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Biosorption of Cu^2^+, Cd^2^+, Pb^2^+, and Zn^2^+ using dried marine [An article from: Bioresource Technology]
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This digital document is a journal article from Bioresource Technology, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
The sorption of Cu^2^+, Cd^2^+, Pb^2^+, and Zn^2^+ by a dried green macroalga Caulerpa lentillifera was investigated. The removal efficiency increased with pH. The analysis with FT-IR indicated that possible functional groups involved in metal sorption by this alga were O-H bending, N-H bending, N-H stretching, C-N stretching, C-O, S?O stretching, and S-O stretching. The sorption of all metal ions rapidly reached equilibrium within 20min. The sorption kinetics of these metals were governed by external mass transfer and intraparticle diffusion processes. The sorption isotherm followed the Langmuir isotherm where the maximum sorption capacities was Pb^2^+>Cu^2^+>Cd^2^+>Zn^2^+.
Description:
The sorption of Cu^2^+, Cd^2^+, Pb^2^+, and Zn^2^+ by a dried green macroalga Caulerpa lentillifera was investigated. The removal efficiency increased with pH. The analysis with FT-IR indicated that possible functional groups involved in metal sorption by this alga were O-H bending, N-H bending, N-H stretching, C-N stretching, C-O, S?O stretching, and S-O stretching. The sorption of all metal ions rapidly reached equilibrium within 20min. The sorption kinetics of these metals were governed by external mass transfer and intraparticle diffusion processes. The sorption isotherm followed the Langmuir isotherm where the maximum sorption capacities was Pb^2^+>Cu^2^+>Cd^2^+>Zn^2^+.
