Facial synthesis of highly active polymer vanadium molybdate nanocomposite: Improved thermoelectric and antimicrobial studies

In this study, a novel poly(o-toluidine)V(III)molybdate (POT-V(III)MoO4) nanocomposite was prepared using a simple sol-gel strategy. The in situ polymerization of ortho-toluidine in the V(III)MoO4 framework was achieved by oxidation with ammonium persulfate. The material obtained was characterized by various techniques comprising scanning electron microscopy, Fourier transform-infrared spectroscopy, thermogravimetric analysis, Xray diffraction, and X-ray photoelectron spectroscopy. Dielectric and AC conductivity studies were conducted to determine the physicochemical state of POT-V(III)MoO4. The dielectric parameters epsilon', epsilon '', tan delta, and sigma AC change with the capacity. The relationships between the dielectric properties epsilon', epsilon '', tan delta, and AC conductivity (sigma AC) with the recurrence showed that the scattering was due to the Maxwell-Wagner type of interfacial polarization. Antibacterial tests of POT-V(III)MoO4 were performed using Gram-positive (Enterococcus faecalis) and Gram-negative (Serratia marcescens) bacteria, and the results indicated its excellent antimicrobial activity against both bacterial strains. Assessments of the antimicrobial activities in a liquid medium and on the solid surface of growth medium showed that a bacterial inhibition zone developed, and POT-V(III)MoO4 was more effective compared with the standard drug amoxicillin.