2017 Prosiding SNK Herbi SYNTHESES OF ACTIVATED CARBON FROM EMPTY BUNCHES OF KEPOK BANANA (Musa paradisiaca L.) WITH ULTRASONIC WAVES
Abstract
Syntheses of activated carbon from empty bunches of kepok banana (MusaParadisiaca L) (TKP) with
ultrasonic waves have been done. The of activated carbon were made via three step, namely carbonization at
350 °C, silica extraction with NaOH, activation with H3PO4 and ultrasonic waves exposure (exposure time
30, 60, and 90 minutes). The best quality activated carbons (according to SNI 06-3730-95) were obtained
from the process with ultrasonic wave exposure for 90 minute for activated carbon TKP. Respecting the best
quality activated carbon TKP has 4.22 % water content, 3.67 % ash content, 17.52 % volatile matter, 74.59
% carbon content and 840.14 mg/g absorption capacity of lodium. The of activated carbon was analyzer
characterized by Scanning Electron Microscope (SEM) showed that the pore of activated carbon was more
perfectly formed and regular. Analyzer of surface area with Braunanear Elmmelt and Teller (BET) method
showed surface area without exposure at TKP that is 35 m2/g with exposure of TKP that is 94 m2/g.
Exposure ultrasonic waves increased surface area and facilitated the formation of more pores with ordered
form than the non- exposure one.