Thermogravimetric and UV-vis spectroscopic studies of chromium redox reactions in rutile pigments

被引：9

作者：

Vieira, F. T. G. ^{[1
]}

Souza, Soraia C. ^{[1
]}

Oliveira, A. L. M. ^{[1
]}

Lima, S. J. G. ^{[2
]}

Longo, E. ^{[3
]}

Paskocimas, C. A. ^{[4
]}

Soledade, L. E. B. ^{[1
]}

Souza, A. G. ^{[1
]}

Santos, Ieda M. G. ^{[1
]}

机构：

[1] Univ Fed Paraiba, Lab Combust & Mat, Dept Quim, BR-58059900 Joao Pessoa, Paraiba, Brazil

[2] Univ Fed Paraiba, LSR, Dept Engn Mecan CT, BR-58059900 Joao Pessoa, Paraiba, Brazil

[3] UNESP, Inst Quim, LIEC, CMDMC, Araraquara, SP, Brazil

[4] Univ Fed Rio Grande do Norte, Dept Mat Engn, BR-59072970 Natal, RN, Brazil

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2009年 / 97卷 / 01期

关键词：

Pechini; Thermal analysis; TiO2; Redox reactions; CERAMIC PIGMENTS; COUNTERIONS MO; CR; MN; NI; SB; ANATASE; COLOR; NB; CO;

D O I：

10.1007/s10973-009-0074-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

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 A degrees C, rutile was obtained as a single phase material without the presence of Cr6+.

引用

页码：99 / 103

页数：5

共 50 条

[31] UV-Vis spectroscopic characterization of Sudan series in organic solution
Zhang Jin-ping
Yang Sheng-ke
Duan Lei
Wang Wen-ke
SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27 (05) : 982 - 985
[32] A UV-Vis Spectroscopic Study of the Auto-Oxidation of Adrenaline
M. A. Ivanova
E. K. Nefedova
E. M. Mal’tseva
A. V. Kalensii
A. A. Zvekov
Journal of Applied Spectroscopy, 2022, 89 : 905 - 912
[33] UV-VIS SPECTROSCOPIC STUDY OF NATURAL DYES WITH ALUM AS A MORDANT
Septhum, Chutima
Rattanaphani, Vichitr
Rattanaphani, Saowanee
SURANAREE JOURNAL OF SCIENCE AND TECHNOLOGY, 2007, 14 (01): : 91 - 97
[34] X-Ray Diffraction, FTIR, UV-VIS And SEM Studies On Chromium (III) Complexes
Mishra, Ashutosh
Dwivedi, Jagrati
Shukla, Kritika
PROCEEDINGS OF THE 59TH DAE SOLID STATE PHYSICS SYMPOSIUM 2014 (SOLID STATE PHYSICS), 2015, 1665
[35] Ligand-human serum albumin analysis: the near-UV CD and UV-Vis spectroscopic studies
Rogoz, Wojciech
Owczarzy, Aleksandra
Kulig, Karolina
Maciazek-Jurczyk, Malgorzata
NAUNYN-SCHMIEDEBERGS ARCHIVES OF PHARMACOLOGY, 2025, 398 (03) : 3119 - 3131
[36] UV-VIS SPECTROSCOPIC AND THEORETICAL-STUDIES ABOUT CARBOCATION FORMATION ON SOLID-SURFACES
KIRICSI, I
TASI, G
FORSTER, H
FEJES, P
JOURNAL OF MOLECULAR STRUCTURE, 1990, 218 : 369 - 374
[37] Synthesis, spectroscopic (UV-vis and GIAO NMR), crystallographic and theoretical studies of triazine heterocyclic derivatives
Khan, Salman A.
Obaid, Abdullah Y.
Al-Harbi, Laila M.
Arshad, Muhammad Nadeem
Sahin, Onur
Ersanli, Cem Cuneyt
Abdel-Rehman, R. M.
Asiri, Abdullah M.
Hursthouse, Michael B.
JOURNAL OF MOLECULAR STRUCTURE, 2015, 1096 : 29 - 37
[38] A UV-vis spectroelectrochemical study of redox reactions of solution species at a polyaniline electrode in the conducting and the reduced state
Malinauskas, A
Holze, R
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1999, 461 (1-2): : 184 - 193
[39] UV-vis spectroscopic studies of CaF2 photo-thereto-refractive glass
Stoica, Martina
Herrmann, Andreas
Hein, Joachim
Ruessel, Christian
OPTICAL MATERIALS, 2016, 62 : 424 - 432
[40] Detection and Degradation Studies of Nile Blue Sulphate Using Electrochemical and UV-Vis Spectroscopic Techniques
Saleem, Muhammad Nadir
Shah, Afzal
Ullah, Naimat
Nisar, Jan
Iftikhar, Faiza Jan
CATALYSTS, 2023, 13 (01)

← 1 2 3 4 5 →