Abstract:
Polyaniline-tin (IV) molybdophosphate (PANI /TMP) was prepared using sol–gel method by
mixing polyaniline (PANI) gel into the inorganic precipitates of Tin (IV) molybdophosphate
(TMP). The composite was characterized by various techniques such as X-ray diffraction, UVVisible,
Fourier transform, scanning electron microscope, photoluminescence. Photocatalytic
activities and antimicrobial efficiencies of the bare polymer Polyaniline, the inorganic
composite Tin (IV) molybdophosphate and the composite polyaniline- tin (IV) Molybdo
Phosphate were evaluated using methylene blue as a model organic pollutant and Gram
negative and Gram positive bacteria as test microbes respectively. Photocatalytic and
antibacterial activities of Polyaniline - tin (IV) molybdophosphate nanocomposite were found
to be the highest. The results obtained indicate the degradation efficiency of 72.96% in 180
min. exposure time using visible light irradiation. Mechanism of scavenger reaction also
assure the most important species in the degradation process be (
.O2 ) and (OH.
). Highest
photocatalytic degradation efficiency of the polyaniline Tin(IV) molybdophosphate composite
was obtained at initial concentration of 10 ppm MB, 100 mg/L of catalyst load and at pH=8.
Antibacterial efficiency of the polyaniline - tin (IV) molybdophosphate support over both
Gram negative and Gram positive bacteria were found to be relatively higher than polyaniline
and Sn (IV) molybdophosphate.
