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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/155162
- Title
- Synthesis and characterization of nanostructured Ag on porous titania
- Author(s)
- Wen, Ming; Li, Yanqiong; Zhang, Junmin; Guan, Weiming; Wen, Cui'e; Hodgson, Peter
- Abstract
- In this work, porous titania was prepared on bulk Ti by chemical oxidation, and then nanostructured silver (Ag) was deposited on titania surface by ion beam sputtering. After annealing treatment, Ag/TiO2 composites were characterized using X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Results indicated that a nano-porous titania layer with mean pore size of 150 nm and thickness of 1 μm was formed by chemical oxidation at 80 °C for 45 min. There were three Ag species (Ag (0), Ag (1+), and Ag (2+)) on composites surface after annealing treatment, and metallic Ag content achieved maximum value with annealing temperature of 500 °C in air. Ag showed high thermal stability being partly attributed to the inhibiting the diffusion of Ag by the underlying porous titania.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Industrial Research Institute Swinburne
- Source
- Applied Surface Science, Vol. 257, no. 11 (Mar 2011), pp. 4836-4843
- Publication year
- 2011
- FOR Code(s)
- 0204 Condensed Matter Physics; 0912 Materials Engineering
- Keyword(s)
- Nanostructured Ag; Oxidation; Porous titania; Thermal stability
- Publisher
- Elsevier B.V.
- ISSN
- 0169-4332
- Publisher URL
- http://dx.doi.org/10.1016/j.apsusc.2010.12.102
- Copyright
- Copyright © 2010 Elsevier B.V. All rights reserved.
- Peer reviewed
