Carbon letters
- 제7권4호
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- Pages.249-258
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- 2006
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- 1976-4251(pISSN)
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- 2233-4998(eISSN)
Removal of Cu (II) and Cd (II) Ions Onto Water Hyacinth Based Carbonaceous Materials
- Amina, A. Attia (Laboratory of Surface Chemistry and Catalysis, National Research Center) ;
- Shouman, Mona.A. (Laboratory of Surface Chemistry and Catalysis, National Research Center) ;
- Khedr, S.A. (Laboratory of Surface Chemistry and Catalysis, National Research Center) ;
- El-Nabarawy, Th. (Laboratory of Surface Chemistry and Catalysis, National Research Center)
- 투고 : 2006.09.20
- 심사 : 2006.12.18
- 발행 : 2006.12.30
초록
Treatment of water hyacinth with sulphuric acid produces carbonaceous materials that have been used to remove Cu(II) and Cd (II) ions from aqueous solutions. Untreated water hyacinth was also used for the subject of comparison. The textural properties of the carbonaceous materials were determined from nitrogen adsorption at 77 K. The optimum pH for the sorption of Cu (II) and Cd (II) ions on the investigated sorbents was determined. Dynamic adsorption measurements have been taken at 298 K whereas equilibrium measurements were carried out at 298, 313 and 323 K. The adsorption of nitrogen at 77 K on the untreated sample was too low and the surface areas of the treated samples 2, 3 and 4 were found between