Electron transfer dynamics in Schottky junction photocatalyst during electron donor-assisted hydrogen production
作者机构：Laboratory of Solar FuelFaculty of Materials Science and ChemistryChina University of Geosciences68 Jincheng StreetWuhan 430078China School of ChemistryChemical Engineering and BiotechnologyNanyang Technological University21 Nanyang LinkSingapore 637371Singapore Jiangxi Key Laboratory of Surface EngineeringJiangxi Science and Technology Normal UniversityNanchang 330038China
出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)
年 卷 期：2023年第159卷第28期
页 面：1-9页
核心收录：
学科分类：081702[工学-化学工艺] 081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学]
基 金：the National Key Research and Development Program of China(Nos.2022YFB3803600 and 2018YFB1502001) National Natural Science Foundation of China(Nos.22238009,51932007,U1905215,52073223,52173065,and 52202375) the Natural Science Foundation of Hubei Province of China(No.2022CFA001) China Postdoctoral Science Foundation(Nos.2021TQ0311 and 2021M702990) International Postdoc-toral Exchange Fellowship Program(No.PC2022051)
主 题：Transient absorption spectroscopy Interfacial electron transfer Electron transfer rate Electron transfer efficiency Hole consumption
摘 要：Electron donors(EDs)are widely used to improve the H 2 production performance of Schottky junction photocatalysts,but the functions of EDs are still unknown from the perspective of electron transfer ***,Pt nanocluster-decorated CdS nanorod is successfully prepared to construct a typical CdS/Pt Schottky *** nanoclusters with a diameter of∼2 nm are deposited on the surface of CdS nanorods by in situ photoreduction at sub-zero *** CdS/Pt photocatalyst using lactic acid shows a higher H_(2)production rate of 4762μmol g^(-1)h^(-1)compared to that using methanol,tri-ethanolamine,and *** understand the cause,the dynamics of photogenerated carriers in CdS/Pt photocatalysts during ED-assisted H_(2)production are revealed by femtosecond transient absorption *** the four organic EDs,lactic acid enables the fastest electron transfer rate of 1.8×10^(9)s^(-1)and the highest electron transfer efficiency of 76%at the CdS/Pt interface due to the most efficient hole *** work sheds light on the importance of efficient interfacial electron transfer for im-proving the photocatalytic performance of Schottky junction photocatalysts.
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