摘要：Photocatalysis activated by visible light remains highly ***,we report novel mose2/ZnO/ZnSe(ZM)hybrids fabricated via a simple hydrothermal method for photocatalytic reduction of Cr(VI)under visible light *** hybrids show improved photocatalytic reduction ability under visible light irradiation compared to pure ZnO owing to good visible light absorption and rapid electron transfer and *** ZM hybrid shows the highest Cr(VI)reduction rate of 100%.Moreover,the photocatalytic Cr(VI)reduction process is mainly controlled by photoinduced electrons.

摘要：采用液相超声剥离法一步制备了mose_2量子点,研究溶剂对mose_2量子点形貌和发光性质的影响。透射电子显微镜结果表明,所制备的mose_2量子点尺寸均匀、分散性良好,溶剂影响mose_2量子点的尺寸。所制备的mose_2量子点在可见光区和紫外光区各有1个发光峰,发光峰分别归属于mose_2量子点的缺陷态和本征态发光。能带带隙随量子点尺寸的减小而变大,导致发射峰蓝移;mose_2量子点表现出量子限制效应。对发光机制的认识将有助于设计量子点的尺寸与表面结构,获得新颖的发光特性。