CDI) utilizing dual redox-active electrodes has shown significant promise in desalinating low-concentration brackish waters, which is crucial for addressing global freshwater shortages. However, improvements in salt adsorption capacity and long-term operational stability are still required. In this study, we introduce, for the first time, a binary metal sulfide MnCo2S4/g-C3N4 (MCS-CN) heterojunction as a CDI electrode. The innovative integration of dual redox-active centers and heterojunction structures in the MCS-CN composite electrodes underscores their potential for achieving both high capacity and stability in capacitive desalination applications. The microscopic morphology, crystal structure, pore structure, and surface valence properties of the MCS-CN heterojunction composite materials were extensively characterized using various analytical techniques. In-situ X-ray diffraction, refined ex-situ X-ray photoelectron spectroscopy, three-electrode electrochemical analysis, and theoretical calculations were employed to elucidate the electrosorption and desorption mechanisms of sodium ions with the MCS-CN electrodes and to clarify the enhanced desalination performance of the binary metal sulfide-based heterojunction structure. As a result, the optimal MCS-CN-40 electrode exhibited the highest salt removal capacity of 71.64 mg g(-1) and maintained stable desalination performance over 100 cycles in a 500 mg L-1 NaCl solution. This innovative approach provides a noval perspective for developing heterojunction electrodes with high redox activity and efficient desalination performance. |
| WOS关键词 | DOPED POROUS CARBON ; DEIONIZATION ; NANOPARTICLES ; NANOSHEETS ; COMPOSITE ; STORAGE ; WATER |
| 资助项目 | National Key R & D Pro-gram of China[2022YFC2904303] ; National Natural Science Foundation of China[52400078] ; Natural Science Foun-dation of Hubei Province, China[2024AFB104] ; HFIPS Director's Fund[YZJJ-GGZX-2022-01] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001322538700001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key R & D Pro-gram of China ; National Natural Science Foundation of China ; Natural Science Foun-dation of Hubei Province, China ; HFIPS Director's Fund |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135583]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Xu, Yingsheng; Zhou, Hongjian |
| 作者单位 | 1.Hubei Normal Univ, Coll Chem & Chem Engn, Hubei Key Lab Pollutant Anal & Reuse Technol, Huangshi 435002, Peoples R China 2.Chinese Acad Sci, Key Lab Mat Phys, Anhui Key Lab Nanomat & Nanotechnol, Inst Solid State Phys,Hefei Inst Phys Sci, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Yingsheng,Quan, Rongxia,Zhou, Jianguo,et al. High-capacity and high-stability capacitive desalination with dual redox-active MnCo2S4/g-C3N4 heterojunction electrode[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2025,355. |
| APA | Xu, Yingsheng.,Quan, Rongxia.,Zhou, Jianguo.,Mao, Hengjian.,Li, Chen.,...&Zhou, Hongjian.(2025).High-capacity and high-stability capacitive desalination with dual redox-active MnCo2S4/g-C3N4 heterojunction electrode.SEPARATION AND PURIFICATION TECHNOLOGY,355. |
| MLA | Xu, Yingsheng,et al."High-capacity and high-stability capacitive desalination with dual redox-active MnCo2S4/g-C3N4 heterojunction electrode".SEPARATION AND PURIFICATION TECHNOLOGY 355(2025). |
入库方式： OAI收割
来源：合肥物质科学研究院
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