| TiO2负载型催化剂及光催化还原CO2反应的表面光电压谱研究 |
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| 引用本文： | 徐用军,谢腾峰,王德军,王瑛,李铁津. TiO2负载型催化剂及光催化还原CO2反应的表面光电压谱研究[J]. 高等学校化学学报, 1999, 20(3): 461-463 |
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| 作者姓名： | 徐用军 谢腾峰 王德军 王瑛 李铁津 |
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| 作者单位： | 1. 大庆职工大学, 大庆 163255;2. 吉林大学化学系, 长春 130023 |
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| 基金项目： | 吉林省科技发展计划资助 |
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| 摘 要： | 半导体TiO2作为光催化剂,已被广泛应用于光催化废水处理及光催化储能[1,2]等方面的研究.人们不断开发高活性的新型光催化剂并对其反应机理进行了探索性研究[3],希望通过表面负载Pd、Ru、Pt或Rh等贵金属的小岛式颗粒以传递光生电子(或光生空穴).
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| 关 键 词： | 二氧化钛 光催化剂 表面光电压 二氧化碳还原 |
| 收稿时间： | 1998-09-08 |
A Study of Mechanism of Modified TiO2 Photocatalysts for Photoreduction of CO2 with Surface Photovoltage Spectrum |
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| XU Yong-Jun,XIE Teng-Feng,WANG De-Jun,WANG Ying,LI Tie-Jin. A Study of Mechanism of Modified TiO2 Photocatalysts for Photoreduction of CO2 with Surface Photovoltage Spectrum[J]. Chemical Research In Chinese Universities, 1999, 20(3): 461-463 |
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| Authors: | XU Yong-Jun XIE Teng-Feng WANG De-Jun WANG Ying LI Tie-Jin |
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| Affiliation: | 1. Daqing Staff and Workers University, Daqing, 163255;2. Department of Chemistry, Jilin University, Changchun, 130023 |
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| Abstract: | The study of mechanism of modified TiO-2 photocatalysts for photoreduction of CO-2 with surface photovoltage spectrum(SPS) was reported for the first time. The results showed that a new surface photovoltaic response band appears in the SPS curve of Pd/TiO-2 or {Pd/RuO-2/TiO-2} in near IR region, moreover, the stronger SPS response intensity in near IR is, the higher the catalytic activities of photoreduction of CO-2. The surface state plays a role in the process of photocatalysis. |
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| Keywords: | Titanium dioxide Photocatalyst Surface photovoltage Reduction of carbon dioxide |
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