Synthesis of Nanocomposites of V₂OO5©Selenium Nanoparticles and Multiwalled Carbon Nanotubes for Antimicrobial Activity.

Abstract

The authors report the preparation of the nanocomposite comprising of vanadium pentoxide (V₂O5) and selenium (Se) nanoparticles and functionalized multiwalled carbon nanotubes (MWCNTs) (V₂O5@Se NPs/MWCNTs). Since Se NPs possesses extraordinary physicochemical properties including larger surface area with higher adsorption capacity, V₂O5 NPs were adsorbed onto Se NPs surface through physisorption process (designated as V₂O5@Se NPs). The nanocomposite synthesized hydrothermally was evaluated for its antimicrobial activity. The morphology and microstructure of the nanocomposite were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis, respectively. Fourier transform infrared spectroscopy (FTIR) and UV-Visible spectroscopy (UV-Vis) were employed to analyze the spectral properties of nanocomposite. The microbicidal efficacy of nanocomposite was tested against Gram-negative (G-)ZGram-positive (G+) bacteria and fungus. This is the first report on the synthesis of V₂O5@Se NPs/MWCNTs nanocomposites by chemical method that showed microbicidal effect on micro-organisms. The thiol (-SH) units facilitates the enrichment of V₂O5@Se NPs onto MWCNTs surface. Ultimately, it reflects on the significant antimicrobial activity of V₂O5@Se NPs/MWCNTs.