石油化工高等学校学报2025，Vol.38Issue(1)：74-80,7.DOI:10.12422/j.issn.1006-396X.2025.01.010
MXene@TiO2/Co-MoS2-xOy复合材料的制备及其光催化性能研究
Preparation and Photocatalytic Properties of MXene@TiO2/Co-MoS2-xOy Composites
摘要
Abstract
In the face of the increasingly serious energy crisis and environmental pollution,it is important to develop durable and efficient photocatalytic materials for hydrogen production from water splitting.The MXene@TiO2 of high-performance MXene-based photocatalytic materials(M@T)is synthesized by a one-step hydrothermal method at 160℃using Ti3C2 as the titanium source and TiO2@Ti3C2 derivatives synthesized by a one-step hydrothermal method.Co-MoS2-xOy(C-M)is prepared by sodium molybdate dihydrate(Na2MoO4·2H2O)as molybdenum source,CH3CSNH2 as sulfur source,and cobalt nitrate hexahydrate(Co(NO3)2∙6H2O)as cobalt source.M@T/C-M composites are prepared at the ratios of m(M@T)/m(C-M)of 1∶1,1∶2,1∶3 and 1∶4.The structure and surface morphology of different composite systems are characterized by XRD,SEM,XPS,UV-vis,etc.At the same time,the photocatalytic degradation of methylene blue(MB),an organic pollutant in water,is tested by using xenon lamp as the light source.The results show that the M@T/C-M composites are successfully synthesized,and the light absorption range is increased to the visible region.The degradation rate of M@T/C-M(1∶3)in 20 mg/L MB solution is as high as 92.6%.The photodegradation of MB by M@T/C-M photocatalyst is mainly driven by·OH and·O-2 radicals.关键词
水热法/有机污染物/MXene基复合材料/光催化Key words
Hydrothermal method/Organic contaminants/MXene matrix composites/Photocatalysis分类
化学化工引用本文复制引用
雒丽娜,陈常东,王芳芳..MXene@TiO2/Co-MoS2-xOy复合材料的制备及其光催化性能研究[J].石油化工高等学校学报,2025,38(1):74-80,7.基金项目
教育部"春晖计划"合作科研项目(No.2020703-8) （No.2020703-8）
国家留学基金委公派访问学者面上项目(CSC202008210025) （CSC202008210025）
辽宁省教育厅项目(LJKMZ20220736). （LJKMZ20220736）
