Characterization and reactivity of MnOx supported on mesoporous zirconia for herbicide 2,4-D mineralization with ozone
文献类型：期刊论文
| 作者 | Xing, Shengtao ; Hu, Chun ; Qu, Jiuhui ; He, Hong ; Yang, Min |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2008-05-01 |
| 卷号 | 42期号:9页码:3363-3368 |
| 英文摘要 | Manganese oxide was supported on mesoporous zirconia (MnOx/ MZIW) by wet impregnation, drying, water washing, and calcinations with manganese acetate tetrahydrate as the metal precursor for the first time and was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Fourier transform infrared spectra (FTIR), temperature-programmed reduction (TPR), temperature-programmed oxygen desorption (O-2-TPD), and UV-vis diffuse reflectance spectra (UV-vis DRS) measurements. The catalyst was found to be highly effective for the mineralization of 2,4-dichlorophenoxyacetic acid (2,4-D) aqueous solution with ozone. The characterization studies showed that nonstoichiometrically MnOx was highly dispersed on mesoporous zirconia by the strong interaction of the [Mn(H2O)(6)](2+) complex with surface hydroxyls of the support. Moreover, the multivalence oxidation states of MnOx enhanced the electron transfer, causing the higher catalytic reactivity. On the basis of all information obtained under different experimental conditions, MnOx/MZIW enhanced the mineralization of 2,4-D by the formation of (OH)-O-center dot radicals resulting from the catalytic decomposition of ozone. |
| WOS记录号 | WOS:000255444100044 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22217]  |
| 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 | Xing, Shengtao,Hu, Chun,Qu, Jiuhui,et al. Characterization and reactivity of MnOx supported on mesoporous zirconia for herbicide 2,4-D mineralization with ozone[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2008,42(9):3363-3368. |
| APA | Xing, Shengtao,Hu, Chun,Qu, Jiuhui,He, Hong,&Yang, Min.(2008).Characterization and reactivity of MnOx supported on mesoporous zirconia for herbicide 2,4-D mineralization with ozone.ENVIRONMENTAL SCIENCE & TECHNOLOGY,42(9),3363-3368. |
| MLA | Xing, Shengtao,et al."Characterization and reactivity of MnOx supported on mesoporous zirconia for herbicide 2,4-D mineralization with ozone".ENVIRONMENTAL SCIENCE & TECHNOLOGY 42.9(2008):3363-3368. |
入库方式： OAI收割
来源：生态环境研究中心
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