聊城大学学报（自然科学版）2024，Vol.37Issue(1)：52-61,10.DOI:10.19728/j.issn1672-6634.2023090011
Cu3Mo2O9/Mn0.3Cd0.7S S型异质结的构筑及其光解水产氢性能研究
Construction of Cu3Mo2O9/Mn0.3Cd0.7S S-Scheme Heterojunction for Photocatalytic Hydrogen Production via Water Splitting
摘要
Abstract
A S-scheme heterojunction photocatalyst Cu3Mo2O9/Mn0.3Cd0.7S was synthesized using an ul-trasonic assisted grinding-calcination method.The physical and chemical properties of samples,such as crystal phase,morphology,chemical elemental composition,and optical absorption ability were character-ized through X-ray powder diffraction,scanning electron microscopy,X-ray photoelectron spectroscopy,and solid-state UV-visible diffuse reflectance and other characterization techniques.The photocatalytic hy-drogen production experiment was carried out under visible and near-infrared light irradiation.The results showed that the photocatalytic hydrogen production performance of Cu3Mo2O9/Mn0.3Cd0.7S composited material was superior to both Mn0.3Cd0.7S and Cu3Mo2O9.Among them,The Cu3Mo2O9/Mn0.3 Cd0.7S with a mass fraction of 1％Cu3Mo2O9 demonstrated the highest photocatalytic activity,with a hydrogen production rate of 1.554 mmol·h-1·g-1,which is 5.5 time of Mn0.3Cd0.7S.Notably,even after under-going four cycling experiments,it retained remarkable photocatalytic performance.Furthermore,accord-ing to the results of electrochemical test and infrared thermal imaging,a plausible mechanism was pro-posed,and the synergistic effects of the S-scheme heterojunction and the photothermal effect of Cu3Mo2O9 is the key to improve the photocatalytic activity of Cu3 Mo2O9/Mn0.3Cd0.7S.关键词
光解水产氢/S型异质结/Mn0.3Cd0.7S/Cu3Mo2O9/光热效应Key words
hydrogen production via water splitting/S-scheme heterojunction/Mn0.3Cd0.7S/Cu3Mo2O9/photothermal effect分类
化学工程引用本文复制引用
于佳慧,姚欣彤,苏萍,王仕凯,张大凤,葛博,蒲锡鹏..Cu3Mo2O9/Mn0.3Cd0.7S S型异质结的构筑及其光解水产氢性能研究[J].聊城大学学报（自然科学版）,2024,37(1):52-61,10.基金项目
国家自然科学基金项目(52305196) （52305196）
山东省自然科学基金项目(ZR2022ME179)资助 （ZR2022ME179）
