Synthesis of recrystallized anatase TiO2 mesocrystals with Wulff shape assisted by oriented attachment

dc.creatorDa Silva, RO
dc.creatorGoncalves, RH
dc.creatorStroppa, DG
dc.creatorRamirez, AJ
dc.creatorLeite, ER
dc.date2011
dc.date2014-08-01T18:27:35Z
dc.date2015-11-26T17:07:15Z
dc.date2014-08-01T18:27:35Z
dc.date2015-11-26T17:07:15Z
dc.date.accessioned2018-03-28T23:55:46Z
dc.date.available2018-03-28T23:55:46Z
dc.identifierNanoscale. Royal Soc Chemistry, v. 3, n. 4, n. 1910, n. 1916, 2011.
dc.identifier2040-3364
dc.identifierWOS:000289306900080
dc.identifier10.1039/c0nr01016b
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/79258
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/79258
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1280074
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionIn this work, we describe a kinetically controlled crystallization process assisted by an oriented attachment (OA) mechanism based on a nonaqueous sol-gel synthetic method (specifically, the reaction of titanium(IV) chloride (TiCl4) with n-octanol) to prepare re-crystallized anatase TiO2 mesocrystals (single crystal). The kinetics study revealed a multi-step and hierarchical process controlled by OA, and a high resolution transmission electron microscopy (HRTEM) analysis clearly shows that the synthesized mesocrystal presents a truncated bipyramidal Wulff shape, indicating that its surface is dominated by {101} facets. This shape is developed during the recrystallization step. The material developed here displayed superior photocatalytic activity under visible light irradiation compared to TiO2-P25 as a benchmarking.
dc.description3
dc.description4
dc.description1910
dc.description1916
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFINEP
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFAPESP [98/14324-0]
dc.languageen
dc.publisherRoyal Soc Chemistry
dc.publisherCambridge
dc.publisherInglaterra
dc.relationNanoscale
dc.relationNanoscale
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectPreformed Titania Nanocrystals
dc.subject001 Facets
dc.subjectTransformation
dc.subjectPercentage
dc.subjectMorphology
dc.subjectNanosheets
dc.subjectRoutes
dc.subjectOxide
dc.titleSynthesis of recrystallized anatase TiO2 mesocrystals with Wulff shape assisted by oriented attachment
dc.typeArtículos de revistas


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