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- Title
Effect of PdS on Photocatalytic Hydrogen Evolution of Nanostructured CdS under Visible Light Irradiation.
- Authors
Qingyun Chen; Cheng Suo; Shu Zhang; Yunhai Wang
- Abstract
To investigate the effect of PdS as a cocatalyst for photocatalytic hydrogen evolution, nanostructured PdS/CdS were prepared by an in situ coprecipitation and hydrothermal method, respectively. The as-prepared photocatalysts were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), UV-visible absorption spectra, and photoluminescence spectra (PL). With PdS highly dispersed in the CdS nanostructures, the photoactivity was evaluated by hydrogen evolution from aqueous solution containing Na2S/Na2SO3 as sacrificial reagents under visible light irradiation. When the concentration of PdS was 1% by weight, PdS/CdS, prepared by the in situ coprecipitation, showed the highest photocatalytic activity, while that prepared by hydrothermal method showed the most stability for hydrogen evolution. The effect of highly dispersed PdS on the photoactivity was discussed.
- Subjects
PHOTOCATALYSIS; PALLADIUM compounds; HYDROGEN evolution reactions; NANOSTRUCTURED materials; CADMIUM sulfide; TRANSMISSION electron microscopy
- Publication
International Journal of Photoenergy, 2013, p1
- ISSN
1110-662X
- Publication type
Article
- DOI
10.1155/2013/149586