Sintesis Katalis Cao-Sio2/Fe2o3 Dari Cangkang Kerang Darah Dan Fly Ash Cangka…

CaO catalyst impregnated with SiO2 (silica) is a heterogeneous catalyst that is widely used in transesterification reactions for biodiesel synthesis. However, the yield of biodiesel produced is not optimal, due to the small surface area and stability of the catalyst, requiring modification with other types of metal oxides such as Fe₂O₃. Fe₂O₃ has high porosity and stability thus can inc…