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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Formation and evolution of TiO2 nanotubes in alkaline synthesis

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Autor(es):
Arruda, Larisa B. [1] ; Santos, Cassio M. [2] ; Orlandi, Marcelo O. [3] ; Schreiner, Wido H. [4] ; Lisboa-Filho, Paulo N. [5]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] POSMAT Programa Posgrad Ciencia & Tecnol Mat UNES, Bauru - Brazil
[2] Univ Fed Ceara, Dept Fis, Fortaleza, Ceara - Brazil
[3] UNESP Univ Estadual Paulista, Inst Quim, Dept Fis Quim, Araraquara - Brazil
[4] UFPR Univ Fed Parana, Dept Fis, Curitiba, Parana - Brazil
[5] UNESP Univ Estadual Paulista, Fac Ciencias, Dept Fis, Bauru - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: CERAMICS INTERNATIONAL; v. 41, n. 2, B, p. 2884-2891, MAR 2015.
Citações Web of Science: 14
Resumo

One-dimensional nanostructures have been intensively studied, from the point of view of their synthesis and mechanics of formation, as well as their applications. Titanium dioxide nanoparticles have been demonstrated to be an effective multifunctional material, especially when the particle size is less than 50 nm. TiO2 nanotubes with diameters of about 10 nm were synthesized by the alkaline route. The synthesized samples were then studied by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Analyses revealed that the nanotubes were mainly composed of titanium and oxygen, with small amounts of sodium ions in the sample obtained at pH 7 and no sodium at pH 4. The nanotubes obtained showed multiple walls, with dimensions of 5 nm in diameter and about 200 nm in length. In addition, the formation of the nanotubes occurred from a single crystal of TiO2 during the washing process. (C) 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved. (AU)

Processo FAPESP: 11/22098-7 - Nanotubos de semicondutores óxidos: novas estratégias de síntese e estudo das propriedades estruturais e ópticas
Beneficiário:Paulo Noronha Lisboa Filho
Linha de fomento: Auxílio à Pesquisa - Regular