Abstract:
Activated carbons were prepared from sawdust, of different woods, and nutshells. A standard procedure was followed using phosphoric acid as an activating agent. Carbonisation and activation was carried out in inert atmosphere. Acetic acid and oxalic acid adsorption on these activated carbon samples was compared with a commercially available activated carbon. Both the Freundlich and Langmuir adsorption isotherms were applied to the data. Data from acetic acid adsorption fitted well with the Freundlich adsorption isotherm. On the other hand both the Langmuir and Freundlich models were applicable to the data from oxalic acid adsorption. The produced activated carbon samples were found to have lower affinity for the adsorption of acidic substances than the commercially activated carbon.
Page(s):
25-34
DOI:
DOI not available
Published:
Journal: Physical chemistry, Volume: 16, Issue: 0, Year: 2007