The Effect of Different Precursor Concentration on The Synthesis of CaO Nanoparticles with Coprecipitation Methods for Palm Oil Transesterification Catalysis

Calcium oxide nanoparticles was prepared by coprecipitation method using calcium acetate as precursor and calcined at 800 °C for 6 hours. This work studied the effect of different concentrations on size obtained its applicated palm oil transesterification catalysis. Characteristics samples were measured XRD SEM et al techniques. The results showed that diffraction pattern CaO has same standard from Joint Committee Powder Diffraction Standard (JCPDS). analysis shows morphology particles agglomerate almost all variations in concentration. particle increases with increasing smallest 55.758 nm produced solid lowest concentration 0.05 M. catalytic activity activated nanoparticle compound tested production methyl esters. conversion triglycerides into esters 90.34%.Keywords: nanoparticles, oxide, coprecipitation, precursor, catalys, metyl ester