Solar Fuel and Solar Hydrogen

Efficient mesoporous/nanostructured Ag-doped alloy semiconductor for solar hydrogen generation

[+] Author Affiliations
Mohsen Lashgari

Institute for Advanced Studies in Basic Sciences (IASBS), Department of Chemistry, Zanjan 45137-66731, Iran

Center of Climate Changes and Global Warming (CCCGW), Hydrogen and Fuel Cell Laboratory, Zanjan 45137-66731, Iran

Majid Ghanimati

Institute for Advanced Studies in Basic Sciences (IASBS), Department of Chemistry, Zanjan 45137-66731, Iran

J. Photon. Energy. 4(1), 044099 (Aug 19, 2014). doi:10.1117/1.JPE.4.044099
History: Received April 11, 2014; Revised July 27, 2014; Accepted July 28, 2014
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Abstract.  Using a facile method, a compound (alloy) semiconductor from the family of cadmium-zinc-sulfide doped with tin and silver was hydrothermally synthesized and employed as an efficient photocatalyst to generate hydrogen fuel through a water photosplitting system. X-ray diffraction analyses revealed that the alloy semiconductor is a solid solution that becomes crystalized in a cubic structure, having a smaller lattice constant in the presence of Ag dopant. Reflective UV-visible spectra indicated that the Ag component not only causes the photon absorption to be significantly amplified, but the absorption edge also shows a red shift. Scanning electron microscopy and adsorption/desorption isotherms illustrated that the five-component semiconductor synthesized here belongs to the nanostructured (nanoparticulate/nanoflake) mesoporous materials and exhibits a good photocatalytic performance.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Mohsen Lashgari and Majid Ghanimati
"Efficient mesoporous/nanostructured Ag-doped alloy semiconductor for solar hydrogen generation", J. Photon. Energy. 4(1), 044099 (Aug 19, 2014). ; http://dx.doi.org/10.1117/1.JPE.4.044099


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