Gel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generation

Detalhes bibliográficos
Autor(a) principal: Ramasami, Alamelu Kannan
Data de Publicação: 2017
Outros Autores: Ravishankar, Thammadihalli Nanjundaiah, Nagaraju, Ganganagappa, Ramakrishnappa, Thippeswamy, Teixeira, Sergio Ribeiro, Balakrishna, R. Geetha
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/169602
Resumo: Zinc oxide nanoparticles (ZnO NPs) synthesized by the gel combustion technique using a bio-fuel, cassava starch (root tubers of Manihot esculenta), have been characterized by various techniques. The X-ray diffraction pattern reveals hexagonal wurtzite structure. The particle size averaged around 45nm with an excellent band gap of 2.5 eV. The scanning electron and transmission electron microscopic images confirm the ZnO NPs to be agglomerated with loop- and chain-like morphology. The ZnO NPs prepared by this method is a promising candidate for photocatalytic hydrogen generation (41 μmol h−1 g−1) under UV light illumination and (140 μmol h−1 g−1) under visible light illumination.
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spelling Ramasami, Alamelu KannanRavishankar, Thammadihalli NanjundaiahNagaraju, GanganagappaRamakrishnappa, ThippeswamyTeixeira, Sergio RibeiroBalakrishna, R. Geetha2017-10-20T02:26:24Z20170973-7669http://hdl.handle.net/10183/169602001045150Zinc oxide nanoparticles (ZnO NPs) synthesized by the gel combustion technique using a bio-fuel, cassava starch (root tubers of Manihot esculenta), have been characterized by various techniques. The X-ray diffraction pattern reveals hexagonal wurtzite structure. The particle size averaged around 45nm with an excellent band gap of 2.5 eV. The scanning electron and transmission electron microscopic images confirm the ZnO NPs to be agglomerated with loop- and chain-like morphology. The ZnO NPs prepared by this method is a promising candidate for photocatalytic hydrogen generation (41 μmol h−1 g−1) under UV light illumination and (140 μmol h−1 g−1) under visible light illumination.application/pdfengBulletin of materials science. Bangalore. Vol. 40, no. 2 (Apr. 2017), p. 345–354NanopartículasÓxido de zincoProdução de hidrogênioFotocatáliseEspectroscopia de fotoelétrons excitados por raios XEspectroscopia RamanAmido de mandiocaZnO nanoparticlesGel combustionCassava starchHydrogen generationVisible lightGel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generationEstrangeiroinfo: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:UFRGSORIGINAL001045150.pdf001045150.pdfTexto completo (inglês)application/pdf1395955http://www.lume.ufrgs.br/bitstream/10183/169602/1/001045150.pdfd01934b4ecdddea0dfd56be39cc25f95MD51TEXT001045150.pdf.txt001045150.pdf.txtExtracted Texttext/plain37171http://www.lume.ufrgs.br/bitstream/10183/169602/2/001045150.pdf.txt6bbebc63420e86d446b1917be6dd1f12MD52THUMBNAIL001045150.pdf.jpg001045150.pdf.jpgGenerated Thumbnailimage/jpeg2160http://www.lume.ufrgs.br/bitstream/10183/169602/3/001045150.pdf.jpge45c2b8fb5a5a39df0925b250b778447MD5310183/1696022022-04-20 04:55:00.018704oai:www.lume.ufrgs.br:10183/169602Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-04-20T07:55Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Gel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generation
title Gel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generation
spellingShingle Gel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generation
Ramasami, Alamelu Kannan
Nanopartículas
Óxido de zinco
Produção de hidrogênio
Fotocatálise
Espectroscopia de fotoelétrons excitados por raios X
Espectroscopia Raman
Amido de mandioca
ZnO nanoparticles
Gel combustion
Cassava starch
Hydrogen generation
Visible light
title_short Gel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generation
title_full Gel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generation
title_fullStr Gel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generation
title_full_unstemmed Gel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generation
title_sort Gel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generation
author Ramasami, Alamelu Kannan
author_facet Ramasami, Alamelu Kannan
Ravishankar, Thammadihalli Nanjundaiah
Nagaraju, Ganganagappa
Ramakrishnappa, Thippeswamy
Teixeira, Sergio Ribeiro
Balakrishna, R. Geetha
author_role author
author2 Ravishankar, Thammadihalli Nanjundaiah
Nagaraju, Ganganagappa
Ramakrishnappa, Thippeswamy
Teixeira, Sergio Ribeiro
Balakrishna, R. Geetha
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Ramasami, Alamelu Kannan
Ravishankar, Thammadihalli Nanjundaiah
Nagaraju, Ganganagappa
Ramakrishnappa, Thippeswamy
Teixeira, Sergio Ribeiro
Balakrishna, R. Geetha
dc.subject.por.fl_str_mv Nanopartículas
Óxido de zinco
Produção de hidrogênio
Fotocatálise
Espectroscopia de fotoelétrons excitados por raios X
Espectroscopia Raman
Amido de mandioca
topic Nanopartículas
Óxido de zinco
Produção de hidrogênio
Fotocatálise
Espectroscopia de fotoelétrons excitados por raios X
Espectroscopia Raman
Amido de mandioca
ZnO nanoparticles
Gel combustion
Cassava starch
Hydrogen generation
Visible light
dc.subject.eng.fl_str_mv ZnO nanoparticles
Gel combustion
Cassava starch
Hydrogen generation
Visible light
description Zinc oxide nanoparticles (ZnO NPs) synthesized by the gel combustion technique using a bio-fuel, cassava starch (root tubers of Manihot esculenta), have been characterized by various techniques. The X-ray diffraction pattern reveals hexagonal wurtzite structure. The particle size averaged around 45nm with an excellent band gap of 2.5 eV. The scanning electron and transmission electron microscopic images confirm the ZnO NPs to be agglomerated with loop- and chain-like morphology. The ZnO NPs prepared by this method is a promising candidate for photocatalytic hydrogen generation (41 μmol h−1 g−1) under UV light illumination and (140 μmol h−1 g−1) under visible light illumination.
publishDate 2017
dc.date.accessioned.fl_str_mv 2017-10-20T02:26:24Z
dc.date.issued.fl_str_mv 2017
dc.type.driver.fl_str_mv Estrangeiro
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dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/169602
dc.identifier.issn.pt_BR.fl_str_mv 0973-7669
dc.identifier.nrb.pt_BR.fl_str_mv 001045150
identifier_str_mv 0973-7669
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url http://hdl.handle.net/10183/169602
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Bulletin of materials science. Bangalore. Vol. 40, no. 2 (Apr. 2017), p. 345–354
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
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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