Maredan clay is a natural material with the potential to be used as a raw material for zeolite synthesis due to its relatively high SiO2 and Al2O3 composition. This study aimed to synthesize zeolite Y from Maredan clay using the hydrothermal method with variations in the Si/Al ratio, as well as to modify the zeolite by impregnated Ni and Co metals. Characterization was performed using XRF, XRD,…