Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1491757 | Materials Research Bulletin | 2006 | 10 Pages |
Abstract
Photocatalytic performance of a hydrothermally synthesized pure anatase TiO2 with 8 nm average crystallite size for decomposition of Reactive Red 141 was examined by investigating the effects of UV-light irradiation time, irradiation power, amount of TiO2 and initial dye concentration. Change in the UV absorbance of the dye during irradiation was monitored. One wt.% TiO2 in 30 mg/l Reactive Red 141 aqueous solution was found adequate for complete decolorization in 70 min at 770 W/m2 irradiation power. It was realized that, compared to Degussa P-25, the synthesized nano-TiO2 can be repeatedly used as a new catalyst. The results also proved that Reactive Red 141 is decomposed catalytically due to the pseudo first-order reaction kinetics.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Funda Sayılkan, Sema Erdemoğlu, Meltem Asiltürk, Murat Akarsu, Şadiye Şener, Hikmet Sayılkan, Murat Erdemoğlu, Ertuğrul Arpaç,