%0 Journal Article
%A Djefry, Tani
%A Bambang, Setiaji
%A Wega, Trisunaryanti
%A Akhmad, Syoufian
%D 2014
%F UNY:11345
%I Yogyakarta State University
%J Proceeding of International Conference On Research, Implementation And Education Of Mathematics And Sciences 2014
%K coconut shell, activated carbon , ZnCl2 , SPSS , FTIR , SEM , BET
%T EFFECT ACTIVATION OF CHEMICAL AND PHYSICAL TO STRUCTURE  AND ACTIVATED CARBON QUALITY FROM CHARCOAL OBTAINED BY  PYROLYSIS OF COCONUT SHELL
%U http://eprints.uny.ac.id/11345/
%X Activation of coconut shell charcoal has been done by a combination of chemical  and physical activation to determine the effect of chemical activators and activation  temperature to changes in the chemical structure and the quality of activated carbon .  The study was conducted on charcoal coconut shell of pyrolysis results with variation of  concentration and immersion time ZnCl2 as an activator , respectively 0.5 to 2 M for 12  to 24 hours . Then proceed with the activation of physics in reactor the activation of the  temperature variation of 500 to 800 oC with CO2 gas flow rate 20 mL / min . Evaluation  of the chemical structure and the quality of activated carbon performed FTIR , SEM ,  specific surface area , total pore volume , and average pore with Brunauer - Emmett -  Teller ( BET ) . The results showed the results of the analysis of SPSS through  Cofficients test the concentration variables most affect to moisture content , ash content ,  and iodine absorption from temperature variable and time of activation . The best quality  activated carbon produced at a concentration of ZnCl2 of 1.5 M, 24 hours soaking time of  24 hours , temperature 800 oC and the activation time of 120 minutes . The results as  moisture content of 8.47 % , volatile matter content of 18.55 % , ash content 1.44 % ,  bonded carbon content of 80.01 % and iodine absorption of 769.74 mg / g . The results  of FTIR analysis showed the surface of activated carbon containing CO and CH bonds ,  and SEM analysis showed the number and diameter of pores increased with the higher  calcination temperature . Surface area ( BET ) of 359.286 m2 / g , pore volume of 1.984 x  10-1 cm3 / g and pore mean of 11.46 Ǻ .