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TiO(2)/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation
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SYSNO ASEP 0372102 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title TiO(2)/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation Author(s) Štengl, Václav (UACH-T) RID, ORCID, SAI
Králová, Daniela (UACH-T)Source Title International Journal of Photoenergy - ISSN 1110-662X
Roč. 2011, - (2011), 532578-1-532578-14Number of pages 14 s. Language eng - English Country EG - Egypt Keywords TiO2 ; zinc-sulfide ; photocatalytic activity Subject RIV CA - Inorganic Chemistry R&D Projects FT-TA5/134 GA MPO - Ministry of Industry and Trade (MPO) CEZ AV0Z40320502 - UACH-T (2005-2011) UT WOS 000295648100001 DOI 10.1155/2011/532578 Annotation TiO(2)/ZnS/CdS composites for photocatalytic hydrogen production from water were prepared by homogeneous hydrolysis of aqueous solutions mixture of TiOSO(4), ZnSO(4), and CdSO(4) with thioacetamide. Hydrogen evolution was observed in the presence of palladium and platinum nanoparticles deposited on TiO(2)/ZnS/CdS composites. The morphology was obtained by scanning electron microscopy, the nitrogen adsorption-desorption was used for determination of surface area ( BET) and porosity. The method of UV-VIS diffuse reflectance spectroscopy was employed to estimate band-gap energies of prepared TiO(2)/ZnS/CdS nanocomposites. The photocatalytic activity of the prepared samples were assessed by photocatalytic decomposition of Orange II dye in an aqueous slurry under UV irradiation at 365nm wavelength and visible light up to 400nm wavelength. Doped titanium dioxide by the CdS increased band-gap energy and doping with ZnS increased photocatalytic activity. The best photocatalytic activity for H(2) evolution shows sample named TiZnCd7 on surface deposited with palladium, which contains 20.21% TiO(2), 78.5% ZnS, and 1.29% CdS. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2012
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