Effective photocatalysis and toxicity investigations in zebra fish embryos using highly selective hydrogen sensors and supercapacitor electrode materials for SnO2–PANI nanocomposites
Amutha Eswaran, Rajaduraipandian Subramaniam, Madhumitha Thirumalainambi, Gurusamy Annadurai, Vijayalakshmi Shankar
TL;DR
This study creates SnO2–PANI nanocomposites with potential uses in gas sensing, energy storage, and biomedicine, showing good performance and low toxicity.
Contribution
The synthesis and characterization of SnO2–PANI nanocomposites with multifunctional applications and low toxicity is the novel contribution.
Findings
The nanocomposites showed 94% hydrogen sensing capacity and 50 days of stability.
They removed 92% of rhodamine dye in 180 minutes during photocatalysis.
The nanoparticles exhibited antibacterial activity against both Gram-positive and Gram-negative bacteria.
Abstract
The current study presents the synthesis of binary hybrid tin oxide–polyaniline (SnO2–PANI) nanocomposites, which have potential applications in gas sensing, energy storage, photocatalysis, and biomedicine. Ternary hybrid formation is confirmed by a number of characterization studies, including X-ray diffraction (XRD), thermogravimetric analysis (TGA), particle size analysis (PSA), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy with energy dispersive X-ray (SEM–EDAX) analysis, and atomic force microscopy (AFM). The nanoparticles showed good gas sensing capability, with a sensitivity for hydrogen (H2) at 50 ppm. The electrode material exhibited a sensing capacity of 94% and a stability period of 50 days. The electrochemical performance of the binary hybrid is revealed by a three-electrode setup using a potassium hydroxide (KOH) (3 M) electrolyte. The…
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Taxonomy
TopicsGas Sensing Nanomaterials and Sensors · Polymer Nanocomposite Synthesis and Irradiation · Chemical and Physical Properties of Materials