title: Hydrogen photogeneration promoted by efficient electron transfer from iridium sensitizers to colloidal MoS2 catalysts.
abstract: We report the utilization of colloidal MoS2 nanoparticles (NPs) for multicomponent photocatalytic water reduction systems in cooperation with a series of cyclometalated Ir(III) sensitizers. The effects of the particle size and particle dispersion of MoS2 NPs catalyst, reaction solvent and the concentration of the components on hydrogen evolution efficiency were investigated. The MoS2 NPs exhibited higher catalytic performance than did other commonly used water reduction catalysts under identical experiment conditions. The introduction of the carboxylate anchoring groups in the iridium complexes allows the species to be favorably chem-adsorbed onto the MoS2 NPs surface to increase the electron transfer, resulting in enhancement of hydrogen evolution relative to the non-attached systems. The highest apparent quantum yield, which was as high as 12.4%, for hydrogen evolution, was obtained (λ = 400 nm).
authors: National Laboratory of Solid State Microstructures and Eco-Materials and Renewable Energy Research Center, Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P.R. China.
authors: Yong-Jun
authors: YJ
authors: Yuan
authors: National Laboratory of Solid State Microstructures and Eco-Materials and Renewable Energy Research Center, Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P.R. China.
authors: Zhen-Tao
authors: ZT
authors: Yu
authors: National Laboratory of Solid State Microstructures and Eco-Materials and Renewable Energy Research Center, Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P.R. China.
authors: Xiao-Jie
authors: XJ
authors: Liu
authors: National Laboratory of Solid State Microstructures and Eco-Materials and Renewable Energy Research Center, Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P.R. China.
authors: Jian-Guang
authors: JG
authors: Cai
authors: National Laboratory of Solid State Microstructures and Eco-Materials and Renewable Energy Research Center, Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P.R. China.
authors: Zhong-Jie
authors: ZJ
authors: Guan
authors: National Laboratory of Solid State Microstructures and Eco-Materials and Renewable Energy Research Center, Department of Materials Science and Engineering, College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, P.R. China.
authors: Zhi-Gang
authors: ZG
authors: Zou