Surface layer composition of titania produced by various methods. The change of layer state under illumination

2nd International Symposium on Fundamental Aspects of Rare-earth Elements Mining and Separation and Modern Materials Engineering

材料科学;物理学

Zakharenko, V.^1 ; Daibova, E.^2 ; Kosova, N.^3 ; Zmeeva, O.^2

Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia^1

Siberian Research Institute of Agriculture and Peat, Tomsk, Russia^2

Tomsk State University, Tomsk

634050, Russia^3

关键词: Comparative analysis;    High temperature heating;    Lattice oxygen;    Micro particles;    Surface layer composition;    Titania powders;    Titanium dioxide powder;    UV irradiation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/112/1/012015/pdf
DOI  :  10.1088/1757-899X/112/1/012015

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The comparative analysis of experimental data over titanium dioxide powders prepared by various ways under ambient air is carried out. The results over TiO2prepared by high-temperature heating of anatase, produced by burning of titanium micro particles and grinding of rutile crystal are used for that comparison. Water and carbon dioxide were the main products released from the surface of the titania powders. It was found that under UV irradiation absorbed by titania, in absent oxygen, water effectively reacts with lattice oxygen of titanium dioxide.