Abstract
An expedite one-step approach using simple precursors has been proposed to obtain metallic oxide compounds and exemplified by preparation of highly dispersed TiO2. The technique consists in heating to 400500 °C of molten ammonium nitrate stabilized with an organic nitrogen-containing compound (urea, melamine, ammonium oxalate) and containing dissolved metal salt precursor (TiOCl2). The crystallites of the resulting TiO2 demonstrated variable size and shape as a function of stabilizer used. Their activity in photocatalytic oxidation of formic acid also depends on the nature of the stabilizer. The catalysts as-prepared showed high photocatalytic performance, superior to that of the Degussa P25 reference. Nitrogen containing stabilizers play a double role of increasing the process safety and modifying the properties of the solid products. © 2010 Elsevier Inc. All rights reserved.
Original language | English (US) |
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Pages (from-to) | 2438-2444 |
Number of pages | 7 |
Journal | Journal of Solid State Chemistry |
Volume | 183 |
Issue number | 10 |
DOIs | |
State | Published - Oct 2010 |
Externally published | Yes |
Bibliographical note
KAUST Repository Item: Exported on 2020-10-01Acknowledged KAUST grant number(s): UK-C0017
Acknowledgements: Anna Kachina expresses her gratitude to King Abdullah University of Science and Technology (award no. UK-C0017).
This publication acknowledges KAUST support, but has no KAUST affiliated authors.