Removal of mercury (II) from aqueous solution by activated carbon obtained from furfural

Autor: Yardim, M.F.1, Budinova, T.2 goriva@orgchm.bas.bg, Ekinci, E.1, Petrov, N.2, Razvigorova, M.2, Minkova, V.2
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Zdroj: Chemosphere. Aug2003, Vol. 52 Issue 5, p835. 7p.
Abstrakt: The adsorption of Hg(II) from aqueous solution at 293 K by activated carbon obtained from furfural is studied. The carbon is prepared by polymerization of furfural following carbonization and activation of the obtained polymer material with water vapor at 800 °C. Adsorption studies of Hg(II) are carried out varying some conditions: treatment time, metal ion concentration, adsorbent amount and pH. It is determined that Hg(II) adsorption follows both Langmuir and Freundlich isotherms. The adsorption capacity of the carbon is 174 mg/g. It is determined that Hg(II) uptake increases with increasing pH. Desorption studies are performed with hot water. The percent recovery of Hg(II) is 6%. [Copyright &y& Elsevier]
Databáze: GreenFILE
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