Effect of microwave annealing on Tin Oxide nanomaterials

Abstract

We herein reported SnO2 (Tin Oxide) nanoparticles (NPs) synthesis using microwave assisted method. Stannous Chloride is used as a source of Sn, pH level 8 was maintained throughout the reaction for one hour using liquid ammonia. Domestic microwave oven with frequency of 2.54 GHz was used to treat the precipitate. Microwave treatment with different power modes (High power, low power, and direct heating mode) was given to collected dried synthesized samples for 30 min duration. Synthesized nanoparticles were investigated using UV–Vis, XRD, and FTIR spectroscopy. Crystallite size obtained using Scherrer formula. Tetragonal Rutile crystal structure has been obtained in XRD investigation. Prominent existence of (110) and (101) reflection has been revealed in X ray diffractogram. Microstrain and dislocation density shows dependence on microwave power. Optical features are investigated using UV–Vis spectroscopy. Band gap shows variation upon increase in microwave power. Stretching band modes were investigated using FTIR spectroscopy. There are multiple advantages of microwave assisted method. Microwave assisted method is fast, cost effective as well as scalable method. Domestic Microwave was deployed for the purpose of nanoparticle synthesis. Various power modes available were used innovatively for reported synthesis.