Sulfur nanoparticles (S NPs), Polyaniline (PANI), S NPs- PANI nanocomposite were synthesized by a simple, cost effective, minimal equipment facilities and more environment-friendly methods. Sulfur nanoparticles (SNPs) were synthesized in different acidic (oxalic acid and hydrochloric acid) media in presence of surfactant (CTAB) by acid catalyzed precipitation of sodium thiosulfate. The synthesized products were analyzed by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). XRD pattern reveals that the particles were in orthorhombic crystal form and the particle size was 65 nm in oxalic acid medium. The polymerization of aniline was held in situ condition and with exposure of S NPs on to the PANI a new nanocomposite was obtained. The XRD pattern and the EDS spectrum give evidence of the formation of S NPs-PANI nanocomposite by showing characteristic peaks of S NPs and PANI both. In addition, these synthesized products were executed for antibacterial test of some diarrhoeal and non-diarrhoeal pathogens. The obtained results showed that S NPs- PANI nanocomposite has enhanced antibacterial activity than SNPs, PANI and also the extensively used antibiotic ciprofloxacin and cotrimoxazole due to synergistic effect of S NPs and PANI.
