Carbon dots/Bi_(2)WO_(6) composite with compensatory photo-electronic effect for overall water photo-splitting at normal pressure

作     者：Haodong Nie Kaiqiang Wei Yi Li Yan Liu Yajie Zhao Hui Huang Mingwang Shao Yang Liu Zhenhui Kang Haodong Nie;Kaiqiang Wei;Yi Li;Yan Liu;Yajie Zhao;Hui Huang;Mingwang Shao;Yang Liu;Zhenhui Kang

作者机构：Institute of Functional Nano and Soft Materials Laboratory(FUNSOM)Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou 215123China Macao Institute of Materials Science and EngineeringMacao University of Science and TechnologyMacao 999078China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2021年第32卷第7期

页      面：2283-2286页

核心收录：

学科分类：081702[工学-化学工艺] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by National MCF Energy R&D Program(No.2018YFE0306105) National Key Research and Development Project of China(No.2020YFA0406104) Innovative Research Group Project of the National Natural Science Foundation of China(No.51821002) National Natural Science Foundation of China(Nos.51725204,21771132,51972216,52041202) Natural Science Foundation of Jiangsu Province(No.BK20190041) Collaborative Innovation Center of Suzhou Nano Science&Technology the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD) the 111 Project 

主　　题：Carbon dots In-situ transient photovoltage measurement Photoelectron extraction Photocatalytic hydrogen evolution Normal pressure 

摘      要：Overall water photo-splitting is a prospective ideal pathway to produce ultra-clean H_(2) energy by ***,the band structure of many semiconductors cannot satisfy the requirement of H_(2) and O_(2) production at the same ***,we illustrate that carbon dots(CDs)/Bi_(2)WO_(6) photocatalyst with compensatory photo-electronic effect has enhanced activity for overall water photo-splitting without any sacrificial *** this complex photocatalytic system,the photo-potential provided by CDs makes the CDs/Bi2WO6(C-BWO)composite could satisfy the band structure conditions for overall water *** C-BWO composite(3 wt%CDs content)exhibits optimized hydrogen evolution(oxygen evolution)of 0.28μmol/h(0.12μmol/h)with an approximate 2:1(H_(2):O_(2))stoichiometry at normal *** further employed the in-situ transient photovoltage(TPV)technique to study the photoelectron extraction and the interface charge transfer kinetics of this composite catalyst.