Oxygen Vacancy Generation and Stabilization in CeO2-x by Cu Introduction with Improved CO2 Photocatalytic Reduction Activity
文献类型：期刊论文
| 作者 | Wang, Min; Shen, Meng; Jin, Xixiong; Tian, Jianjian; Li, Mengli; Zhou, Yajun; Zhang, Lingxia; Li, Yongsheng; Shi, Jianlin |
| 刊名 | ACS CATALYSIS
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 9期号:5页码:4573 |
| 关键词 | photocatalysis CeO2 CO2 reduction Cu introduction oxygen vacancy |
| ISSN号 | 2155-5435 |
| DOI | 10.1021/acscatal.8b03975 |
| 文献子类 | Article |
| 英文摘要 | Introducing O vacancies into the lattice of a semiconductor photocatalyst can alter its intrinsic electronic properties and band gap, thus enhancing the visible light absorption, promoting the separation/transfer of photogenerated charge carriers, and resultantly elevating the photocatalytic activity of oxide semiconductors. Moreover, O vacancies can help adsorb and activate CO2 on photocatalyst surfaces, which, however, are prone to being filled by O atoms during the photoreduction reaction. In this work, Cu was introduced to increase the O vacancy concentration in CeO2-x and promote the photocatalytic activity of CeO2-x The sample Cu/CeO2-x -0.1 showed the highest photocatalytic activity with a CO yield of 8.25 mu mol g(-1) under 5 h irradiation, which is similar to 26 times that on CeO2-x. According to the analysis of Raman and X-ray photoelectron spectroscopy (XPS) spectra, it has been evidenced that Cu introduction benefits the chemical stabilization of O vacancies in CeO2-x during photocatalytic CO2 reduction, which is responsible for the improved and sustained photocatalytic activity. |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27142]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Wang, Min,Shen, Meng,Jin, Xixiong,et al. Oxygen Vacancy Generation and Stabilization in CeO2-x by Cu Introduction with Improved CO2 Photocatalytic Reduction Activity[J]. ACS CATALYSIS,2019,9(5):4573. |
| APA | Wang, Min.,Shen, Meng.,Jin, Xixiong.,Tian, Jianjian.,Li, Mengli.,...&Shi, Jianlin.(2019).Oxygen Vacancy Generation and Stabilization in CeO2-x by Cu Introduction with Improved CO2 Photocatalytic Reduction Activity.ACS CATALYSIS,9(5),4573. |
| MLA | Wang, Min,et al."Oxygen Vacancy Generation and Stabilization in CeO2-x by Cu Introduction with Improved CO2 Photocatalytic Reduction Activity".ACS CATALYSIS 9.5(2019):4573. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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