Partial-Redox-Promoted Mn Cycling of Mn(II)-Doped Heterogeneous Catalyst for Efficient H2O2-Mediated Oxidation
| العنوان: | Partial-Redox-Promoted Mn Cycling of Mn(II)-Doped Heterogeneous Catalyst for Efficient H2O2-Mediated Oxidation |
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| المؤلفون: | Qiang Gao, Bo Han, Haitao Li, Kaisheng Xia, Chenggang Zhou, Zheng-Hui Ren |
| المصدر: | ACS Applied Materials & Interfaces. 9:371-380 |
| بيانات النشر: | American Chemical Society (ACS), 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Chemistry, Doping, Composite number, Nanotechnology, 02 engineering and technology, Nanoflower, 010402 general chemistry, 021001 nanoscience & nanotechnology, Heterogeneous catalysis, 01 natural sciences, Redox, 0104 chemical sciences, Catalysis, Electron transfer, Chemical engineering, General Materials Science, Density functional theory, 0210 nano-technology |
| الوصف: | The development of a heterogeneous catalyst with high catalytic activity and durability for H2O2-mediated oxidation is one of the most important industrial and environmental issues. In this study, a Mn(II)-doped TiO2 heterogeneous catalyst was developed for H2O2-mediated oxidation. The TiO2 substrate-dependent partial-redox behavior of Mn was identified on the basis of our density functional theory simulations. This unique redox cycle was induced by a moderate electron transfer from Ti to Mn, which compensated for the electron loss of Mn and finally resulted in a high-efficiency cycling of Mn between its oxidized and reduced forms. In light of the theoretical results, a Mn(II)-doped TiO2 composite with well-defined morphology and large surface area (153.3 m2 g–1) was elaborately fabricated through incorporating Mn(II) ions into a TiO2 nanoflower, and further tested as the catalyst for oxidative degradation of organic pollutants in the presence of H2O2. Benefiting from the remarkable textural features and ... |
| تدمد: | 1944-8252 1944-8244 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::14885a5016238e8d64bfa534a76a9de8Test https://doi.org/10.1021/acsami.6b12445Test |
| رقم الانضمام: | edsair.doi...........14885a5016238e8d64bfa534a76a9de8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19448252 19448244 |
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