Easy and Fast Preparation of TiO2 - based Nanostructures Using Microwave Assisted Hydrothermal Synthesis

Página do item simplificado
dc.contributor.authorBregadiolli, Bruna Andressa [UNESP]
dc.contributor.authorFernandes, Silvia Leticia [UNESP]
dc.contributor.authorOliveira Graeff, Carlos Frederico de [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2018-11-26T17:40:36Z
dc.date.available2018-11-26T17:40:36Z
dc.date.issued2017-07-01
dc.description.abstractTiO2 derivatives with distinct morphologies have been successfully obtained by microwave assisted hydrothermal synthesis in acidic and alkaline medium using mild conditions. Titanium tetraisopropoxide (TTIP) was used as precursor in different environmental conditions under low temperatures, inferior to 150 degrees C, and short synthesis times, from 2 to 60 min. X ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N 2 adsorption at 77 K (BET) were used to characterize the microstructural properties of the oxides. In the acidic synthesis the reaction time and temperature are not accompanied by significant changes in the structure of the material. However, in the basic conditions, the concentration of Na+ ions strongly influences the particle morphology and growth. The morphology of the nanoparticles shows irregular spheres in acidic conditions, while in alkaline medium, needle like structures are formed as well as aggregated nanotube-like structures synthesized in only 30 min. Besides the difference in the morphology and structure, in both systems, high surface area was obtained.en
dc.description.affiliationUniv Estadual Paulista, POSMAT, Ave Engn Luiz Edmundo C Coube 14-01, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Inst Quim Araraquara, Prof Francisco Degni 55, BR-14800060 Araraquara, SP, Brazil
dc.description.affiliationUniv Estadual Paulista, Dept Fis, Ave Engn Luiz Edmundo C Coube 14-01, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, POSMAT, Ave Engn Luiz Edmundo C Coube 14-01, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Quim Araraquara, Prof Francisco Degni 55, BR-14800060 Araraquara, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Fis, Ave Engn Luiz Edmundo C Coube 14-01, BR-17033360 Bauru, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipINCT
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdFAPESP: 2011/02205-3
dc.description.sponsorshipIdFAPESP: 2013/07296-2
dc.format.extent912-919
dc.identifierhttp://dx.doi.org/10.1590/1980-5373-MR-2016-0684
dc.identifier.citationMaterials Research-ibero-american Journal Of Materials. Sao Carlos: Univ Fed Sao Carlos, Dept Engenharia Materials, v. 20, n. 4, p. 912-919, 2017.
dc.identifier.doi10.1590/1980-5373-MR-2016-0684
dc.identifier.fileS1516-14392017000400912.pdf
dc.identifier.issn1516-1439
dc.identifier.scieloS1516-14392017000400912
dc.identifier.urihttp://hdl.handle.net/11449/163234
dc.identifier.wosWOS:000410628100009
dc.language.isoeng
dc.publisherUniv Fed Sao Carlos, Dept Engenharia Materials
dc.relation.ispartofMaterials Research-ibero-american Journal Of Materials
dc.relation.ispartofsjr0,398
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectnanostructures
dc.subjecttitanium dioxide
dc.subjectmicrowave assisted hydrothermal synthesis
dc.subjectcrystal growth
dc.titleEasy and Fast Preparation of TiO2 - based Nanostructures Using Microwave Assisted Hydrothermal Synthesisen
dc.typeArtigo
dcterms.rightsHolderUniv Fed Sao Carlos, Dept Engenharia Materials
unesp.author.lattes5268607684223281[3]
unesp.author.orcid0000-0003-0162-8273[3]
unesp.departmentFísica - FCpt

Arquivos

Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
S1516-14392017000400912.pdf
Tamanho:
1.45 MB
Formato:
Adobe Portable Document Format
Baixar

Coleções

Bauru - FC - Faculdade de Ciências