Photocatalytic CO2 reduction to CH4 on iron porphyrin supported on atomically thin defective titanium dioxide
文献类型：期刊论文
| 作者 | Wu, Yiwen; Yan, Li; Yu, Yaqin; Jing, Chuanyong |
| 刊名 | CATALYSIS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021-09-21 |
| 卷号 | 11期号:18页码:6103-6111 |
| ISSN号 | 2044-4753 |
| 英文摘要 | Photocatalytic CO2 reduction to CH4 is a promising strategy to solve the greenhouse effect and energy shortage problems. However, its application has been restricted by its low efficiency and poor selectivity. Herein, atomically thin defective TiO2 is modified with iron tetraphenylporphyrin (FeTPP) to reinforce the selectivity of CO2 reduction. The synthesized Fe-TiO2-x photocatalyst exhibits a CH4 production rate of 20.48 mu mol g(-1) h(-1) and a CH4 selectivity of 56.1% under visible light irradiation. Oxygen vacancies (OVs) of defective TiO2 contributed to visible light absorption and FeTPP dispersion. The presence of FeTPP enhances the adsorption of CO intermediates, promoting the CH4 selectivity. The conduction band of Fe-TiO2-x lowers, inhibiting the CO generation. During the photoconversion process, CO2- and COOH- intermediate products were detected by in situ DRIFTS. The synergistic effect of OVs and FeTPP improves the efficiency and selectivity of CO2 photoreduction to CH4. This work offers a new insight towards designing a photocatalyst for photoreduction of CO2 to CH4. |
| WOS研究方向 | Chemistry, Physical |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45810]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Yiwen,Yan, Li,Yu, Yaqin,et al. Photocatalytic CO2 reduction to CH4 on iron porphyrin supported on atomically thin defective titanium dioxide[J]. CATALYSIS SCIENCE & TECHNOLOGY,2021,11(18):6103-6111. |
| APA | Wu, Yiwen,Yan, Li,Yu, Yaqin,&Jing, Chuanyong.(2021).Photocatalytic CO2 reduction to CH4 on iron porphyrin supported on atomically thin defective titanium dioxide.CATALYSIS SCIENCE & TECHNOLOGY,11(18),6103-6111. |
| MLA | Wu, Yiwen,et al."Photocatalytic CO2 reduction to CH4 on iron porphyrin supported on atomically thin defective titanium dioxide".CATALYSIS SCIENCE & TECHNOLOGY 11.18(2021):6103-6111. |
入库方式： OAI收割
来源：生态环境研究中心
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