Biogenic synthesis of SnS2/chitosan nanocomposite and appraisal of its photocatalytic activity

The present study highlights the green synthesis of SnS₂ quantum dots over a chitosan surface (SnS₂/Ch) using Azadirachta Indica leaf extract via precipitation technique. The photocatalytic performance of the prepared photocatalyst was investigated for the degradation of crystal violet dye through a photocatalytic-assisted advanced oxidation process (AOP). The average crystallite and particle sizes of the SnS₂/Ch photocatalyst were 8.8 nm and 3.3 nm, respectively. The effect of various reaction parameters was optimized to achieve maximum degradation efficiency. Maximum degradation of 98.60 ± 1.34% could be achieved under optimum conditions within 70 min of visible light irradiation.