Experimental and theoretical study of catalytic dye degradation and bactericidal potential of multiple phase Bi and MoS doped SnO quantum dots.

In the present study, different concentrations (1 and 3%) of Bi were incorporated into a fixed amount of molybdenum disulfide (MoS) and SnO quantum dots (QDs) by co-precipitation technique. This research aimed to increase the efficacy of dye degradation and bactericidal behavior of SnO. The high recombination rate of SnO can be decreased upon doping with two-dimensional materials (MoS nanosheets) and Bi metal. These binary dopants-based SnO showed a significant role in methylene blue (MB) dye degradation in various pH media and antimicrobial potential as more active sites are provided by nanostructured MoS and Bi is responsible for producing a variety of different oxygen vacancies within SnO. The prepared QDs were described morphology, optical characteristics, elemental composition, functional group, phase formation, crystallinity, and -spacing. In contrast, antimicrobial activity was checked at high and low dosages against () and the inhibition zone was calculated utilizing a Vernier caliper. Furthermore, prepared samples have expressed substantial antimicrobial effects against . To further explore the interactions between the MB and Bi/MoS-SnO composite, we modeled and calculated the MB adsorption using density functional theory and the Heyd-Scuseria-Ernzerhof hybrid (HSE06) approach. There is a relatively strong interaction between the MB molecule and Bi/MoS-SnO composite.