ISSN:
1662-8985
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:
With Ti(OBu)4 as precursor, and HAC as complexing agent, pure and Fe-doped TiO2gelatins were prepared by sol-gel method. During the process of gel formation, metal ions weredispersed into the porous TiO2 matrix. Then, powders of pure nano-TiO2 and Fe-doped nano-TiO2were prepared by drying, grinding and calcining at different temperatures. The grain size and phasestructure of pure and Fe-doped TiO2 after calcined at different temperatures, were studied by X-raydiffraction (XRD) and Beckman Coulter Sorption Analysis. The results showed that, the Fe3+-TiO2had better photocatalytic activity in degradation rate of methyl orange under sunlight. The degradationrate was up to 93% as the system was placed under sunlight for 5 h. The optimum calcinationtemperature for the best catalytic activity was determined to be 500°C, and the mechanism wasdiscussed
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.26-28.649.pdf
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