Highly efficient degradation of acid orange II on a defect-enriched Fe-based nanoporous electrode by the pulsed square-wave method
文献类型：期刊论文
| 作者 | Chi, Yuchen2; Chen, Feng2; Wang, Hangning2; Qin, Fengxiang2; Zhang, Haifeng1 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021-11-30 |
| 卷号 | 92页码:40-50 |
| 关键词 | Amorphous alloy Nanoporous electrode Defects, Azo dye Electrochemical degradation Pulsed square-wave potential |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2021.03.041 |
| 通讯作者 | Qin, Fengxiang(fengxiangqin@njust.edu.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn) |
| 英文摘要 | The degradation of acid orange II (AO II) by a nanoporous Fe-Si-B (NP-FeSiB) electrode under the pulsed square-wave potential has been investigated in this research. Defect-enriched NP-FeSiB electrode was fabricated through dealloying of annealed Fe76Si9B15 amorphous ribbons. The results of UV-vis spectra and FTIR indicated that AO II solution was degraded efficiently into unharmful molecules H2O and CO2 on NP-FeSiB electrode within 5 mins under the square-wave potential of +/- 1.5 V. The degradation efficiency of the NP-FeSiB electrode remains 98.9% even after 5-time recycling. The large amount of active surface area of the nanoporous FeSiB electrode with lattice disorders and stacking faults, and alternate electrochemical redox reactions were mainly responsible for the excellent degradation performance of the NP-FeSiB electrode. The electrochemical pulsed square-wave process accelerated the redox of Fe element in Fe-based nanoporous electrode and promoted the generation of hydroxyl radicals (center dot OH) with strong oxidizability as predominant oxidants for the degradation of azo dye molecules, which was not only beneficial to improving the catalytic degradation activity, but also beneficial to enhancing the reusability of the nanoporous electrode. This work provides a highly possibility to efficiently degrade azo dyes and broadens the application fields of nanoporous metals. (C) 2021 Published by Elsevier Ltd on behalf of Chinese Society for Metals. |
| 资助项目 | Shichangxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences ; National Natural Science Foundation of China[51790484] ; National Natural Science Foundation of China[51671106] ; Chinese Academy of Sciences[ZDBS-LY-JSC023] ; Fundamental Research Funds for the Central Uni-versities[30919011404] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000718790900005 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | Shichangxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Fundamental Research Funds for the Central Uni-versities |
| 源URL | [http://ir.imr.ac.cn/handle/321006/167350]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Qin, Fengxiang; Zhang, Haifeng |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Nanjing Univ Sci & Technol, Sch Mat Sci & Engn, Nanjing 210094, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chi, Yuchen,Chen, Feng,Wang, Hangning,et al. Highly efficient degradation of acid orange II on a defect-enriched Fe-based nanoporous electrode by the pulsed square-wave method[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,92:40-50. |
| APA | Chi, Yuchen,Chen, Feng,Wang, Hangning,Qin, Fengxiang,&Zhang, Haifeng.(2021).Highly efficient degradation of acid orange II on a defect-enriched Fe-based nanoporous electrode by the pulsed square-wave method.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,92,40-50. |
| MLA | Chi, Yuchen,et al."Highly efficient degradation of acid orange II on a defect-enriched Fe-based nanoporous electrode by the pulsed square-wave method".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 92(2021):40-50. |
入库方式： OAI收割
来源：金属研究所
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