Effects of Synthesis Method on Al2O3 Nanoparticle Generation
Nowadays the importance of nano size materials attracted many researchers because of their various characteristics properties in comparison with their bulk state . In particular, alumina nanoparticles (Al2O3) played important roles in several applications such as biomaterials , sensors , optics etc., . Different synthesis methods have been enhanced including sol-gel, milling, spray drying, plasma synthesis, hydrothermal processing, chemical precipitation and solution combustion to synthesize alumina nanoparticles . For a long time, chemical precipitation method attracted more attention due to its low cost, less pollution and simple applicability . The solution combustion, as a novel synthesis method than the chemical precipitation, have been interested by more researchers because of its features as being simple, inexpensive and time-saving production process alike chemical precipitation method [4,7].
In this study, Al2O3 nanoparticles were synthesized by chemical precipitation method. Then, previously synthesized particles by solution combustion method and the particles obtained from chemical precipitation were analogized according to their morphology and chemical structures. X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermogravimetric/differential thermal analysis (TG/DTA) were used to the characterization studies of particles and evaluated results were compared by the effect of the synthesis methods on alumina formation and particle size.
Keywords - Alumina, Chemical precipitation, Nanoparticles, Solution combustion.