Table of Contents
Journal of Inorganic Chemistry
Volume 2014, Article ID 705493, 8 pages
http://dx.doi.org/10.1155/2014/705493
Research Article

Synthesis and Characterization of Rutile Pigments with Cr and Nb

1Department of Inorganic Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
2Institute of Environmental and Chemical Engineering, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic

Received 29 May 2014; Revised 7 August 2014; Accepted 19 August 2014; Published 2 September 2014

Academic Editor: Roman Boča

Copyright © 2014 Jan Večeřa et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Rutile pigments (where , 0.05, 0.10, 0.20, 0.30 and 0.50) prepared by solid-state reaction are investigated. Chromium is chromophore (coloring ion) and niobium is counterion (charge-compensating element for electroneutrality). The effect of composition (x), calcination temperature (850, 900, 950, 1000, 1050, 1100 and 1150°C), and starting titanium compounds (anatase TiO2, hydrated anatase paste, TiOSO42H2O, and hydrated Na2Ti4O9 paste) on their color properties into organic matrix and particle size distribution was observed. According to the highest chroma C and visual color evaluation, yellow and orange pigments were selected as in color the most interesting. They have concentration or 0.10 and are prepared from anatase TiO2 and TiOSO42H2O at temperature 1050°C.