Mg-Fe-Al-O spinel: Preparation and application as a heterogeneous photo-Fenton catalyst for degrading Rhodamine B
文献类型：期刊论文
| 作者 | Zhang, Jiayu1,2; Yan, Mingwei2; Sun, Guangchao1,2; Li, Xiang1,2; Hao, Bianlei1,2; Liu, Kaiqi1,2 |
| 刊名 | Chemosphere
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 304 |
| 关键词 | Aluminum compounds - Catalyst activity - Degradation - Efficiency - Image enhancement - Iron compounds - Magnesium compounds - Rhodium compounds - Sintering |
| ISSN号 | 456535 |
| DOI | 10.1016/j.chemosphere.2022.135318 |
| 英文摘要 | It is an urgent need to develop new environmentally friendly spinel ferrites with high catalytic efficiency. In this work, a series of Mg鈥揊e鈥揂l鈥揙 spinels with different ratios of Mg/Al were successfully synthesized by the reaction sintering method and were used as a heterogeneous photo-Fenton catalyst for degradation of Rhodamine B (RhB). The effect of different ratios of Mg/Al on the properties of Mg鈥揊e鈥揂l鈥揙 spinel was characterized and analyzed through a range of advanced characterization techniques and DFT calculations. The influence factors on the photo-Fenton reaction catalyzed by Mg鈥揊e鈥揂l鈥揙 spinels were systematically investigated. The results showed that the prepared Mg鈥揊e鈥揂l鈥揙 spinels had larger lattice parameters, wider bandgap, and stronger magnetism, with the Mg content increased. Among them, Mg-9 (Mg0.88Fe1.88Al0.23O4) had the best catalytic performance in the photo-Fenton reaction. The degradation efficiency of RhB reached 98.45%, and the TOC removal efficiency was 83.47%. The elemental valence and PDOS of Mg-9 (Mg0.88Fe1.88Al0.23O4) spinels were closer to MgFe2O4. The photo-generated holes could directly oxidize water and hydroxyl to generate reactive oxygen species 路OH, improving the catalytic activity. 漏 2022 Elsevier Ltd |
| 学科主题 | Oxidation |
| 项目编号 | This work was financially supported by the National Key R&D Program of China (Grant No.: 2019YFC1904300 ), the National Natural Science Foundation of China (Grant No. 22005309 ), and the Fund of State Key Laboratory of Multiphase Complex Systems (No. MPCS-2021-C-01 ). |
| 出版者 | Elsevier Ltd |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/61180]  |
| 作者单位 | 1.University of Chinese Academy of Sciences, Beijing; 100049, China 2.State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing; 100190, China |
| 推荐引用方式 GB/T 7714 | Zhang, Jiayu,Yan, Mingwei,Sun, Guangchao,et al. Mg-Fe-Al-O spinel: Preparation and application as a heterogeneous photo-Fenton catalyst for degrading Rhodamine B[J]. Chemosphere,2022,304. |
| APA | Zhang, Jiayu,Yan, Mingwei,Sun, Guangchao,Li, Xiang,Hao, Bianlei,&Liu, Kaiqi.(2022).Mg-Fe-Al-O spinel: Preparation and application as a heterogeneous photo-Fenton catalyst for degrading Rhodamine B.Chemosphere,304. |
| MLA | Zhang, Jiayu,et al."Mg-Fe-Al-O spinel: Preparation and application as a heterogeneous photo-Fenton catalyst for degrading Rhodamine B".Chemosphere 304(2022). |
入库方式： OAI收割
来源：过程工程研究所
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