Abstract
In the present study, different concentrations (1 and 3%) of Bi were incorporated into a fixed amount of molybdenum disulfide (MoS
2
) and SnO
2
quantum dots (QDs) by co-precipitation technique. This research aimed to increase the efficacy of dye degradation and bactericidal behavior of SnO
2
. The high recombination rate of SnO
2
can be decreased upon doping with two-dimensional materials (MoS
2
nanosheets) and Bi metal. These binary dopants-based SnO
2
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
2
and Bi
3+
is responsible for producing a variety of different oxygen vacancies within SnO
2
. The prepared QDs were described
via
morphology, optical characteristics, elemental composition, functional group, phase formation, crystallinity, and
d
-spacing. In contrast, antimicrobial activity was checked at high and low dosages against
Escherichia coli
(
E. coli
) and the inhibition zone was calculated utilizing a Vernier caliper. Furthermore, prepared samples have expressed substantial antimicrobial effects against
E. coli
. To further explore the interactions between the MB and Bi/MoS
2
–SnO
2
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
2
–SnO
2
composite.
In the present study, different concentrations (1 and 3%) of Bi were incorporated into a fixed amount of molybdenum disulfide and SnO
2
quantum dots by co-precipitation technique. This research aimed to increase the efficacy of dye degradation and bactericidal behavior of SnO
2
.