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9.
Removal of Phenol From Aqueous Solution by Activated Carbon Prepared
From Some Agricultural Materials
Adegoke
H. I+. and Adekola F. A
Department of Chemistry, University of Ilorin, P.M.B. 1515, Ilorin,
Nigeria
E- mail Address:
ihalimat@yahoo.com
Abstract.
Activated carbon were prepared from coconut shell; coconut
coirpith, rice husk, shear butter wood and shear butter bark
using IM Ferric chloride, IM Trioxonitrate (v) acid, IM
Orthophosphoric acid and IM Potassium carbonate as the chemical
activating reagents. The activated carbons were characterized
using micropore volume, bulk density, moisture content and pH.
The activated carbons prepared were used for the removal of
phenol from aqueous solution.
The Hydrochloric acid purified -carbon produced from shear
butter bark was found to be better adsorbent for phenol than
those prepared from coconut shell. The adsorption data fit well
with Langmuir adsorption isotherm with the adsorption capacity
in the range of 0.0052 and 0.1084 mg/g at 28 + 2oC,
pH 8.0 and for particle size 0.08 – 0.5mm.
KEY WORDS:
Activated carbons, phenol, adsorption capacity, Langmuir
adsorption isotherm
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