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Enhanced photocatalytic oxidation of NO over g-C3N4-TiO2 under UV and visible light
文献类型：期刊论文
| 作者 | Wang, Caixia; He, Hong; Ma, Jinzhu |
| 刊名 | APPLIED CATALYSIS B-ENVIRONMENTAL
 |
| 出版日期 | 2016-05-05 |
| 卷号 | 184页码:28-34 |
| 关键词 | Tio2 Graphitic-c3n4 Photocatalysis Nox Removal Radical Species |
| DOI | 10.1016/j.apcatb.2015.11.013 |
| 英文摘要 | In this work, graphitic carbon nitride-titanium dioxide (g-C3N4-TiO2) was successfully prepared by a facile calcination route utilizing commercial P25 and melamine as the precursors. The as-prepared g-C3N4/TiO2 photocatalysts were characterized systematically to elucidate their morphological structure and physicochemical properties. The photocatalytic performance of g-C3N4-TiO2 composites was investigated for the removal of NOx in air. At the optimal g-C3N4 content (similar to 15 wt%, labeled as M400), the conversion of NOx was 27%, which is higher than that of pure P25 (17%) and g-C3N4 (7%) under visible light. The activity of M400 was also enhanced under UV light. However, a mechanically mixed g-C3N4 and TiO2 sample (with the content of g-C3N4 the same as M400, labeled as MO + g-C3N4) did not improve the conversion of NOx. Therefore, the interaction of g-C3N4 and P25 is important for the activity. EPR results indicated that center dot O-2(-) is the main active species for NO oxidation to NO3- under visible and UV light, which is responsible for the difference in activity between M400 and M0 + g-C3N4. The present study can improve our understanding of NO removal on the photocatalyst surface and the mechanism for the activity enhancement by the formation of g-C3N4-TiO2. (C) 2015 The Authors. Published by Elsevier B.V. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36232]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Caixia,He, Hong,Ma, Jinzhu. Enhanced photocatalytic oxidation of NO over g-C3N4-TiO2 under UV and visible light[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2016,184:28-34. |
| APA | Wang, Caixia,He, Hong,&Ma, Jinzhu.(2016).Enhanced photocatalytic oxidation of NO over g-C3N4-TiO2 under UV and visible light.APPLIED CATALYSIS B-ENVIRONMENTAL,184,28-34. |
| MLA | Wang, Caixia,et al."Enhanced photocatalytic oxidation of NO over g-C3N4-TiO2 under UV and visible light".APPLIED CATALYSIS B-ENVIRONMENTAL 184(2016):28-34. |
入库方式： OAI收割
来源：生态环境研究中心
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