Adsorption behavior of carbon dioxide on activated carbons obtained from bagasse had been
studied by using simple equipment in general chemistry laboratory room. Carbon dioxide was generated
from reaction between the solutions of sodium carbonate and nitric acid giving pressure in the range 13 ± 6 –
397 ± 15 mbar at 30 °C. Activated carbons from bagasse prepared by activation with zinc chloride using
weight ratios of zinc chloride to activated carbon 2:1 and 3:1 at 600 °C and 800 °C, respectively. The
adsorption behavior of carbon dioxide on these activated carbons was discribed as stepwise isotherm. The
first layer was interpreted by Langmuir adsorption isotherm as monolayer coverage. The optimum condition
for the production of activated carbon from bagasse was the ratio of zinc chloride to activated carbon 3:1 at
800 °C. This activated carbon gave the highest maximum amount of monolayer adsorption of about 5.774
mmol g-1.