The improved Photocatalytic Performance of Strontium Titanate (STO) Powder Induced by Lanthanum Dopants
Year: 2024
Type: article
Abstract: In this research, Lanthanum (La)-doped Strontium Titanate (STO) with the formula of Sr1-xLaxTiO3 (LSTO; x=0, 0.03, 0.05, and 0.07) powders have been successfully fabricated by co-precipitation route. The impacts of La3+ on the structural, microstructure, band-gap, and photocatalytic activity for the degradation of organic pollutants, in this case, methylene blue, under UV exposure, were reported in detail. The formation of undoped and La-doped STO samples with cubic perovskite structures was confirmed by X-ray Diffraction (XRD) results. The presence of La doping affected the microstructure morphology by producing LSTO powders with a larger specific surface area. Besides, the UV absorption of the LSTO powders was enhanced due to the narrowed band gap caused by La3+ dopants. Accordingly, an improvement in photocatalytic activity applied for the photodegradation of methylene blue solution was exhibited by the LSTO samples.
Authors: Yofentina Iriani, Novia Puspita, Dianisa Sandi, Fahru Nurosyid, Risa Suryana, Didier Fasquelle
Institutions: Sebelas Maret University, Université du littoral côte d'opale
Language: English
Field: Energy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6991657947
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