Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 97: Issue 1
Thermogravimetric and UV–vis spectroscopic studies of chromium redox reactions in rutile pigments
Authors:
F. Vieira Universidade Federal da Paraíba Laboratório de Combustíveis e Materiais, Departamento de Química Campus I João Pessoa PB Brazil

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Soraia Souza Universidade Federal da Paraíba Laboratório de Combustíveis e Materiais, Departamento de Química Campus I João Pessoa PB Brazil

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A. Oliveira Universidade Federal da Paraíba Laboratório de Combustíveis e Materiais, Departamento de Química Campus I João Pessoa PB Brazil

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S. Lima Universidade Federal da Paraíba LSR, Departamento de Engenharia Mecânica/CT Campus I João Pessoa PB Brazil

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E. Longo CMDMC-LIEC, Instituto de Química, UNESP Araraquara SP Brazil

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C. Paskocimas Universidade Federal do Rio Grande do Norte Departamento de Engenharia de Materiais Natal RN Brazil

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L. Soledade Universidade Federal da Paraíba Laboratório de Combustíveis e Materiais, Departamento de Química Campus I João Pessoa PB Brazil

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A. Souza Universidade Federal da Paraíba Laboratório de Combustíveis e Materiais, Departamento de Química Campus I João Pessoa PB Brazil

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Iêda Santos Universidade Federal da Paraíba Laboratório de Combustíveis e Materiais, Departamento de Química Campus I João Pessoa PB Brazil

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Pages:
99–103
Online Publication Date:
24 Jun 2009
Publication Date:
01 Jul 2009
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-009-0074-8
Keywords:
Pechini; Thermal analysis; TiO2; Redox reactions
Restricted access

Abstract  

In this study undoped and Cr, Sb or Mo doped TiO2 were synthesized by polymeric precursor method and characterized by X-ray diffraction, UV–VIS spectroscopy, infrared spectroscopy and thermogravimetry (TG). The TG curves showed a continuous mass loss assigned to the hydroxyl elimination and Cr6+ reduction. Doped TiO2 samples showed a higher mass loss assigned to water and gas elimination at lower temperatures. In these doped materials a decrease in the anatase–rutile phase transition temperature was observed. After calcination at 1,000 °C, rutile was obtained as a single phase material without the presence of Cr6+.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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