Creation of Mo active sites on indium oxide microrods for photocatalytic amino acid production

Zheng, Mang1; Li, Qi2; Liu, Mingyang2; Liu, Jianan1; Zhao, Chen3; Xiao, Xudong1; Wang, Hongli1; Zhou, Jing5; Zhang, Liping4; Jiang, Baojiang1

2021-12-01

10.1007/s40843-021-1907-3

Science China-Materials   影响因子和分区

2095-8226

2199-4501

As an n-type semiconductor, In2O3 is considered a promising photocatalyst for producing amino acids using biomass derivatives as precursors. However, similar to other intrinsic semiconductors, In2O3 suffers from poor charge dynamics. Herein, we show the synthesis of Mo-doped In2O3 (Mo-In2O3) with a porous rod-shaped structure through a one-step solvothermal reaction followed by calcination. Under visible-light irradiation, Mo-In2O3 achieves a high conversion rate of 81% for the reaction that transforms lactic acid into alanine with a selectivity of 91%. Spectroscopic techniques and density functional theory calculations reveal that Mo doping introduces defect states slightly below the conduction band of In2O3, which improves the separation of photogenerated electron-hole pairs. In addition, Mo atoms on the surface form extra adsorption and reaction centers that greatly enhance the reaction rate. This work provides insights into the development of transition metal-doped semiconductor photocatalysts to produce amino acids.

photocatalysis In2O3 transition metal doping charge transfer organic synthesis

SCI ; EI

英语

通讯

National Natural Science Foundation of China[21771061] ; Outstanding Youth Fund of Heilongjiang Province[JQ 2020B002]

Materials Science

Materials Science, Multidisciplinary

WOS:000736420400001

SCIENCE PRESS

Web of Science

1.Heilongjiang Univ, Sch Chem & Mat Sci, Harbin 150080, Peoples R China
2.Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
4.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
5.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China

Zheng, Mang,Li, Qi,Liu, Mingyang,et al. Creation of Mo active sites on indium oxide microrods for photocatalytic amino acid production[J]. Science China-Materials,2021.

Zheng, Mang.,Li, Qi.,Liu, Mingyang.,Liu, Jianan.,Zhao, Chen.,...&Jiang, Baojiang.(2021).Creation of Mo active sites on indium oxide microrods for photocatalytic amino acid production.Science China-Materials.

Zheng, Mang,et al."Creation of Mo active sites on indium oxide microrods for photocatalytic amino acid production".Science China-Materials (2021).