Templated sol-gel Sr2TiO4 nanoparticle preparation as photocatalyst: Morphological-depended efficiency in organic dyes degradation
نویسندگان
1 Department of Chemistry, University of Alzahra, Vanak, Tehran, Iran
2 Department of Chemistry Education, Farhangian University, P.O. Box 14665-889, Tehran, Iran
doi
10.22036/j10.22036.2025.498333.1179چکیده
Semiconductor photocatalysts can effectively break down organic dye pollution. The degradation of Congo red and methylene blue by photocatalysis using a perovskite Sr2TiO4 nano-photocatalyst was investigated in this work. The nanostructure preparation method and template on photocatalytic efficiency were investigated. Results showed a correspondence of efficiency and procedure-based morphology. The catalyst was then examined using XRD, BET, FT-IR, SEM, and TGA/DTA. Under UV light irradiation, the Sr2TiO4 nanoparticle's photocatalytic activity was assessed. At room temperature, 5 ppm of Sr2TiO4 nano-photocatalyst dose, 50.0 mg/L initial dye concentration, and 60 minutes of irradiation time, degradation efficiencies of 94.0% for Congo red and 97.0% for methylene blue were attained. This photocatalyzed reaction exhibits a first-order behavior. For Congo red and methylene blue, the degradation rate constants were investigated. The investigation demonstrated that Sr2TiO4 nano-photocatalyst offers a high potential for methylene blue and Congo red photocatalytic degradation.
