Photocatalytic studies of tio2/sio2 nanocomposite xerogels
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/159714 |
Resumo: | The use of titania-silica materials in photocatalytic processes has been proposed as an alternative to the conventional TiO2 catalysts, in order to facilitate the separation of products after the reaction. However, despite the large number of research in this field, the mechanism governing the photocatalytic activity of the mixed TiO2/SiO2 oxides is not clear. Titania- Silica nanocomposite xerogels were prepared by sol-gel method. This work has been used to describe the synthesis and the photocatalytic properties of TiO2-SiO2 nanocomposite xerogel. The nanocomposite xerogels were prepared by keeping the molar ratio of TEOS:TTIP:MtOH:DIW at 1: 1:6:14 respectively and the catalysts used were HCl and NH4OH. After the preparation xerogels were characterized by FTIR, XRD, UV and LLS. All these techniques show the amorphous nature of Titania-silica xerogel. |
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Waseen, MuhammadShah, ZebanCataluña, Ricardo VerzaDias, Silvio Luis PereiraLima, Éder CláudioReis, Glaydson Simões dosVaghetti, Júlio César PachecoAlencar, Wagner Soares deMahmood, Khalid2017-06-20T02:31:22Z20172155-9872http://hdl.handle.net/10183/159714001023927The use of titania-silica materials in photocatalytic processes has been proposed as an alternative to the conventional TiO2 catalysts, in order to facilitate the separation of products after the reaction. However, despite the large number of research in this field, the mechanism governing the photocatalytic activity of the mixed TiO2/SiO2 oxides is not clear. Titania- Silica nanocomposite xerogels were prepared by sol-gel method. This work has been used to describe the synthesis and the photocatalytic properties of TiO2-SiO2 nanocomposite xerogel. The nanocomposite xerogels were prepared by keeping the molar ratio of TEOS:TTIP:MtOH:DIW at 1: 1:6:14 respectively and the catalysts used were HCl and NH4OH. After the preparation xerogels were characterized by FTIR, XRD, UV and LLS. All these techniques show the amorphous nature of Titania-silica xerogel.application/pdfengJournal of Analytical & Bioanalytical Techniques. Los Angeles. Vol. 8, no. 1 (Feb. 2017), 1000348FotocatáliseDióxido de titânioDióxido de silícioXerogelNanocompósitosPhotocatalysisTiO2-SiO2 mixed oxideLLSFTIRUVXRDPhotocatalytic studies of tio2/sio2 nanocomposite xerogelsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL001023927.pdf001023927.pdfTexto completo (inglês)application/pdf890469http://www.lume.ufrgs.br/bitstream/10183/159714/1/001023927.pdfd2285a61f21087cc7d040d55626f4d4dMD51TEXT001023927.pdf.txt001023927.pdf.txtExtracted Texttext/plain17865http://www.lume.ufrgs.br/bitstream/10183/159714/2/001023927.pdf.txt55b871868274391f01beb87a0cd9b24aMD5210183/1597142021-09-18 04:44:23.08193oai:www.lume.ufrgs.br:10183/159714Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-09-18T07:44:23Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Photocatalytic studies of tio2/sio2 nanocomposite xerogels |
title |
Photocatalytic studies of tio2/sio2 nanocomposite xerogels |
spellingShingle |
Photocatalytic studies of tio2/sio2 nanocomposite xerogels Waseen, Muhammad Fotocatálise Dióxido de titânio Dióxido de silício Xerogel Nanocompósitos Photocatalysis TiO2-SiO2 mixed oxide LLS FTIR UV XRD |
title_short |
Photocatalytic studies of tio2/sio2 nanocomposite xerogels |
title_full |
Photocatalytic studies of tio2/sio2 nanocomposite xerogels |
title_fullStr |
Photocatalytic studies of tio2/sio2 nanocomposite xerogels |
title_full_unstemmed |
Photocatalytic studies of tio2/sio2 nanocomposite xerogels |
title_sort |
Photocatalytic studies of tio2/sio2 nanocomposite xerogels |
author |
Waseen, Muhammad |
author_facet |
Waseen, Muhammad Shah, Zeban Cataluña, Ricardo Verza Dias, Silvio Luis Pereira Lima, Éder Cláudio Reis, Glaydson Simões dos Vaghetti, Júlio César Pacheco Alencar, Wagner Soares de Mahmood, Khalid |
author_role |
author |
author2 |
Shah, Zeban Cataluña, Ricardo Verza Dias, Silvio Luis Pereira Lima, Éder Cláudio Reis, Glaydson Simões dos Vaghetti, Júlio César Pacheco Alencar, Wagner Soares de Mahmood, Khalid |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Waseen, Muhammad Shah, Zeban Cataluña, Ricardo Verza Dias, Silvio Luis Pereira Lima, Éder Cláudio Reis, Glaydson Simões dos Vaghetti, Júlio César Pacheco Alencar, Wagner Soares de Mahmood, Khalid |
dc.subject.por.fl_str_mv |
Fotocatálise Dióxido de titânio Dióxido de silício Xerogel Nanocompósitos |
topic |
Fotocatálise Dióxido de titânio Dióxido de silício Xerogel Nanocompósitos Photocatalysis TiO2-SiO2 mixed oxide LLS FTIR UV XRD |
dc.subject.eng.fl_str_mv |
Photocatalysis TiO2-SiO2 mixed oxide LLS FTIR UV XRD |
description |
The use of titania-silica materials in photocatalytic processes has been proposed as an alternative to the conventional TiO2 catalysts, in order to facilitate the separation of products after the reaction. However, despite the large number of research in this field, the mechanism governing the photocatalytic activity of the mixed TiO2/SiO2 oxides is not clear. Titania- Silica nanocomposite xerogels were prepared by sol-gel method. This work has been used to describe the synthesis and the photocatalytic properties of TiO2-SiO2 nanocomposite xerogel. The nanocomposite xerogels were prepared by keeping the molar ratio of TEOS:TTIP:MtOH:DIW at 1: 1:6:14 respectively and the catalysts used were HCl and NH4OH. After the preparation xerogels were characterized by FTIR, XRD, UV and LLS. All these techniques show the amorphous nature of Titania-silica xerogel. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-06-20T02:31:22Z |
dc.date.issued.fl_str_mv |
2017 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/159714 |
dc.identifier.issn.pt_BR.fl_str_mv |
2155-9872 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001023927 |
identifier_str_mv |
2155-9872 001023927 |
url |
http://hdl.handle.net/10183/159714 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of Analytical & Bioanalytical Techniques. Los Angeles. Vol. 8, no. 1 (Feb. 2017), 1000348 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
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UFRGS |
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Repositório Institucional da UFRGS |
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Repositório Institucional da UFRGS |
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