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Tuning the Conduction Band Potential of Bi‐based Semiconductors Using a Combination of Organic Ligands
Author(s) -
Lei Longfei,
Han Liuyuan,
Wang Jiajia,
Liu Yuanyuan,
Wang Zeyan,
Wang Peng,
Zheng Zhaoke,
Cheng Hefeng,
Dai Ying,
Huang Baibiao
Publication year - 2021
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.202002242
Subject(s) - photocatalysis , conduction band , semiconductor , thermal conduction , metal organic framework , reduction (mathematics) , organic semiconductor , metal , materials science , ligand (biochemistry) , chemistry , nanotechnology , chemical engineering , catalysis , optoelectronics , organic chemistry , physics , composite material , electron , mathematics , biochemistry , geometry , quantum mechanics , adsorption , receptor , engineering
Most Bi‐based semiconductors are incapable of photocatalytic reduction reaction from a thermodynamic view, owing to relatively positive conduction band potentials ( E CB ). Here, a novel Bi‐based metal–organic framework (Bi‐MBA, MBA=4‐mercaptobenzoic acid) with excellent photocatalytic reduction activities is developed. The E CB of Bi‐MBA locates at −1.38 eV, which is able to efficiently reduce O 2 , Cr VI and CO 2 . Theoretical calculations reveal the significant contribution of organic ligand (MBA) to the conduction band. Our results provide an effective route to improve the photocatalytic reduction activities of Bi‐based photocatalysts.