Enhanced Transformation of Atrazine by High Efficient Visible Light-Driven N, S-Codoped TiO2 Nanowires Photocatalysts
Advanced oxidation process using titanium dioxide as a photocatalyst under solar irradiation is one of the most attractive technologies to eliminate atrazine, an endocrine disrupting and carcinogen contaminant. The N, S-codoped TiO2 nanowires at the calcination of 600°C obtained by a facile hydrothe...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2014/425836 |
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| author | Yanlin Zhang Honghai Wu Peihong Liu |
| author_facet | Yanlin Zhang Honghai Wu Peihong Liu |
| author_sort | Yanlin Zhang |
| collection | DOAJ |
| description | Advanced oxidation process using titanium dioxide as a photocatalyst under solar irradiation is one of the most attractive technologies to eliminate atrazine, an endocrine disrupting and carcinogen contaminant. The N, S-codoped TiO2 nanowires at the calcination of 600°C obtained by a facile hydrothermal method revealed the best photocatalytic performance for the degradation of atrazine under visible light irradiation compared to N, S-codoped TiO2 nanoparticles and S-doped TiO2 nanowires. TOC removal experiment also exhibited the similar result and achieved 63% of atrazine mineralization within 6 h. The degradation of atrazine was driven mainly by •OH and holes during the photocatalytic process. Reactive species quantities such •OH and O2•- generated by N, S-codoped TiO2 nanowires under visible light irradiation were much more than those of S-doped TiO2 nanowires and N, S-codoped TiO2 nanoparticles. These results were mainly attributed to the synergistic effect of N and S doping in narrowing the band gap, remarkable increase in electron-hole separation, extending the anatase-to-rutile transformation temperature above 600°C, and preferentially exposing high reactive {001} crystal facets of anatase. |
| format | Article |
| id | doaj-art-a04c166a70a74841b4630f389de94cf1 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-a04c166a70a74841b4630f389de94cf12025-02-03T01:10:41ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/425836425836Enhanced Transformation of Atrazine by High Efficient Visible Light-Driven N, S-Codoped TiO2 Nanowires PhotocatalystsYanlin Zhang0Honghai Wu1Peihong Liu2School of Chemistry and Environment, South China Normal University, Guangzhou 510006, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou 510006, ChinaSchool of Chemistry and Environment, South China Normal University, Guangzhou 510006, ChinaAdvanced oxidation process using titanium dioxide as a photocatalyst under solar irradiation is one of the most attractive technologies to eliminate atrazine, an endocrine disrupting and carcinogen contaminant. The N, S-codoped TiO2 nanowires at the calcination of 600°C obtained by a facile hydrothermal method revealed the best photocatalytic performance for the degradation of atrazine under visible light irradiation compared to N, S-codoped TiO2 nanoparticles and S-doped TiO2 nanowires. TOC removal experiment also exhibited the similar result and achieved 63% of atrazine mineralization within 6 h. The degradation of atrazine was driven mainly by •OH and holes during the photocatalytic process. Reactive species quantities such •OH and O2•- generated by N, S-codoped TiO2 nanowires under visible light irradiation were much more than those of S-doped TiO2 nanowires and N, S-codoped TiO2 nanoparticles. These results were mainly attributed to the synergistic effect of N and S doping in narrowing the band gap, remarkable increase in electron-hole separation, extending the anatase-to-rutile transformation temperature above 600°C, and preferentially exposing high reactive {001} crystal facets of anatase.http://dx.doi.org/10.1155/2014/425836 |
| spellingShingle | Yanlin Zhang Honghai Wu Peihong Liu Enhanced Transformation of Atrazine by High Efficient Visible Light-Driven N, S-Codoped TiO2 Nanowires Photocatalysts International Journal of Photoenergy |
| title | Enhanced Transformation of Atrazine by High Efficient Visible Light-Driven N, S-Codoped TiO2 Nanowires Photocatalysts |
| title_full | Enhanced Transformation of Atrazine by High Efficient Visible Light-Driven N, S-Codoped TiO2 Nanowires Photocatalysts |
| title_fullStr | Enhanced Transformation of Atrazine by High Efficient Visible Light-Driven N, S-Codoped TiO2 Nanowires Photocatalysts |
| title_full_unstemmed | Enhanced Transformation of Atrazine by High Efficient Visible Light-Driven N, S-Codoped TiO2 Nanowires Photocatalysts |
| title_short | Enhanced Transformation of Atrazine by High Efficient Visible Light-Driven N, S-Codoped TiO2 Nanowires Photocatalysts |
| title_sort | enhanced transformation of atrazine by high efficient visible light driven n s codoped tio2 nanowires photocatalysts |
| url | http://dx.doi.org/10.1155/2014/425836 |
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