Djefry, Tani and Bambang, Setiaji and Wega, Trisunaryanti and Akhmad, Syoufian (2014) EFFECT ACTIVATION OF CHEMICAL AND PHYSICAL TO STRUCTURE AND ACTIVATED CARBON QUALITY FROM CHARCOAL OBTAINED BY PYROLYSIS OF COCONUT SHELL. Proceeding of International Conference On Research, Implementation And Education Of Mathematics And Sciences 2014. (Submitted)
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Abstract
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 .
| Item Type: | Article |
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| Uncontrolled Keywords: | coconut shell, activated carbon , ZnCl2 , SPSS , FTIR , SEM , BET |
| Subjects: | Prosiding > ICRIEMS 2014 > CHEMISTRY & CHEMISTRY EDUCATION |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Jurusan Pendidikan Kimia > Kimia |
| Depositing User: | Eprints |
| Date Deposited: | 06 Nov 2014 04:27 |
| Last Modified: | 06 Nov 2014 04:27 |
| URI: | http://eprints.uny.ac.id/id/eprint/11345 |
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