ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
TiO2 is one kind of semiconductor-based photocatalyst. TiO2 shows relatively high reactivityand chemical stability under ultraviolet (UV) light. However TiO2 is a poor absorber of photons in visiblelight. In order to improve the absorption efficiency, the coatings of TiO2/WO3, WO3 and TiO2 on ITOwere prepared by liquid phase deposition (LPD) and dip coating method, their microstructure, surfaceproperties, photoelectrochemical properties are investigated in this paper. XRD results showed that thephases on the composite coatings are mainly anatase, rutile and WO3 respectively, the SEM resultsshowed that the coatings of TiO2 and TiO2/WO3 are distributed evenly on the materials surface. Theelectrochemical experiment results showed that open circuit potential of TiO2 and TiO2/WO3 withpresence of the UV light illumination were about -343 mV and –650 mV respectively, comparatively therest potential of 304 stainless steel is about 48 mV, which means that the TiO2 or TiO2/WO3 coatings canprotect 304 stainless steel from corrosion, and TiO2/WO3 coatings retained for a while anticorrosion evenabsence of UV light
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/53/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.336-338.2203.pdf
