title: Study of gamma irradiation effect on commercial TiO2 photocatalyst.
abstract: The aim of this work is to understand the effect of gamma irradiation on commercial TiO2 photocatalyst for water treatment applications. Previous studies concluded that gamma-irradiation is able to modify the electronic properties of TiO2 based photocatalysts and consequently their photocatalytic performance. However, there are some discrepancies in the literature where on one hand a significant enhancement of the material properties is reported and on the other hand only a weak effect is observed. In this study a surface effect on TiO2 is confirmed by using low and medium gamma irradiation doses.
authors.affiliation: School of Science and Health, University of Western Sydney (UWS), Locked Bag 1797, Penrith, NSW 2751, Australia. Electronic address: marta.bello@uws.edu.au.
authors.forename: M P
authors.initials: MP
authors.lastname: Bello Lamo
authors.affiliation: School of Science and Health, University of Western Sydney (UWS), Locked Bag 1797, Penrith, NSW 2751, Australia.
authors.forename: P
authors.initials: P
authors.lastname: Williams
authors.affiliation: The University of New South Wales, School of Physics, Sydney, NSW 2052, Australia.
authors.forename: P
authors.initials: P
authors.lastname: Reece
authors.affiliation: Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, NSW 2232, Australia.
authors.forename: G R
authors.initials: GR
authors.lastname: Lumpkin
authors.affiliation: Solar Energy Technologies Research Group, School of Computing, Engineering and Mathematics, University of Western Sydney, Locked Bag 1797, Penrith, NSW 2751, Australia.
authors.forename: L R
authors.initials: LR
authors.lastname: Sheppard
mesh_terms: D002384:Catalysis; D005720:Gamma Rays; D008855:Microscopy, Electron, Scanning; D056951:Photoelectron Spectroscopy; D013056:Spectrophotometry, Ultraviolet; D014025:Titanium / Q000528:radiation effects*; D018508:Water Purification / Q000379:methods
chemical_list: C009495:titanium dioxide; D014025:Titanium
keywords: Gamma irradiation; Photocatalysis; Surface properties; TiO(2)