Synthesis of Visible-Light-Activated Yellow Amorphous TiO2 Photocatalyst
Joint Authors
Robertson, Peter K. J.
Irvine, John T. S.
Randorn, Chamnan
Source
International Journal of Photoenergy
Issue
Vol. 2008, Issue 2008 (31 Dec. 2008), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2008-05-26
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Visible-light-activated yellow amorphous TiO2 (yam-TiO2) was synthesised by a simple and organic-free precipitation method.
TiN, an alternative precursor for TiO2 preparation, was dissolved in hydrogen peroxide under acidic condition (pH∼1) adjusted by nitric acid.
The yellow precipitate was obtained after adjusting pH of the resultant red brown solution to 2 with NH4OH.
The BET surface area of this sample was 261 m2/g.
The visible light photoactivity was evaluated on the basis of the photobleaching of methylene blue (MB) in an aqueous solution by using a 250 W metal halide bulb equipped with UV cutoff filter (λ>420 nm) under aerobic conditions.
Yam-TiO2 exhibits an interesting property of being both surface adsorbent and photoactive under visible light.
It was assigned to the η2-peroxide, an active intermediate form of the addition of H2O2 into crystallined TiO2 photocatalyst.
It can be concluded that an active intermediate form of titanium peroxo species in photocatalytic process can be synthesised and used as a visible-light-driven photocatalyst.
American Psychological Association (APA)
Randorn, Chamnan& Irvine, John T. S.& Robertson, Peter K. J.. 2008. Synthesis of Visible-Light-Activated Yellow Amorphous TiO2 Photocatalyst. International Journal of Photoenergy،Vol. 2008, no. 2008, pp.1-6.
https://search.emarefa.net/detail/BIM-987929
Modern Language Association (MLA)
Randorn, Chamnan…[et al.]. Synthesis of Visible-Light-Activated Yellow Amorphous TiO2 Photocatalyst. International Journal of Photoenergy No. 2008 (2008), pp.1-6.
https://search.emarefa.net/detail/BIM-987929
American Medical Association (AMA)
Randorn, Chamnan& Irvine, John T. S.& Robertson, Peter K. J.. Synthesis of Visible-Light-Activated Yellow Amorphous TiO2 Photocatalyst. International Journal of Photoenergy. 2008. Vol. 2008, no. 2008, pp.1-6.
https://search.emarefa.net/detail/BIM-987929
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-987929