CDS - Zenodo

Visible Light Reductive Photocatalysis of Azo-Dyes with n–n Junctions Based on Chemically Deposited CdS

"New composite photocatalysts have been obtained by chemical bath deposition of CdS on the surface of either nanostructured crystalline ZrO 2 or TiO 2 films that were previously coated on conductive glass FTO. " The recombination of charges in FTO/TiO 2 /CdS films, separated by visible illumination of Cds, is quicker than in FTO/ZrO 2 /Cds films, demonstrating that carrier dynamics in the two systems are different. Electron transfer in the ZrO 2/CdS network has been shown by a photoelectrochemical investigation, but electron injection from CdS to TiO 2 is very cost-effective since trap states of TiO 2 act as a repository for long-lived electron storage. Under illumination for azo-dye reduction, the FTO/TiO 2 /Cds has an estimated 100 meV driving force greater than FTO/ZrO 2 /CdS decreases, and it is always about 10% more active than the seconds. ".

Source link: https://zenodo.org/record/6653449

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