Gel-combustion-synthesized ZnO nanoparticles for visible light-assisted photocatalytic hydrogen generation
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/10183/169602 |
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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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 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/10183/169602 |
dc.identifier.issn.pt_BR.fl_str_mv |
0973-7669 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001045150 |
identifier_str_mv |
0973-7669 001045150 |
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 |
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Repositório Institucional da UFRGS |
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Repositório Institucional da UFRGS |
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