A Bismuth-Based Metal-Organic Framework as an Efficient Visible-Light-Driven Photocatalyst

• Published in: Chemistry : a European journal Vol. 21; no. 6; pp. 2364 - 2367
• Main Authors: Wang, Guanzhi, Sun, Qilong, Liu, Yuanyuan, Huang, Baibiao, Dai, Ying, Zhang, Xiaoyang, Qin, Xiaoyan
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 02.02.2015; WILEY‐VCH Verlag; Wiley Subscription Services, Inc
• Subjects: bismuth; Charge carriers; Charge transfer; Chemistry; Ligands; Localization; Metal-organic frameworks; Metalorganic compounds; Photocatalysis; Photocatalysts; photoelectric properties; Photoelectricity; Position (location); semiconducting materials; semiconducting materials; photocatalysis; photoelectric properties; bismuth; metal-organic frameworks
• ISSN: 0947-6539; 1521-3765
• DOI: 10.1002/chem.201405047

A visible‐light‐responsive bismuth‐based metal–organic framework (Bi‐mna) is demonstrated to show good photoelectric and photocatalytic properties. Combining experimental and theoretical results, a ligand‐to‐ligand charge transfer (LLCT) process is found to be responsible for the high performance, which gives rise to a longer lifetime of photogenerated charge carriers. Our results suggest that bismuth‐based MOFs could be promising candidates for the development of efficient visible‐light photocatalysts. A visible‐light‐responsive bismuth‐based metal–organic framework (Bi‐mna) is shown to exhibit good photoelectric and photocatalytic properties. Combined with the experimental and theoretical results (see electron localization function plot), a ligand‐to‐ligand charge transfer (LLCT) process is found to be responsible for the high performance. This process gives rise to a longer lifetime of the photogenerated charge carriers.