HIGHLY SELECTIVE HYDROGEN SENSOR AND SUPERCAPACITOR ELECTRODE MATERIALS FOR SnO2-PANI NANOCOMPOSITES FOR EFFICIENT PHOTOCATALYST AND TOXICITY STUDIES IN ZEBRA FISH EMBRYOS

Abstract

Our current study presents the synthesis of binary hybrid Tin Oxide-Poly Aniline (SnO2-PANI) nanocomposites, which have potential applications in gas sensing, energy storage, photocatalysis, and biomedicine. The ternary hybrid formation is confirmed by a number of characterization studies, including X-ray diffraction (XRD), Thermogravimetric Analysis (TGA), Particle Size Analyzer (PSA), Fourier transform infrared microscopy (FTIR), Scanning Electron Microscopy with Elemental Analysis (SEM-EDAX), Atomic Force Microscopy (AFM). The gas sensing capability of the nanoparticles showed good sensitivity for Hydrogen (H2) at 50 ppm. The electrode material has a 94% sensing capacity and a 50-day stability period.The electrochemical performance of the binary hybrid is revealed by a three-electrode setup using a Potassium hydroxide (KOH) (3 M) electrolyte. The particles have a large surface area and a high current density, according to the electrochemical study. The bimetallic nanoparticle was used to degrade the Rhodamine dye in a photocatalytic chamber. 180 minutes later, the nanoparticles had removed 92% of the dye. The model animal showed only mild toxicity to the nanoparticles in the toxicity test, which was conducted to ascertain whether the photocatalyst was hazardous. The particles showed good activity against both Gram positive and Gram negative bacteria in the antibacterial test when compared to the control.