Photocatalytic Carbon Dioxide Reduction at p-Type Copper(I) Iodide

被引：43
作者：
Baran, Tomasz [1 ,2 ]
Wojtyla, Szymon [1 ]
Dibenedetto, Angela [2 ,3 ]
Aresta, Michele [3 ,4 ]
Macyk, Wojciech [1 ]
机构：
[1] Jagiellonian Univ, Fac Chem, Ingardena 3, PL-30060 Krakow, Poland
[2] Univ Bari, Dept Chem, Orabona 4, I-70125 Bari, Italy
[3] CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
[4] IC2R Srl, Via Casamassima Km 3, I-70100 Bari, Italy
来源：
CHEMSUSCHEM | 2016年 / 9卷 / 20期
关键词：
carbon dioxide reduction; copper(I) iodide; electron transfer; photocatalysis; p-type semiconductors; CO2; REDUCTION; TIO2; CUI; CONSTRUCTION; OXIDATION; CATALYSTS; METHANOL; FILM;
D O I：
10.1002/cssc.201600289
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A p-type semiconductor, CuI, has been synthesized, characterized, and tested as a photocatalyst for CO2 reduction under UV/Vis irradiation in presence of isopropanol as a hole scavenger. Formation of CO, CH4, and/or HCOOH was observed. The photocatalytic activity of CuI was attributed to the very low potential of the conduction band edge (i.e., -2.28V vs. NHE). Photocurrents generated by the studied material confirm a high efficiency of the photoinduced interfacial electrontransfer processes. Our studies show that p-type semiconductors may be effective photocatalysts for CO2 reduction, even better than extensively studied n-type titanium dioxide, owing to the low potential of the conduction band edge.
引用
收藏
页码：2933 / 2938
页数：6
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