Open AccessSynthesis, Characterization, Semiconductor-Assisted Photocatalysis and Antibacterial Activity of Electrochemically Synthesized SnS and NiS/SnS Nano Photocatalysts
Author(s) -
Hosaholalu Balakrishna Uma,
M. S. Vijaya Kumar,
S. Ananda
Publication year - 2021
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2022.23485
Subject(s) - photocatalysis , indigo carmine , chemistry , scanning electron microscope , nuclear chemistry , nanoparticle , antibacterial activity , band gap , visible spectrum , chemical engineering , nanotechnology , materials science , catalysis , organic chemistry , optoelectronics , genetics , biology , bacteria , engineering , composite material
In present study, SnS and NiS/SnS nano-photocatalysts have been synthesized by simple electrochemicalmethod and their photocatalytic activity and bacterial inactivation were investigated. The size,morphology, chemical composition and optical properties were investigated by X-ray diffraction (XRD),scanning electron microscope (SEM), energy dispersive X-ray analysis (EDAX) and optical absorptionspectroscopy. The XRD analysis confirmed the crystalline SnS phase. The band gap estimated fromTauc’s plot was 2.9 eV for SnS and 2.7 eV for NiS/SnS nanoparticles shows that they are photoactiveunder UV light radiation. The photocatalytic activity of nanoparticles was studied by degradation oftextile dye Indigo carmine under ultraviolet radiation and the photocatalytic decolourization of the dyefollows the first order kinetics. The antibacterial susceptibility of SnS and NiS/SnS nanoparticles wasevaluated by disc diffusion Kirby-Bauer method using Staphylococcus aureus and Escherichia coli.