Expanding the applications of the ilmenite mineral to the preparation of nanostructures : TiO2 nanorods and their photocatalytic properties in the degradation of oxalic acid

Tao, Tao, Chen, Ying, Zhou, Dan, Zhang, Hongzhou, Liu, Sanly, Amal, Rose., Sharma, Neeraj and Glushenkov, Alexey M. 2013, Expanding the applications of the ilmenite mineral to the preparation of nanostructures : TiO2 nanorods and their photocatalytic properties in the degradation of oxalic acid, Chemistry : a European journal, vol. 19, no. 3, pp. 1091-1096.

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Title Expanding the applications of the ilmenite mineral to the preparation of nanostructures : TiO2 nanorods and their photocatalytic properties in the degradation of oxalic acid
Formatted title Expanding the applications of the ilmenite mineral to the preparation of nanostructures : TiO2 nanorods and their photocatalytic properties in the degradation of oxalic acid
Author(s) Tao, Tao
Chen, Ying
Zhou, Dan
Zhang, Hongzhou
Liu, Sanly
Amal, Rose.
Sharma, Neeraj
Glushenkov, Alexey M.
Journal name Chemistry : a European journal
Volume number 19
Issue number 3
Start page 1091
End page 1096
Total pages 6
Publisher Wiley
Place of publication London, England
Publication date 2013-01-14
ISSN 0947-6539
1521-3765
Keyword(s) ball milling
ilmenite
nanostructures
photocatalysis
photochemistry
rutile
titanium
Summary The mineral ilmenite is one of the most abundant ores in the Earth′s crust and it is the main source for the industrial production of bulk titanium oxide. At the same time, methods to convert ilmenite into nanostructures of TiO2 (which are required for new advanced applications, such as solar cells, batteries, and photocatalysts) have not been explored to any significant extent. Herein, we describe a simple and effective method for the preparation of rutile TiO2 nanorods from ball-milled ilmenite. These nanorods have small dimensions (width: 5-20nm, length: 50-100nm, thickness: 2-5nm) and possess large specific surface areas (up to 97m2 g-1). Dissolution/hydrolysis/precipitation is proposed as a growth mechanism. The nanorods were found to have attractive photocatalytic properties in the degradation of oxalic acid. Their photocatalytic activity is close to that of the benchmark Degussa P25 material and better than that of a commercial high-surface-area rutile powder. Hot rods: Ilmenite (FeTiO3) is a major source of bulk TiO2 but ways to convert it into nanostructures of titanium oxide are scarce. Single-crystal TiO2 nanorods were synthesized from natural ilmenite by simple ball milling and acid treatment (see figure).
Language eng
Field of Research 109999 Technology not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
Persistent URL http://hdl.handle.net/10536/DRO/DU:30051139

Document type: Journal Article
Collection: Institute for Frontier Materials
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