Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais
Titanium dioxide nanostructured catalysts (nanotubes) doped with different metals (silver, gold, copper, palladium and zinc) were synthesized by the hydrothermal method in order to promote an increase in their photocatalytic activity under visible light. The catalysts were characterized by X-ray dif...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2013-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000300006&lng=en&tlng=en |
| _version_ | 1798046198671605760 |
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| author | William Leonardo da Silva Marla Azário Lansarin Celso Camilo Moro |
| author_facet | William Leonardo da Silva Marla Azário Lansarin Celso Camilo Moro |
| author_sort | William Leonardo da Silva |
| collection | DOAJ |
| description | Titanium dioxide nanostructured catalysts (nanotubes) doped with different metals (silver, gold, copper, palladium and zinc) were synthesized by the hydrothermal method in order to promote an increase in their photocatalytic activity under visible light. The catalysts were characterized by X-ray diffraction, diffuse reflectance spectroscopy, transmission electron microscopy and specific area and pore volume determination. The materials' photocatalytic activity was evaluated by rhodamine B decomposition in a glass batch reactor. Under UV radiation, only nanotubes doped with palladium were more active than the TiO2 P25, but the samples doped with silver, palladium and gold exhibited better results than the undoped samples under visible light. |
| first_indexed | 2024-04-11T23:33:35Z |
| format | Article |
| id | doaj.art-8f4eeb1a3ddd49c6b8565cdd38ae8a2d |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-04-11T23:33:35Z |
| publishDate | 2013-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-8f4eeb1a3ddd49c6b8565cdd38ae8a2d2022-12-22T03:57:00ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642013-01-0136338238610.1590/S0100-40422013000300006S0100-40422013000300006Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metaisWilliam Leonardo da Silva0Marla Azário Lansarin1Celso Camilo Moro2Universidade Federal do Rio Grande do SulUniversidade Federal do Rio Grande do SulUniversidade Federal do Rio Grande do SulTitanium dioxide nanostructured catalysts (nanotubes) doped with different metals (silver, gold, copper, palladium and zinc) were synthesized by the hydrothermal method in order to promote an increase in their photocatalytic activity under visible light. The catalysts were characterized by X-ray diffraction, diffuse reflectance spectroscopy, transmission electron microscopy and specific area and pore volume determination. The materials' photocatalytic activity was evaluated by rhodamine B decomposition in a glass batch reactor. Under UV radiation, only nanotubes doped with palladium were more active than the TiO2 P25, but the samples doped with silver, palladium and gold exhibited better results than the undoped samples under visible light.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000300006&lng=en&tlng=enphotocatalysisTiO2 nanotubesmetal doped TiO2 |
| spellingShingle | William Leonardo da Silva Marla Azário Lansarin Celso Camilo Moro Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais Química Nova photocatalysis TiO2 nanotubes metal doped TiO2 |
| title | Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais |
| title_full | Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais |
| title_fullStr | Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais |
| title_full_unstemmed | Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais |
| title_short | Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais |
| title_sort | sintese caracterizacao e atividade fotocatalitica de catalisadores nanoestruturados de tio2 dopados com metais |
| topic | photocatalysis TiO2 nanotubes metal doped TiO2 |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000300006&lng=en&tlng=en |
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