title: Confinement effect of monolayer MoS2quantum dots on conjugated polyimide and promotion of solar-driven photocatalytic hydrogen generation.
abstract: A monolayer MoS2quantum dot confined polyimide (MQDs/PI) photocatalyst was synthesized by using a facile immersion-hydrothermal method. The investigations on the optical and electronic properties of MQDs/PI composites reveal that the strong quantum confinement effect of MQDs results in a blue-shift of the absorption band edge of PI, and the interfacial electronic interaction between MQDs and PI improves the charge transfer rate of MQDs/PI. The ultra-small size of 3.0 nm and perfect crystals of MQDs endow MQDs/PI composites with plenty of active sites and fast charge transfer, thus resulting in a 360% enhancement in photocatalytic hydrogen production compared with that of Pt/PI at the same loading amount of Pt. This discovery provides a new clue for the development of an efficient and sustainable non-noble metal photocatalyst.
authors.affiliation: Eco-materials and Renewable Energy Research Center (ERERC), School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing, 210093, People's Republic of China. wangy@nju.edu.cn and School of Chemical Engineering, Qinghai University, Qinghai 810016, China.
authors.forename: Chenghai
authors.initials: C
authors.lastname: Ma
authors.affiliation: Department of Chemistry, The Pennsylvania State University, University Park, PA 16802, USA.
authors.forename: Haoyue
authors.initials: H
authors.lastname: Zhu
authors.affiliation: Eco-materials and Renewable Energy Research Center (ERERC), School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing, 210093, People's Republic of China. wangy@nju.edu.cn.
authors.forename: Jun
authors.initials: J
authors.lastname: Zhou
authors.affiliation: Eco-materials and Renewable Energy Research Center (ERERC), School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing, 210093, People's Republic of China. wangy@nju.edu.cn.
authors.forename: Zhiwei
authors.initials: Z
authors.lastname: Cui
authors.affiliation: Eco-materials and Renewable Energy Research Center (ERERC), School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing, 210093, People's Republic of China. wangy@nju.edu.cn.
authors.forename: Teng
authors.initials: T
authors.lastname: Liu
authors.affiliation: Eco-materials and Renewable Energy Research Center (ERERC), School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing, 210093, People's Republic of China. wangy@nju.edu.cn.
authors.forename: Yicong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Eco-materials and Renewable Energy Research Center (ERERC), School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing, 210093, People's Republic of China. wangy@nju.edu.cn.
authors.forename: Ying
authors.identifier: http://orcid.org/0000-0002-3626-0678
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Eco-materials and Renewable Energy Research Center (ERERC), School of Chemistry and Chemical Engineering, National Laboratory of Solid State Microstructures, Kunshan Innovation Institute of Nanjing University, Jiangsu Key Laboratory for Nanotechnology, Nanjing, 210093, People's Republic of China. wangy@nju.edu.cn.
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Zou