文献类型：期刊文献

英文题名：Preparation of MoS2/Ni@NiO/g-C3N4 composite catalyst and its photocatalytic performance for hydrogen production

作者：Zhang, Chunjuan[1];Zheng, Chunjie[1];Cao, Xuejun[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2024

卷号：51

起止页码：1078

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20233414584005);WOS:【SCI-EXPANDED(收录号:WOS:001138769500001)】；

语种：英文

外文关键词：Photocatalysis; Hydrogen production; Composite catalyst

摘要：A p-n heterojunction composite catalyst MoS2/Ni@NiO/g-C3N4 was synthesized by hydrothermal method to produce H2. The catalyst was characterized by X-ray diffraction, scanning electron microscopy, ultraviolet visible spectroscopy, photoluminescence spectrum, etc. The catalytic effect and mechanism of MoS2/Ni@NiO/g-C3N4 were investigated. The hydrogen production rate of the composite catalyst could reach 7.98 mmol g-1 h-1, which was 5 times higher than g-C3N4. It could be seen from the characterization that the specific surface area of the composite increased to 66.39 m2/g, the active sites on the surface increased. The formation of p-n heterojunction reduced the electron-hole recombination rate and improved the hydrogen production rate of the catalyst. Finally, the apparent quantum yield of MoS2/Ni@NiO/g-C3N4 was calculated, which was 67.25%. It provided a new strategy for the preparation of highly efficient hydrogen-producing composite catalysts. (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.