Effect of Calcination Temperature on Surface Morphology and Photocatalytic Activity in TiO2 Thin Film Prepared by Spin Coating Technique

Abstract

TiO2 thin films were deposited on glass substrate using Sol-Gel derived precursor by Spin Coating technique at different calcination temperatures. Structural identity of the prepared films was confirmed by powder X-ray diffraction measurements. Morphology of the films was monitored using Atomic force microscopy and it was observed that calcination temperature of 400 °C favored TiO2 nanofibers. Photocatalytic activity of the films was checked by observing the degradation of herbicide Atrazine in UV region and the percentage of degradation was analyzed by HPLC method.

Calcination temperature-dependent surface structure and physicochemical properties of magnesium oxide

“…Fig. 9a presents the benzaldehyde conversion efficiency by using the calcined MgO at different temperatures as catalysts for 12 h. It is apparent that the conversion efficiency of benzaldehyde decreased over the calcination temperature, in good agreement with many previous studies [59][60][61][62][63][64][65][66][67] (Table S1 in the ESI †). Specially, although both the calcined samples at 400 C and 500 C demonstrated a similar catalytic performance for benzaldehyde (ca.…”