This study investigated the potential of Pyrolyzed Ficus Benjamina (PF) on the removal of cationic dye, Crystal Violate (CV), by batch biosorption processes. The consequence of contact time and temperature are examined. Characteristics of PF were investigated using Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray spectroscopy (EDX), Brunauer– Emmett–Teller (BET), and Fourier Transform I...