SY N THESIS AND CHARACTERIZATION OF TiO 2 NANOCRYSTALS BY SOL - GEL METHOD AND STUDY THE EFFECT OF CALCINATION TEMPERATURE ON ITS PHOTOCATALY TIC ACTIVITJournal: International Journal of Engineering Sciences & Research Technology (IJESRT) (Vol.5, No. 2)
Publication Date: 2016-02-29
Authors : Vipul Shinde a; S. B. Bajaj;
Page : 176-181
Keywords : TiO 2; photocatalytic; degradation; sol - gel; calcination .;
TiO 2 nano part i cles w ere prepared by a simple s ol - gel method at different calcinations temperature . The prepared samples were characterized by X - ray diffraction and UV visible spectroscopy tech niques . H ydroxyl radicals (?OH) formation on the TiO 2 surface underUV light was detected by UV visible absorption spectroscopic technique. The photocatalytic activity was evaluated by photocatalytic de grada tion of Methelene Blue ( M B) aqueous solution under UV light exposour . The results revealed that the TiO 2 could be crystallized via s ol - gel method. The absorption of light, the development rate of hydroxyl radicals, and photocatalytic de grada tion of M B aqueous solution were significantly improved for mixed phase instead of simple anatase or rutile phase .
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