Dye adsorption behavior of Luffa cylindrica fibers.
Using natural Luffa cylindrica fibers as adsorbent removal of methylene blue dye from aqueous solutions at different temperatures and dye concentrations was investigated in this study. Thermodynamics and kinetics of adsorption were also investigated. The adsorption isotherms could be well defined with Langmuir model instead of Freundlich model. The thermodynamic parameters of methylene blue (MB) adsorption indicated that the adsorption is exothermic and spontaneous. The average MB adsorption capacity was found out as 49 mg/g and average BET surface area of fibers was calculated as 123 m(2)/g.
Demir
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Izmir Institute of Technology, Faculty of Engineering, Department of Chemical Engineering, Gülbahce Campus, Urla Izmir, Turkey. hasandemir@iyte.edu.tr
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D000327:Adsorption; D004396:Coloring Agents / Q000737:chemistry*; D007700:Kinetics; D029776:Luffa; D008751:Methylene Blue / Q000737:chemistry*; D013499:Surface Properties; D013696:Temperature; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D018508:Water Purification / Q000379:methods*
D004396:Coloring Agents; D014874:Water Pollutants, Chemical; D008751:Methylene Blue