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
收藏
页码：99 / 103
页数：5
相关论文
共 50 条
  • [21] UV-VIS studies of nylon degradation.
    Bernstein, R
    Derzon, DK
    Gillen, KT
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2003, 225 : U558 - U558
  • [22] The use of UV-VIS spectroscopy in electrochemical studies
    Chotkowski, Maciej
    Rogulski, Zbigniew
    Czerwinski, Andrzej A.
    PRZEMYSL CHEMICZNY, 2006, 85 (11): : 1481 - 1487
  • [23] In situ EPR/UV-VIS spectroelectrochemistry of polypyrrole redox cycling
    Rapta, P
    Neudeck, A
    Petr, A
    Dunsch, L
    JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1998, 94 (24): : 3625 - 3630
  • [24] Characteristics of curcumin using cyclic voltammetry, UV-vis, fluorescence and thermogravimetric analysis
    Masek, Anna
    Chrzescijanska, Ewa
    Zaborski, Marian
    ELECTROCHIMICA ACTA, 2013, 107 : 441 - 447
  • [25] UV-vis spectroscopic characterization of inclusion compounds of β-cyclodextrin with lycopene
    Wang, LX
    Lü, J
    Du, ZL
    Li, RX
    Wu, DC
    SPECTROSCOPY AND SPECTRAL ANALYSIS, 2004, 24 (02) : 183 - 186
  • [26] A study of UV-vis spectroscopic and DFT calculation of the UV absorber in different solvent
    Yang, Jung-Won
    Choi, Jin-Kyu
    Kim, Min-Chan
    Kim, Hyunwoo
    PROGRESS IN ORGANIC COATINGS, 2019, 135 : 168 - 175
  • [27] UV-Vis spectroscopic characterization of Sudan series in organic solution
    Zhang, Jin-Ping
    Yang, Sheng-Ke
    Duan, Lei
    Wang, Wen-Ke
    Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis, 2007, 27 (05): : 982 - 985
  • [28] A UV-Vis Spectroscopic Study of the Auto-Oxidation of Adrenaline
    Ivanova, M. A.
    Nefedova, E. K.
    Mal'tseva, E. M.
    Kalensii, A., V
    Zvekov, A. A.
    JOURNAL OF APPLIED SPECTROSCOPY, 2022, 89 (05) : 905 - 912
  • [29] UV-vis spectroscopic Investigation on γ-irradiated alkali aluminoborate glasses
    Chopra, N.
    Singh, N. P.
    Baccaro, S.
    Sharma, G.
    PHYSICA B-CONDENSED MATTER, 2012, 407 (08) : 1209 - 1213
  • [30] UV-VIS spectroscopic investigations of amber glass at high temperatures
    Müller, M
    Rüssel, C
    Claussen, O
    GLASS SCIENCE AND TECHNOLOGY-GLASTECHNISCHE BERICHTE, 1999, 72 (11): : 362 - 366
12345