Silver Doped TiO2 Nanoparticles: Preparation, Characterization and Efficient Degradation of 2,4-dichlorophenol Under Visible Light
Hydrothermally synthesized TiO2 nanoparticles containing different amounts of silver were characterized by X-Ray diffraction (XRD), Fourier transform infrared (FT-IR) and scanning electron microscopy equipped with energy dispersive X-ray microanalysis (SEM/EDX) techniques. XRD results showed prepare...
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| Format: | Article |
| Language: | English |
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Iranian Environmental Mutagen Society
2016-11-01
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| Series: | Journal of Water and Environmental Nanotechnology |
| Subjects: | |
| Online Access: | http://www.jwent.net/article_22798_036fc4c3b06607480b9ae3547e0fcca8.pdf |
| _version_ | 1818656433987649536 |
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| author | Zahra Sarteep Azadeh Ebrahimian Pirbazari Mohammad Ali Aroon |
| author_facet | Zahra Sarteep Azadeh Ebrahimian Pirbazari Mohammad Ali Aroon |
| author_sort | Zahra Sarteep |
| collection | DOAJ |
| description | Hydrothermally synthesized TiO2 nanoparticles containing different amounts of silver were characterized by X-Ray diffraction (XRD), Fourier transform infrared (FT-IR) and scanning electron microscopy equipped with energy dispersive X-ray microanalysis (SEM/EDX) techniques. XRD results showed prepared samples include 100% anatase phase. The presence of silver in TiO2 nanoparticle network was established by XRD, SEM/EDX and FT-IR techniques. The photocatalytic performance of the prepared catalysts was tested for the degradation of 2,4-dichlorophenol (2,4-DCP) under visible light.. The experiments demonstrated that 2,4-DCP was effectively degraded in the presence of Ag/TiO2 samples. It was confirmed that the presence of Ag on TiO2 catalysts could enhance the photocatalytic degradation of 2,4-DCP in aqueous suspension. It was found that an optimal dosage of 1.68 wt% Ag in TiO2 achieved the fastest 2,4-DCP degradation (95% after 180 min irradiation) under the experimental conditions. On the basis of various characterizations of the photocatalysts, the reactions involved to explain the photocatalytic activity enhancement due to Ag doping include a better separation of photogenerated charge carriers. GC-MS analysis showed the major intermediates of 2,4-DCP degradation are simple acids like oxalic acid, acetic acid, etc. as the final products. |
| first_indexed | 2024-12-17T03:25:31Z |
| format | Article |
| id | doaj.art-b9fcb541f3484160ab720a68ff726ac6 |
| institution | Directory Open Access Journal |
| issn | 2476-7204 2476-6615 |
| language | English |
| last_indexed | 2024-12-17T03:25:31Z |
| publishDate | 2016-11-01 |
| publisher | Iranian Environmental Mutagen Society |
| record_format | Article |
| series | Journal of Water and Environmental Nanotechnology |
| spelling | doaj.art-b9fcb541f3484160ab720a68ff726ac62022-12-21T22:05:25ZengIranian Environmental Mutagen SocietyJournal of Water and Environmental Nanotechnology2476-72042476-66152016-11-011213514410.7508/jwent.2016.02.00722798Silver Doped TiO2 Nanoparticles: Preparation, Characterization and Efficient Degradation of 2,4-dichlorophenol Under Visible LightZahra Sarteep0Azadeh Ebrahimian Pirbazari1Mohammad Ali Aroon2Fouman Faculty of Engineering, College of Engineering, University of Tehran, Tehran, IranFouman Faculty of Engineering, College of Engineering, University of Tehran, Tehran, IranCaspian Faculty of Engineering, College of Engineering, University of Tehran, Tehran, IranHydrothermally synthesized TiO2 nanoparticles containing different amounts of silver were characterized by X-Ray diffraction (XRD), Fourier transform infrared (FT-IR) and scanning electron microscopy equipped with energy dispersive X-ray microanalysis (SEM/EDX) techniques. XRD results showed prepared samples include 100% anatase phase. The presence of silver in TiO2 nanoparticle network was established by XRD, SEM/EDX and FT-IR techniques. The photocatalytic performance of the prepared catalysts was tested for the degradation of 2,4-dichlorophenol (2,4-DCP) under visible light.. The experiments demonstrated that 2,4-DCP was effectively degraded in the presence of Ag/TiO2 samples. It was confirmed that the presence of Ag on TiO2 catalysts could enhance the photocatalytic degradation of 2,4-DCP in aqueous suspension. It was found that an optimal dosage of 1.68 wt% Ag in TiO2 achieved the fastest 2,4-DCP degradation (95% after 180 min irradiation) under the experimental conditions. On the basis of various characterizations of the photocatalysts, the reactions involved to explain the photocatalytic activity enhancement due to Ag doping include a better separation of photogenerated charge carriers. GC-MS analysis showed the major intermediates of 2,4-DCP degradation are simple acids like oxalic acid, acetic acid, etc. as the final products.http://www.jwent.net/article_22798_036fc4c3b06607480b9ae3547e0fcca8.pdf2,4-dichlorophenoldegradationsilvertio2 |
| spellingShingle | Zahra Sarteep Azadeh Ebrahimian Pirbazari Mohammad Ali Aroon Silver Doped TiO2 Nanoparticles: Preparation, Characterization and Efficient Degradation of 2,4-dichlorophenol Under Visible Light Journal of Water and Environmental Nanotechnology 2,4-dichlorophenol degradation silver tio2 |
| title | Silver Doped TiO2 Nanoparticles: Preparation, Characterization and Efficient Degradation of 2,4-dichlorophenol Under Visible Light |
| title_full | Silver Doped TiO2 Nanoparticles: Preparation, Characterization and Efficient Degradation of 2,4-dichlorophenol Under Visible Light |
| title_fullStr | Silver Doped TiO2 Nanoparticles: Preparation, Characterization and Efficient Degradation of 2,4-dichlorophenol Under Visible Light |
| title_full_unstemmed | Silver Doped TiO2 Nanoparticles: Preparation, Characterization and Efficient Degradation of 2,4-dichlorophenol Under Visible Light |
| title_short | Silver Doped TiO2 Nanoparticles: Preparation, Characterization and Efficient Degradation of 2,4-dichlorophenol Under Visible Light |
| title_sort | silver doped tio2 nanoparticles preparation characterization and efficient degradation of 2 4 dichlorophenol under visible light |
| topic | 2,4-dichlorophenol degradation silver tio2 |
| url | http://www.jwent.net/article_22798_036fc4c3b06607480b9ae3547e0fcca8.pdf |
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