Impregnasi ZnO Karbon Aktif dari Sabut Kelapa (Cocos nucifera L) Fotokatalis Untuk Degradasi Rhodamin B

— Research on increasing the degradation ability of AC-ZnO catalyst against Rhodamine B by impregnation on activated carbon from coconut fiber (Cocos nucifera L) has been carried out. Activated carbon is catalyzed by ZnO semiconductor catalyst by impregnation method. Impregnation was carried out by varying the addition of activated carbon (AC) 5%, 10%, 15%, 20% and 25% ZnO mass for 6 hours. The catalyst was calcined at 300 C for 105 minutes. For the results of the AC-ZnO adsorption test on Rhodamine B, the catalyst was tested on the degradation of Rhodamine B solution (10 ppm) with UV irradiation. obtained 89.76%. This shows that activated carbon from coconut fiber can support to increase the role of ZnO in the degradation of Rhodamine B. Characterization of the optimum degradation yield was carried out by FTIR. The characterization results showed that the ZnO catalyst was successfully formed.