OpenAIR @ RGU >
Health and Social Care >
Pharmacy & Life Sciences >
Journal articles (Pharmacy & Life Sciences) >

Please use this identifier to cite or link to this item:
This item has been viewed 8 times in the last year. View Statistics

Files in This Item:

File Description SizeFormat
Robertson Applied Surface Science 2004.pdf70.28 kBAdobe PDFView/Open
Title: On-line monitoring of laser modification of titanium dioxide using optical surface second harmonic.
Authors: Vrillet, Guerric
Lee, Soo-Keun
McStay, Daniel
Robertson, Peter K. J.
Keywords: Photocatalysis
Surface second harmonic generation
Laser treatment
Colour change
Structure change
Issue Date: Jan-2004
Publisher: Elsevier
Citation: VRILLET, G., LEE, S. K., McSTAY, D. and ROBERTSON, P. K. J., 2004. On-line monitoring of laser modification of titanium dioxide using optical surface second harmonic. Applied Surface Science, 222 (1-4), pp. 33-42.
Abstract: TiO2 photocatalysis is a promising technology for the destruction of organic pollutants in both waste and potable waters with the mineralisation of a wide range of compounds having been reported. TiO2 has many advantages over other semiconductors, it is highly photoreactive, cheap, non-toxic, chemically and biologically inert, and photostable. The photocatalytic activity of TiO2 has been shown to depend upon many criteria including the ratio of anatase/rutile crystal phase, particle size and oxidation state. This paper reports the use of optical surface second harmonic generation (SSHG) to monitor modifications in TiO2 powder induced following laser treatment. SSHG is a non-contact, non-destructive technique, which is highly sensitive to both surface chemical and physical changes. Results show that three different SSH intensities were observable as the TiO2 samples were irradiated with the laser light. These regions were related to changes in chemical characteristics and particle size of the TiO2 powder.
ISSN: 0169-4332
Appears in Collections:Journal articles (Pharmacy & Life Sciences)

All items in OpenAIR are protected by copyright, with all rights reserved.


   Disclaimer | Freedom of Information | Privacy Statement |Copyright ©2012 Robert Gordon University, Garthdee House, Garthdee Road, Aberdeen, AB10 7QB, Scotland, UK: a Scottish charity, registration No. SC013781