TiO2/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation
TiO2/ZnS/CdS composites for photocatalytic hydrogen production from water were prepared by homogeneous hydrolysis of aqueous solutions mixture of TiOSO4, ZnSO4, and CdSO4 with thioacetamide. Hydrogen evolution was observed in the presence of palladium and platinum nanoparticles deposited on TiO2/Zn...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2011/532578 |
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| _version_ | 1832545285716312064 |
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| author | Václav Štengl Daniela Králová |
| author_facet | Václav Štengl Daniela Králová |
| author_sort | Václav Štengl |
| collection | DOAJ |
| description | TiO2/ZnS/CdS composites for photocatalytic hydrogen production from water were prepared by homogeneous hydrolysis of aqueous solutions mixture of TiOSO4, ZnSO4, and CdSO4 with thioacetamide. Hydrogen evolution was observed in the presence of palladium and platinum nanoparticles deposited on TiO2/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 TiO2/ZnS/CdS nano-composites. The photocatalytic activity of the prepared samples were assessed by photocatalytic decomposition of Orange II dye in an aqueous slurry under UV irradiation at 365 nm wavelength and visible light up to 400 nm wavelength. Doped titanium dioxide by the CdS increased band-gap energy and doping with ZnS increased photocatalytic activity. The best photocatalytic activity for H2 evolution shows sample named TiZnCd7 on surface deposited with palladium, which contains 20.21% TiO2, 78.5% ZnS, and 1.29% CdS. |
| format | Article |
| id | doaj-art-1f201c30c40c4243972b8e23474ba516 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-1f201c30c40c4243972b8e23474ba5162025-02-03T07:26:12ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2011-01-01201110.1155/2011/532578532578TiO2/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye DegradationVáclav Štengl0Daniela Králová1Department of Solid State Chemistry, Institute of Inorganic Chemistry AS CR, v.v.i., 250 68 Řež, Czech RepublicDepartment of Solid State Chemistry, Institute of Inorganic Chemistry AS CR, v.v.i., 250 68 Řež, Czech RepublicTiO2/ZnS/CdS composites for photocatalytic hydrogen production from water were prepared by homogeneous hydrolysis of aqueous solutions mixture of TiOSO4, ZnSO4, and CdSO4 with thioacetamide. Hydrogen evolution was observed in the presence of palladium and platinum nanoparticles deposited on TiO2/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 TiO2/ZnS/CdS nano-composites. The photocatalytic activity of the prepared samples were assessed by photocatalytic decomposition of Orange II dye in an aqueous slurry under UV irradiation at 365 nm wavelength and visible light up to 400 nm wavelength. Doped titanium dioxide by the CdS increased band-gap energy and doping with ZnS increased photocatalytic activity. The best photocatalytic activity for H2 evolution shows sample named TiZnCd7 on surface deposited with palladium, which contains 20.21% TiO2, 78.5% ZnS, and 1.29% CdS.http://dx.doi.org/10.1155/2011/532578 |
| spellingShingle | Václav Štengl Daniela Králová TiO2/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation International Journal of Photoenergy |
| title | TiO2/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation |
| title_full | TiO2/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation |
| title_fullStr | TiO2/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation |
| title_full_unstemmed | TiO2/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation |
| title_short | TiO2/ZnS/CdS Nanocomposite for Hydrogen Evolution and Orange II Dye Degradation |
| title_sort | tio2 zns cds nanocomposite for hydrogen evolution and orange ii dye degradation |
| url | http://dx.doi.org/10.1155/2011/532578 |
| work_keys_str_mv | AT vaclavstengl tio2znscdsnanocompositeforhydrogenevolutionandorangeiidyedegradation AT danielakralova tio2znscdsnanocompositeforhydrogenevolutionandorangeiidyedegradation |