Variasi Waktu Perendaman Dalam Pembuatan Karbon Aktif Dari Cangkang Buah Keta…

Activated carbon were prepared from shell of Terminalia cattapa. The shell of Terminalia cattapa were carbonized by conventional carbonization for 3 hours. The ratio of mass percentase of carbon granular : KOH is 2 : 1. The mixtures of carbon granular and KOH were soaked in 200 mL boilong water for 12 hours, 24 hours and 36 hours. Respectivaly and subseguent by irradiated with output power of 6…