Khalil beyki, Behin Pars Nanoparticles Company, Yazd, Iran.
Na2O-ZnO-SiO2 nano system were synthesized using zinc sulfate heptahydrate, sodium metasilicate and Sodium carboxymethyl cellulose. The Thermo Gravimetric and Differential Thermo gravimetric (TGA/DTA) analysis were done to study the thermal behavior of the as synthesized sample NaOHZn(OH)2-Si(OH)4. The peak at 443.6 °C in DTA may be related to the decomposition of NaOH-Zn(OH)2-Si(OH)4 into Na2O-ZnO-SiO2. The structural, optical properties, morphology and composition of Na2O-ZnO-SiO2 nano particles (NPs) were studied by various techniques such as XRD, FTIR, TEM, FESEM and EDAX. The antimicrobial activity were carried out against Gram positive and Gram negative bacteria and Na2O-ZnO-SiO2NPs showed inhibitory activity in both strains of bacteria with excellent selectivity against Gram-positive bacteria. This is an eco-friendly, time conservative and cost effective way of mesoporous nanoparticle production.
