Document Type

Article

Publication Date

Summer 7-1-2023

Abstract

The SnS2/SnO2 nanocomposite, employed as a photocatalyst for the photodegradation of fluorescein dye, demonstrates the significant role of mass ratio and catalyst dosage in photocatalytic degradation. The relatively small disparity between the conduction bands of SnS2 (ECB = -0.895 eV) and SnO2 (ECB = 0.15 eV) is conducive for the formation of a Z-scheme, which curbs the recombination process and elevates photocatalytic activity. The nanocatalyst was synthesized using the sol-gel method and subsequently characterized through XRD, SEM, TEM, EDX, mapping, DRS, and XPS. The peak intensity of the photoluminescence (PL) study, relating to the optical property of the catalyst, was observed at 829 nm. The efficacy of the prepared SnS2/SnO2 nanoparticles against photostable fluorescein dye (Flu) photodegradation was evaluated, showing a 77.67% reduction in fluorescein dye within 240 minutes at a pH level of 7. Additionally, the recyclability study affirmed the stability of the catalyst over four successive runs

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