文献类型：期刊文献

英文题名：Through hydrogen spillover to fabricate novel 3DOM-HxWO3/Pt/CdS Z-scheme heterojunctions for enhanced photocatalytic hydrogen evolution

作者：Yan, Xiaoqing[1]; Xu, Baorong[1]; Yang, Xiaona[1]; Wei, Jinjia[1]; Yang, Bolun[1]; Zhao, Lei[2]; Yang, Guidong[1]

第一作者：Yan, Xiaoqing

通讯作者：Yang, Guidong

机构：[1] XJTU-Oxford International Joint Laboratory for Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China; [2] School of Civil Engineering and Architecture, Xinxiang University, Xinxiang, 453003, China

第一机构：XJTU-Oxford International Joint Laboratory for Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China

通讯机构：[1]XJTU-Oxford International Joint Laboratory for Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, China

年份：2019

卷号：256

外文期刊名：Applied Catalysis B: Environmental

收录：EI(收录号：20192607104827);Scopus(收录号：2-s2.0-85067784181)

语种：英文

外文关键词：Cadmium sulfide - Hydrogen production - II-VI semiconductors - Mass transfer - Platinum

摘要：The use of hydrogen spillover is considered to be a promising strategy to prepare H containing photocatalyst for enhanced hydrogen evolution performance. In this work, we for the first time employ the hydrogen spillover assisted by in-situ hydrothermal method to successfully synthesize the novel 3DOM-HxWO3/Pt/CdS Z-scheme heterojunction. In this special photocatalytic system, three-dimensionally ordered macroporous (3DOM) structure provide a number of active sites for the mass transfer, and the Z-scheme architecture initiatively induce the electrons migration to achieve a high efficient charge separation. As a result, the as-prepared samples show a prominent apparent quantum efficiency (AQE) of 58.80% (420 nm) and excellent hydrogen production rate of 39.2 mmol g?1 h?1, which is 13.5 times as high as that of the pure CdS (AQE of 23.15%). This work provides a new insight into the design and synthesis of porous Z-scheme heterojunction system with excellent solar light adsorption and highly-efficient charge spatial separation. ? 2019 Elsevier B.V.