Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais Synthesis, characterization and photocatalytic activity of nanostructured TiO2 catalysts doped with metals
<abstract language="eng">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...
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2013-01-01
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doaj-5b4d2086b8d54a4eb73b9518af4f5e842020-11-24T21:07:37ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642013-01-01363382386Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais Synthesis, characterization and photocatalytic activity of nanostructured TiO2 catalysts doped with metalsWilliam Leonardo da SilvaMarla Azário LansarinCelso Camilo Moro<abstract language="eng">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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000300006photocatalysisTiO2 nanotubesmetal doped TiO2 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
William Leonardo da Silva Marla Azário Lansarin Celso Camilo Moro |
spellingShingle |
William Leonardo da Silva Marla Azário Lansarin Celso Camilo Moro Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais Synthesis, characterization and photocatalytic activity of nanostructured TiO2 catalysts doped with metals Química Nova photocatalysis TiO2 nanotubes metal doped TiO2 |
author_facet |
William Leonardo da Silva Marla Azário Lansarin Celso Camilo Moro |
author_sort |
William Leonardo da Silva |
title |
Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais Synthesis, characterization and photocatalytic activity of nanostructured TiO2 catalysts doped with metals |
title_short |
Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais Synthesis, characterization and photocatalytic activity of nanostructured TiO2 catalysts doped with metals |
title_full |
Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais Synthesis, characterization and photocatalytic activity of nanostructured TiO2 catalysts doped with metals |
title_fullStr |
Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais Synthesis, characterization and photocatalytic activity of nanostructured TiO2 catalysts doped with metals |
title_full_unstemmed |
Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais Synthesis, characterization and photocatalytic activity of nanostructured TiO2 catalysts doped with metals |
title_sort |
síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de tio2 dopados com metais synthesis, characterization and photocatalytic activity of nanostructured tio2 catalysts doped with metals |
publisher |
Sociedade Brasileira de Química |
series |
Química Nova |
issn |
0100-4042 1678-7064 |
publishDate |
2013-01-01 |
description |
<abstract language="eng">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. |
topic |
photocatalysis TiO2 nanotubes metal doped TiO2 |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422013000300006 |
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