| Photocatalytic Nitrogen Oxide Removal Activity Improved Step-by-Step through Serial Multistep Cu Modifications | |
| Zhao, Liaoliao1; Dong, Guohui1; Zhang, Li2; Lu, Yanfeng3; Huang, Yu3 | |
| 通讯作者 | Dong, Guohui(dongguohui@sust.edu.cn) |
| 2019-03-13 | |
| 发表期刊 | ACS APPLIED MATERIALS & INTERFACES
 |
| ISSN | 1944-8244 |
| 卷号 | 11期号:10页码:10042-10051 |
| 摘要 | Previous research has evidenced the insufficient efficiency in a one-step modified photocatalyst for NO removal. In this article, a serial multistep modification was explored to improve the NO removal activity of g-C3N4. In the experiment, a g-C3N4 photocatalyst has been successfully modified by Cu elements three times on one continuous process. Meanwhile, results showed that the serial multistep modifications could improve NO removal activity by g-C3N4 step by step. The main active species in the g-C3N4 system were h(+) and O-center dot(2)- but they were h(+) and (OH)-O-center dot in the three-modified g-C3N4 systems. Moreover, different mechanisms of activity improvement caused by the modified Cu in the serial-modified samples were identified. In the first modified sample, Cu2+ can decompose H2O2 molecules into (OH)-O-center dot via a Fenton-like reaction. In the second modified sample, the H2O2 molecule is activated by Cu-0 and decomposed into (OH)-O-center dot by the generated photoelectrons. After the third modification, the synergistic effects of the N vacancy and Cu-0 were identified, which significantly enhanced the photocatalytic NO removal activity of g-C3N4. This study proposed that the serial multistep modification can be a promising method to improve the NO removal activity of g-C3N4 stage-by-stage. |
| 关键词 | surface modification Cu modification phocatalysis NO removal g-C3N4 |
| DOI | 10.1021/acsami.9b00111 |
| 关键词[WOS] | NO REMOVAL ; G-C3N4 ; EFFICIENT ; AIR ; OXIDATION ; DEGRADATION ; NANOSHEETS ; MECHANISM ; FLOW |
| 收录类别 | SCI ; SCI |
| 语种 | 英语 |
| 资助项目 | National Nature Science Foundation of China[21603271] ; National Nature Science Foundation of China[21876104] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science |
| 项目资助者 | National Nature Science Foundation of China |
| WOS类目 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| WOS记录号 | WOS:000461538000043 |
| 出版者 | AMER CHEMICAL SOC |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/14244 |
| 专题 | 粉尘与环境研究室 |
| 通讯作者 | Dong, Guohui |
| 作者单位 | 1.Shaanxi Univ Sci & Technol, Sch Environm Sci & Engn, Xian 710021, Shaanxi, Peoples R China 2.Shaanxi Univ Sci & Technol, Sch Mat Sci & Engn, Xian 710021, Shaanxi, Peoples R China 3.Chinese Acad Sci, Key Lab Aerosol Chem & Phys, Inst Earth Environm, Xian 710061, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Liaoliao,Dong, Guohui,Zhang, Li,et al. Photocatalytic Nitrogen Oxide Removal Activity Improved Step-by-Step through Serial Multistep Cu Modifications[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(10):10042-10051. |
| APA | Zhao, Liaoliao,Dong, Guohui,Zhang, Li,Lu, Yanfeng,&Huang, Yu.(2019).Photocatalytic Nitrogen Oxide Removal Activity Improved Step-by-Step through Serial Multistep Cu Modifications.ACS APPLIED MATERIALS & INTERFACES,11(10),10042-10051. |
| MLA | Zhao, Liaoliao,et al."Photocatalytic Nitrogen Oxide Removal Activity Improved Step-by-Step through Serial Multistep Cu Modifications".ACS APPLIED MATERIALS & INTERFACES 11.10(2019):10042-10051. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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