Preparation of bimetal incorporated TiO 2 photocatalytic nano-powders by flame method and their photocatalytic reactivity for the degradation of diluted 2-propanol

• Published in: Current applied physics Vol. 7; no. 2; pp. 118 - 123
• Main Authors: Park, Hoon, Neppolian, Bernaurdshaw, Jie, Hyun Seock, Ahn, Jae-Pyoung, Park, Jong-Ku, Anpo, Masakazu, Lee, Dok-Yol
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 2007
• Subjects: Bimetal of iron and zinc; Catalyst in crystallization; Flame method; Photocatalytic degradation of 2-propanol; TiO 2 photocatalysts; Photocatalytic degradation of 2-propanol; Catalyst in crystallization; 81.16.−c; Flame method; TiO 2 photocatalysts; Bimetal of iron and zinc
• ISSN: 1567-1739; 1878-1675
• DOI: 10.1016/j.cap.2006.02.005

Bimetal incorporated TiO 2 photocatalysts (FeZn–TiO 2) prepared by a flame method showed high photocatalytic activity for the degradation of 2-propanol dissolved in water as compared with mono-metal incorporated or unincorporated TiO 2. By using this flame method, parameters such as uniform particle size, crystallinity as well as the anatase and rutile phase ratio (anatase/rutile) could be controlled without calcination of the catalysts at high temperatures, the parameters being important to achieve a high photocatalytic activity. The presence of a small amount of bimetals such as Fe and Zn plays a vital role as a catalyst in the formation of highly crystalline, small and uniform size particles with defined anatase/rutile phase ratio of around 60/40, this being similar to that of P-25 which is well known as a highly active photocatalyst.