Comparative investigation of photocatalytic degradation of toluene on Nitrogen doped Ta2O5 and Nb2O5 nanoparticles
Nb2O5 and Ta2O5 nanoparticles were prepared at a moderate sintering temperature of 700 °C using a solution method. Nitrogen doped Nb2O5 and Ta2O5 were obtained by ammonia gas treatment at 700 °C. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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American Chemical Society
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/40856 |
| _version_ | 1848755983185084416 |
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| author | Ullah, Ruh Sun, Hongqi Ang, Ha Ming Tade, Moses Wang, Shaobin |
| author_facet | Ullah, Ruh Sun, Hongqi Ang, Ha Ming Tade, Moses Wang, Shaobin |
| author_sort | Ullah, Ruh |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Nb2O5 and Ta2O5 nanoparticles were prepared at a moderate sintering temperature of 700 °C using a solution method. Nitrogen doped Nb2O5 and Ta2O5 were obtained by ammonia gas treatment at 700 °C. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and UV-vis diffuse reflectance spectroscopy. All the materials were used for photocatalytic decomposition of gaseous toluene irradiated with artificial solar light and pure visible light. Most of the materials were multiple crystallites with orthorhombic and monoclinic structures. Tantalum based compounds, undoped (Ta2O5 (lab)) and nitrogen doped (Ta2O5:N (lab)), have shown much better performance than niobium based materials. Ta2O5:N (lab) decomposed gaseous toluene with a rate similar to those of Ta2O5 (lab) and Ta2O5:N (com) in the initial 60 min but at a higher rate at extended time under artificial sunlight. Ta2O5:N (lab) decomposed about 70% toluene with artificial sunlight and 30% with pure visible light (lambda = 400 nm). The material also exhibited a very stable performance with artificial sunlight and pure visible light. |
| first_indexed | 2025-11-14T09:04:58Z |
| format | Journal Article |
| id | curtin-20.500.11937-40856 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:04:58Z |
| publishDate | 2013 |
| publisher | American Chemical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-408562017-09-13T14:03:54Z Comparative investigation of photocatalytic degradation of toluene on Nitrogen doped Ta2O5 and Nb2O5 nanoparticles Ullah, Ruh Sun, Hongqi Ang, Ha Ming Tade, Moses Wang, Shaobin Nb2O5 and Ta2O5 nanoparticles were prepared at a moderate sintering temperature of 700 °C using a solution method. Nitrogen doped Nb2O5 and Ta2O5 were obtained by ammonia gas treatment at 700 °C. The materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and UV-vis diffuse reflectance spectroscopy. All the materials were used for photocatalytic decomposition of gaseous toluene irradiated with artificial solar light and pure visible light. Most of the materials were multiple crystallites with orthorhombic and monoclinic structures. Tantalum based compounds, undoped (Ta2O5 (lab)) and nitrogen doped (Ta2O5:N (lab)), have shown much better performance than niobium based materials. Ta2O5:N (lab) decomposed gaseous toluene with a rate similar to those of Ta2O5 (lab) and Ta2O5:N (com) in the initial 60 min but at a higher rate at extended time under artificial sunlight. Ta2O5:N (lab) decomposed about 70% toluene with artificial sunlight and 30% with pure visible light (lambda = 400 nm). The material also exhibited a very stable performance with artificial sunlight and pure visible light. 2013 Journal Article http://hdl.handle.net/20.500.11937/40856 10.1021/ie302326h American Chemical Society restricted |
| spellingShingle | Ullah, Ruh Sun, Hongqi Ang, Ha Ming Tade, Moses Wang, Shaobin Comparative investigation of photocatalytic degradation of toluene on Nitrogen doped Ta2O5 and Nb2O5 nanoparticles |
| title | Comparative investigation of photocatalytic degradation of toluene on Nitrogen doped Ta2O5 and Nb2O5 nanoparticles |
| title_full | Comparative investigation of photocatalytic degradation of toluene on Nitrogen doped Ta2O5 and Nb2O5 nanoparticles |
| title_fullStr | Comparative investigation of photocatalytic degradation of toluene on Nitrogen doped Ta2O5 and Nb2O5 nanoparticles |
| title_full_unstemmed | Comparative investigation of photocatalytic degradation of toluene on Nitrogen doped Ta2O5 and Nb2O5 nanoparticles |
| title_short | Comparative investigation of photocatalytic degradation of toluene on Nitrogen doped Ta2O5 and Nb2O5 nanoparticles |
| title_sort | comparative investigation of photocatalytic degradation of toluene on nitrogen doped ta2o5 and nb2o5 nanoparticles |
| url | http://hdl.handle.net/20.500.11937/40856 |