Preparation of Improved p-n Junction NiO/TiO2 Nanotubes for Solar-Energy-Driven Light Photocatalysis
Self-organized TiO2 nanotubes (TNTs) with average inner diameter of 109 nm, wall thickness of 15 nm, and tube length of 7–10 μm were loaded with nickel oxide (NiO) nanoparticles via incipient wet impregnation method. The molar concentration of Ni(NO3)2·6H2O aqueous solution varied in a range of 0.5 ...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2013/659013 |
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| author | Lan Ching Sim Kai Wern Ng Shaliza Ibrahim Pichiah Saravanan |
| author_facet | Lan Ching Sim Kai Wern Ng Shaliza Ibrahim Pichiah Saravanan |
| author_sort | Lan Ching Sim |
| collection | DOAJ |
| description | Self-organized TiO2 nanotubes (TNTs) with average inner diameter of 109 nm, wall thickness of 15 nm, and tube length of 7–10 μm were loaded with nickel oxide (NiO) nanoparticles via incipient wet impregnation method. The molar concentration of Ni(NO3)2·6H2O aqueous solution varied in a range of 0.5 M–2.5 M. The samples were characterized for crystalline phase, morphology, topography, chemical composition, Raman shift, and UV-Vis diffusion reflection properties. The finding shows that the loading of NiO did not influence the morphology, structure, and crystalline phase of TNTs but it exhibited significant effect on crystallite size and optical absorption properties. Further, the solar-energy-driven the photocatalytic activity of NiO/TNTs and pure TNTs was evaluated by degrading methylene blue (MB). The results confirm that photocatalytic efficiency of NiO/TNTs is higher than that of TNTs. |
| format | Article |
| id | doaj-art-5ac7b24b2ad147e3ac735bbd0c28a97e |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-5ac7b24b2ad147e3ac735bbd0c28a97e2025-02-03T05:54:09ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2013-01-01201310.1155/2013/659013659013Preparation of Improved p-n Junction NiO/TiO2 Nanotubes for Solar-Energy-Driven Light PhotocatalysisLan Ching Sim0Kai Wern Ng1Shaliza Ibrahim2Pichiah Saravanan3Environmental Engineering Laboratory, Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MalaysiaEnvironmental Engineering Laboratory, Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MalaysiaEnvironmental Engineering Laboratory, Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MalaysiaEnvironmental Engineering Laboratory, Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, MalaysiaSelf-organized TiO2 nanotubes (TNTs) with average inner diameter of 109 nm, wall thickness of 15 nm, and tube length of 7–10 μm were loaded with nickel oxide (NiO) nanoparticles via incipient wet impregnation method. The molar concentration of Ni(NO3)2·6H2O aqueous solution varied in a range of 0.5 M–2.5 M. The samples were characterized for crystalline phase, morphology, topography, chemical composition, Raman shift, and UV-Vis diffusion reflection properties. The finding shows that the loading of NiO did not influence the morphology, structure, and crystalline phase of TNTs but it exhibited significant effect on crystallite size and optical absorption properties. Further, the solar-energy-driven the photocatalytic activity of NiO/TNTs and pure TNTs was evaluated by degrading methylene blue (MB). The results confirm that photocatalytic efficiency of NiO/TNTs is higher than that of TNTs.http://dx.doi.org/10.1155/2013/659013 |
| spellingShingle | Lan Ching Sim Kai Wern Ng Shaliza Ibrahim Pichiah Saravanan Preparation of Improved p-n Junction NiO/TiO2 Nanotubes for Solar-Energy-Driven Light Photocatalysis International Journal of Photoenergy |
| title | Preparation of Improved p-n Junction NiO/TiO2 Nanotubes for Solar-Energy-Driven Light Photocatalysis |
| title_full | Preparation of Improved p-n Junction NiO/TiO2 Nanotubes for Solar-Energy-Driven Light Photocatalysis |
| title_fullStr | Preparation of Improved p-n Junction NiO/TiO2 Nanotubes for Solar-Energy-Driven Light Photocatalysis |
| title_full_unstemmed | Preparation of Improved p-n Junction NiO/TiO2 Nanotubes for Solar-Energy-Driven Light Photocatalysis |
| title_short | Preparation of Improved p-n Junction NiO/TiO2 Nanotubes for Solar-Energy-Driven Light Photocatalysis |
| title_sort | preparation of improved p n junction nio tio2 nanotubes for solar energy driven light photocatalysis |
| url | http://dx.doi.org/10.1155/2013/659013 |
| work_keys_str_mv | AT lanchingsim preparationofimprovedpnjunctionniotio2nanotubesforsolarenergydrivenlightphotocatalysis AT kaiwernng preparationofimprovedpnjunctionniotio2nanotubesforsolarenergydrivenlightphotocatalysis AT shalizaibrahim preparationofimprovedpnjunctionniotio2nanotubesforsolarenergydrivenlightphotocatalysis AT pichiahsaravanan preparationofimprovedpnjunctionniotio2nanotubesforsolarenergydrivenlightphotocatalysis |