2018 : The route of liquid precursor to ZnO nanoparticles in premixed combustion spray pyrolysis

Prof.Dr.Ir. Sugeng Winardi M.Eng
Dr. Tantular Nurtono ST., M.Eng.
Dr.Eng. Siti Machmudah , ST.,M.Eng.
Dr.Eng Widiyastuti ST., MT.


Abstract

Zinc oxide nanoparticles had been successfully synthesized by premixed combustion spray pyrolysis. Zinc acetate was dissolved in distilled water was selected as a liquid precursor. Zinc nitrate was also used for comparison the effect of precursor type on the generated particles morphology and the crystallinity. The premixed combustion reaction used liquefied petroleum gas (LPG) mainly consisting of butane and propane as a fuel and compressed air used as an oxidizer. The liquid precursor was atomized using a custom two fluid nozzle to generate droplets. Then, the droplets were sprayed by the flow of air as a carrier gas into the premixed combustion reactor. The zinc precursor was decomposed to zinc oxide due to the high temperature as a result of combustion reaction inside the reactor resulting in nanoparticles formation. The particle size decreased with the increase of the fuel flow rate. In addition, it can be …