High-performance pseudocapacitive removal of cadmium via synergistic valence conversion in perovskite-type FeMnO3
文献类型：期刊论文
| 作者 | Xu, Yingsheng1,2; Xiang, Shuhong1,2; Zhang, Xinyuan1,2; Zhou, Hongjian1,2; Zhang, Haimin1,2 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2022-10-05 |
| 卷号 | 439 |
| ISSN号 | 0304-3894 |
| 关键词 | Capacitive deionization Perovskite-type oxides Synergistic valence conversion Pseudocapacitance electrode Cadmium pollution |
| DOI | 10.1016/j.jhazmat.2022.129575 |
| 通讯作者 | Zhou, Hongjian(hjzhou@issp.ac.cn) ; Zhang, Haimin(zhanghm@issp.ac.cn) |
| 英文摘要 | Cadmium pollution is a serious threat for the global drink water and natural environment. Herein, a poly-pyrrole coated dual-metal perovskite-type oxide FeMnO3 (PFMO@PPy) was developed firstly as pseudocapacitive cathode for the reversible capture and release of cadmium ions by asymmetry pseudocapacitive deionization (APCDI) technology, extending the library of CDI electrodes. Our work highlighted several points: (i) PFMO@PPy achieved a maximum Cd-removal capacity of 144.6 mg g(-1), and maintained the retention rate of 93.4% after 15-cycle CDI process for up to 150 h, far beyond other previous work. (ii) PFMO@PPy showed the superior removal ratio (similar to 90%) under different real water environments such as tap water, lake water and the groundwater. (iii) The superior Cd(II) electrosorption and desorption behavior is ascribed to the reversible synergistic valence conversion (Fe3+/Fe-0 and Mn3+/Mn2+), which is confirmed by ex-situ XPS measurement and electrochemical tests. (iv) DFT calculations confirmed the synergistic effect from Mn and Fe elements in perovskite-type bimetallic oxide FeMnO3. This study paves a new way for promising future applications of perovskite-type oxides containing dual Faradic redox-activity for wastewater treatment and environmental remediation. |
| WOS关键词 | CAPACITIVE DEIONIZATION ; METAL-IONS ; ANODES ; OXIDES ; DESALINATION ; POLYPYRROLE ; ADSORPTION ; COMPOSITE ; WATER |
| 资助项目 | National Natural Science Foundation of China[51872291] ; National Natural Science Foundation of China[51872292] ; Key Research and Development Projects of Anhui Province[202104a06020028] ; Collaborative Innovation Program of Hefei Science Center, CAS[2020HSC-CIP012] ; presidential Foundation of Hefei Institutes of Physical Science, Chinese Academy of Sciences[YZJJZX202019] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000831134400002 |
| 资助机构 | National Natural Science Foundation of China ; Key Research and Development Projects of Anhui Province ; Collaborative Innovation Program of Hefei Science Center, CAS ; presidential Foundation of Hefei Institutes of Physical Science, Chinese Academy of Sciences |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/132001]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhou, Hongjian; Zhang, Haimin |
| 作者单位 | 1.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Ctr Environm & Energy Nanomat, Inst Solid State Phys, Key Lab Mat Phys,HFIPS, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Yingsheng,Xiang, Shuhong,Zhang, Xinyuan,et al. High-performance pseudocapacitive removal of cadmium via synergistic valence conversion in perovskite-type FeMnO3[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,439. |
| APA | Xu, Yingsheng,Xiang, Shuhong,Zhang, Xinyuan,Zhou, Hongjian,&Zhang, Haimin.(2022).High-performance pseudocapacitive removal of cadmium via synergistic valence conversion in perovskite-type FeMnO3.JOURNAL OF HAZARDOUS MATERIALS,439. |
| MLA | Xu, Yingsheng,et al."High-performance pseudocapacitive removal of cadmium via synergistic valence conversion in perovskite-type FeMnO3".JOURNAL OF HAZARDOUS MATERIALS 439(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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