物理化学学报2022，Vol.38Issue(12)：226-235,10.DOI:10.3866/PKU.WHXB202201037
In2O3修饰三维纳米花MoSx构建S型异质结用于高效光催化产氢
In2O3-Modified Three-Dimensional Nanoflower MoSx Form S-scheme Heterojunction for Efficient Hydrogen Production
摘要
Abstract
Morphology regulation and the improvement of carrier separation efficiency are important strategies for the preparation of photocatalysts with excellent performance.MoSx with a three-dimensional(3D)nanoflower morphology formed by nanosheet stacking was prepared by a simple hydrothermal method,and MoSx/In2O3 with good hydrogen evolution activity was obtained by coupling with In2O3.The preparation of the three-dimensional nanoflower morphology combined with the construction of an S-scheme heterojunction improves the electron accumulation at the active site for hydrogen evolution reaction.The UV diffuse reflection test showed that the issue of poor light absorption of In2O3 was improved.The rapid separation and transfer of electrons were effectively confirmed by characterization methods such as fluorescence spectroscopy and electrochemical tests.The most intuitively manifestation of the performance improvement of the composite material is that the optimal hydrogen evolution rate reached 6704.2 pmol·g-1·h-1,which is 1.8 times that of pure MoSx.Therefore,in this study,a new idea for the development of molybdenum-based sulfides for photocatalyttic hydrogen production is provided.关键词
光催化/异质结/MoSx/In2O3/析氢Key words
Photocatalysis/Heterojunction/MoSx/In2O3/Hydrogen production分类
化学化工引用本文复制引用
李红英,龚海明,靳治良..In2O3修饰三维纳米花MoSx构建S型异质结用于高效光催化产氢[J].物理化学学报,2022,38(12):226-235,10.基金项目
The project was supported by the Natural Science Foundation of the Ningxia Hui Autonomous Region,China(2020AAC02026).宁夏回族自治区自然科学基金(2020AAC02026) （2020AAC02026）
