Penentuan Daya Jerap Karbon Aktif Dari Tempurung Kelapa Terhadap Ion Cu(II)

Abstract

Activated carbon which has a high adsorption capacity for the adsorbate. Activated carbon
can be produced from materials containing carbon or charcoal was treated in a certain way
to gain more surface area. The research goal was to process coconut shell into a activated
carbon and determine the adsorption power of the ion Cu (II). The dried coconut shell was
carbonated in a sealed drum to produced charcoal / carbon. Charcoal was crushed into a
particle size of 100 mesh. Charcoals with a size of 100 mesh were activated physically and
chemically. The activation process of carbon physically carried out at a temperature of 300,
500 and 700 ºC. While chemically, activated carbon was done by used Na2CO3 as an
activator. Carbon/charcoal was soaked in a solution of Na2CO3 for 24 hours. Furthermore, it
was separated from the solution of Na2CO3 and dried at a temperature of 105 ºC. Activated
carbon obtained both physically and chemically characterized to determine such as ash
content, moisture content and adsorption power of the iodine solution and Cu(II) in solution. The results showed that the carbon which activation under a temperature of 700 ºC was the best activated carbon has a water content of 4.13%, ash content of 5.25%, iodine number 1262.95% and the adsorption power of the ion Cu(II) 99.96%
Keywords : Activated Carbon, Adsorption, Chemical Activation, Coconut Shell and PhysicsActivation