Insights into photocatalytic mechanism for the rational design of p-n heterojunction by decorating mesoporous SnS2 over ZnFe2O4 nanocomposite for accelerated visible light photocatalysis
enhanced visible light induced photocatalytic performance. The narrow bandgap of 2.21 eV facilitated the photocatalyst
be to active under visible-light irradiation. The rate of photodegradation of methylene blue (MB) dye
by optimized-NCs ratio was observed to be remarkable with multifold enhancement than pristine ZnFe2O4 and
SnS2. The interfacial contact enforces an internal electric field dependent directional charge migration which
hinders charge recombination that was verified by reduced photoluminescence intensity in NCs. Degradation
process admits pseudo-first order kinetics. The scavengers assay predicts the major role of hydroxyl (.OH) and superoxide
(.O2−) radicals in the degradation of MB dye. The structural stability and reusability of NCs were validated
by six consecutive cycles experiment. This work provides guidance for rational design of heterojunction
with superior activity and ZnFe2O4/SnS2 NCs expressed a greater potential to be a photocatalyst to eliminate
toxic pollutants from the aquatic resources.
Wheat is an important staple crop not only in Pakistan but all over the globe. Although the area
dedicated to wheat cultivation expands annually, the quantity of wheat harvested is…