Penggunaan Katalis Sio2 Dari Sabut Kelapa (Cocos Nucifera L.) Terimpregnasi …

SUMMARY Coconut husk (Cocos nucifera L.) is one of the most abundant parts produced by coconut plants and is an underutilized waste material. Coconut husk ash contains silica that has the potential to be used as a heterogeneous acid catalyst in biodiesel synthesis. The use of non-impregnated silica as a catalyst can pose problems in terms of activity, selectivity, and efficiency of chemical re…