Development of efficient heterostructured photocatalysts that respond to visible light remains a considerable challenge.We herein show the synthesis of ZnIn2S4/carbon quantum dot hybrid photocatalysts with flowerlike ...Development of efficient heterostructured photocatalysts that respond to visible light remains a considerable challenge.We herein show the synthesis of ZnIn2S4/carbon quantum dot hybrid photocatalysts with flowerlike microspheres via a facile solvothermal method.The ZnIn2S4/carbon quantum dot flowerlike microspheres display enhanced photocatalytic and photoelectrochemical activity compared with that of pure ZnIn2S4.With a content of only 0.5 wt%carbon quantum dots,93%of Cr(VI)is reduced under visible‐light irradiation at 40 min.As a co‐catalyst,the carbon quantum dots improve the light absorption and lengthen the lifetime of charge carriers,consequently enhancing the photocatalytic and photoelectrochemical activity.展开更多
Photocatalysis activated by visible light remains highly challenging.Here,we report novel MoSe2/ZnO/ZnSe(ZM)hybrids fabricated via a simple hydrothermal method for photocatalytic reduction of Cr(VI)under visible light...Photocatalysis activated by visible light remains highly challenging.Here,we report novel MoSe2/ZnO/ZnSe(ZM)hybrids fabricated via a simple hydrothermal method for photocatalytic reduction of Cr(VI)under visible light irradiation.ZM 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 separation.The ZM hybrid shows the highest Cr(VI)reduction rate of 100%.Moreover,the photocatalytic Cr(VI)reduction process is mainly controlled by photoinduced electrons.展开更多
文摘Development of efficient heterostructured photocatalysts that respond to visible light remains a considerable challenge.We herein show the synthesis of ZnIn2S4/carbon quantum dot hybrid photocatalysts with flowerlike microspheres via a facile solvothermal method.The ZnIn2S4/carbon quantum dot flowerlike microspheres display enhanced photocatalytic and photoelectrochemical activity compared with that of pure ZnIn2S4.With a content of only 0.5 wt%carbon quantum dots,93%of Cr(VI)is reduced under visible‐light irradiation at 40 min.As a co‐catalyst,the carbon quantum dots improve the light absorption and lengthen the lifetime of charge carriers,consequently enhancing the photocatalytic and photoelectrochemical activity.
基金Financial support from the Natural Science Foundation of Zhejiang Province(LY18E060005,LY19E020006)~~
文摘Photocatalysis activated by visible light remains highly challenging.Here,we report novel MoSe2/ZnO/ZnSe(ZM)hybrids fabricated via a simple hydrothermal method for photocatalytic reduction of Cr(VI)under visible light irradiation.ZM 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 separation.The ZM hybrid shows the highest Cr(VI)reduction rate of 100%.Moreover,the photocatalytic Cr(VI)reduction process is mainly controlled by photoinduced electrons.
