Photoactivity of tungsten and niobium composite of titania under UV irradiation
TiO2 has been shown to be excellent photoactive material in the presence of UV light. In order to make TiO2 a more efficient photocatalyst several attempts are being made. The present work attempts to address the issue through WO3-TiO2 (TW sample) and Nb2O5-TiO2 (TN sample) composites. Both the com...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Applied Science Innovations Private Limited
2019-06-01
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| Series: | Carbon: Science and Technology |
| Subjects: | |
| Online Access: | http://www.applied-science-innovations.com/cst-web-site/CST-11-2-2019/CST-347-11-2-2019-57-64.pdf |
| _version_ | 1828426554767572992 |
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| author | Kumar Gaurav Neha Kumari A. S. Bhattacharyya S. K. Samdarshi |
| author_facet | Kumar Gaurav Neha Kumari A. S. Bhattacharyya S. K. Samdarshi |
| author_sort | Kumar Gaurav |
| collection | DOAJ |
| description | TiO2 has been shown to be excellent photoactive material in the presence of UV light. In order to make TiO2 a more efficient photocatalyst several attempts are being made. The present work
attempts to address the issue through WO3-TiO2 (TW sample) and Nb2O5-TiO2 (TN sample) composites. Both the composite were synthesized through sol-gel process. The composites were
characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and UV–Visible spectrophotometer. The composites lower band gap value than DP25. This effect also seems to be reflected in photo-degradation experiment. Photo-degradation of methylene blue (MB) dye, in the presence of Nb2O5-TiO2, WO3–TiO2 composite and DP25 under UV irradiation was studied. WO3–TiO2 composites have superior photoactivity than Degussa P25 (DP25) while Nb2O5-TiO2 composite seems to have deteriorating effect on photoactivity of TiO2. |
| first_indexed | 2024-12-10T16:47:59Z |
| format | Article |
| id | doaj.art-1ba4af1001c94d1992e9542aa90c8aa5 |
| institution | Directory Open Access Journal |
| issn | 0974-0546 0974-0546 |
| language | English |
| last_indexed | 2024-12-10T16:47:59Z |
| publishDate | 2019-06-01 |
| publisher | Applied Science Innovations Private Limited |
| record_format | Article |
| series | Carbon: Science and Technology |
| spelling | doaj.art-1ba4af1001c94d1992e9542aa90c8aa52022-12-22T01:40:59ZengApplied Science Innovations Private LimitedCarbon: Science and Technology0974-05460974-05462019-06-011125764Photoactivity of tungsten and niobium composite of titania under UV irradiationKumar Gaurav0Neha Kumari1A. S. Bhattacharyya2 S. K. Samdarshi3Centre for Excellence in Green and Efficient Energy Technology, Central University of Jharkhand, Ranchi 835205, Jharkhand, IndiaDepartment of Energy Engineering, Central University of Jharkhand, Ranchi 835205, Jharkhand, IndiaDepartment of Nanotechnology, Central University of Jharkhand, Ranchi 835205, Jharkhand, IndiaCentre for Excellence in Green and Efficient Energy Technology, Central University of Jharkhand, Ranchi 835205, Jharkhand, IndiaTiO2 has been shown to be excellent photoactive material in the presence of UV light. In order to make TiO2 a more efficient photocatalyst several attempts are being made. The present work attempts to address the issue through WO3-TiO2 (TW sample) and Nb2O5-TiO2 (TN sample) composites. Both the composite were synthesized through sol-gel process. The composites were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and UV–Visible spectrophotometer. The composites lower band gap value than DP25. This effect also seems to be reflected in photo-degradation experiment. Photo-degradation of methylene blue (MB) dye, in the presence of Nb2O5-TiO2, WO3–TiO2 composite and DP25 under UV irradiation was studied. WO3–TiO2 composites have superior photoactivity than Degussa P25 (DP25) while Nb2O5-TiO2 composite seems to have deteriorating effect on photoactivity of TiO2.http://www.applied-science-innovations.com/cst-web-site/CST-11-2-2019/CST-347-11-2-2019-57-64.pdfMetal oxidePhotocatalystWO3-TiO2 compositeNb2O5-TiO2 compositeMethylene BluePhotodegradation |
| spellingShingle | Kumar Gaurav Neha Kumari A. S. Bhattacharyya S. K. Samdarshi Photoactivity of tungsten and niobium composite of titania under UV irradiation Carbon: Science and Technology Metal oxide Photocatalyst WO3-TiO2 composite Nb2O5-TiO2 composite Methylene Blue Photodegradation |
| title | Photoactivity of tungsten and niobium composite of titania under UV irradiation |
| title_full | Photoactivity of tungsten and niobium composite of titania under UV irradiation |
| title_fullStr | Photoactivity of tungsten and niobium composite of titania under UV irradiation |
| title_full_unstemmed | Photoactivity of tungsten and niobium composite of titania under UV irradiation |
| title_short | Photoactivity of tungsten and niobium composite of titania under UV irradiation |
| title_sort | photoactivity of tungsten and niobium composite of titania under uv irradiation |
| topic | Metal oxide Photocatalyst WO3-TiO2 composite Nb2O5-TiO2 composite Methylene Blue Photodegradation |
| url | http://www.applied-science-innovations.com/cst-web-site/CST-11-2-2019/CST-347-11-2-2019-57-64.pdf |
| work_keys_str_mv | AT kumargaurav photoactivityoftungstenandniobiumcompositeoftitaniaunderuvirradiation AT nehakumari photoactivityoftungstenandniobiumcompositeoftitaniaunderuvirradiation AT asbhattacharyya photoactivityoftungstenandniobiumcompositeoftitaniaunderuvirradiation AT sksamdarshi photoactivityoftungstenandniobiumcompositeoftitaniaunderuvirradiation |