Preparation of Z-Scheme system of CdS-RGO-BiVO4 and its activity for hydrogen production

Add time:08/22/2019    Source:sciencedirect.com

A series of Z-scheme CdS-RGO-BiVO4 catalysts were prepared and their photocatalytic activities of hydrogen production were measured in visible light region. The results indicated that the Z-scheme system CdS-RGO-BiVO4 prepared by evaporation & photo-reduction method possessed the highest photocatalytic activity of H2 production. The properties of CdS-RGO-BiVO4 were affected by the loading order of GO, CdS content and CdS morphology. When GO was first combined with CdS, the CdS content was 80 wt% and the morphology of CdS was nanorod, the optimal Z-scheme system of CdS-RGO-BiVO4 was obtained and its photocatalytic activity of H2 production reached 563.7 μmol/h. Furthermore, the relationship between the activity and its properties of CdS-RGO-BiVO4 was also discussed.

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