Efficient Removal of Toxic Pollutants Over Fe-Co/ZrO2 Bimetallic Catalyst with Ozone
文献类型：期刊论文
| 作者 | Nie, Yulun ; Xing, Shengtao ; Hu, Chun ; Qu, Jiuhui |
| 刊名 | Chemistry
 |
| 出版日期 | 2012 |
| 卷号 | 142期号:8页码:1026-1032 |
| 关键词 | Bimetallic catalyst Ozonation Toxic pollutants Removal Mechanism |
| ISSN号 | 1011-372X |
| 中文摘要 | Fe-Co bimetallic oxides supported on mesoporous zirconia (Fe-Co/ZrO2) was prepared using incipient wetness co-impregnation method and characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and UV-vis diffuse reflectance spectra. Compared with individual component Fe or Co catalysts, Fe-Co/ZrO2 exhibited higher ozonation efficiency for the degradation of the tested toxic pollutants, as demonstrated with the herbicides 2,4-dichlorophenoxyacetic acid and pharmaceutical phenazone, diphenhydramine hydrochloride in aqueous solution. Furthermore, the characterization studies indicated that Fe-Co oxides were highly dispersed on the surface of mesoporous zirconia with multivalent oxidation states. The interfacial electron transfer process was greatly enhanced due to the presence of two redox couples (Fe3+/Fe2+ and Co2+/Co3+) in Fe-Co/ZrO2, which caused the higher catalytic reactivity for ozone decomposition into (OH)-O-aEuro cent radicals, leading to the efficient removal of toxic pollutants in aqueous solution. The catalytic mechanism of pollutants degradation over Fe-Co/ZrO2 with ozone was proposed on the basis of all information obtained under different experimental conditions. The multivalent oxidation states, high dispersion and the synergistic effect of Fe-Co oxides in Fe-Co/ZrO2 enhanced the interfacial electron transfer process, which caused the higher catalytic reactivity for the degradation of toxic pollutants in aqueous solution. |
| WOS记录号 | WOS:000307292800013 |
| 公开日期 | 2014-11-28 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8133]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Nie, Yulun,Xing, Shengtao,Hu, Chun,et al. Efficient Removal of Toxic Pollutants Over Fe-Co/ZrO2 Bimetallic Catalyst with Ozone[J]. Chemistry,2012,142(8):1026-1032. |
| APA | Nie, Yulun,Xing, Shengtao,Hu, Chun,&Qu, Jiuhui.(2012).Efficient Removal of Toxic Pollutants Over Fe-Co/ZrO2 Bimetallic Catalyst with Ozone.Chemistry,142(8),1026-1032. |
| MLA | Nie, Yulun,et al."Efficient Removal of Toxic Pollutants Over Fe-Co/ZrO2 Bimetallic Catalyst with Ozone".Chemistry 142.8(2012):1026-1032. |
入库方式： OAI收割
来源：生态环境研究中心
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