Chitosan Nanoparticle - Montmorillonite - Titanium dioxide Nanocomposites: Synthesis, Characterization, and Antimicrobial Activity

In recent years, a strong interest has emerged in hybrid composites and their potential uses, especially in Chitosan Nanoparticle – MontMorillonite - Titanium dioxide - (CSNP – MMT - TiO۲) composites, which have interesting technological properties and applications. Using the Precipitation Method, Chitosan Nanoparticles with TiO۲ Nanocomposite (CSNP – MMT - TiO۲ Nanocomposite) was created. Analysis using Scanning Electron Microscopy (SEM) revealed that the modified TiO۲ Nanocomposite was successfully dispersed into the Chitosan matrix and that the roughness of the Chitosan Nanoparticle - MMT- TiO۲ Nanocomposites were significantly reduced. Moreover, X-Ray Diffraction (XRD) and Fourier Transform InfraRed (FT-IR) spectroscopy analyses indicated that the Chitosan interacted with TiO۲ Nanocomposite and possessed good compatibility, while a ThermoGravimetric Analysis (TGA) of the thermal properties showed that the Chitosan-MMT-TiO۲ Nanocomposites with ۰.۰۵% TiO۲ Nanocomposite concentration had the best thermal stability. The Chitosan- MMT-TiO۲ Nanocomposite exhibited an inhibitory effect on the growth of gram-positive and gram-negative microorganisms.

کلیدواژه ها:

Chitosan ، precipitation method ، Chitosan Nanoparticle–Montmorillonite - titanium dioxide -Nanocomposites ، thermal stability ، Antibacterial activity