Characterization of Sargassum sp. from Brazil and Evaluation of Cu²⁺ and Ni²⁺ Biosorption

Abstract:

Fundamental investigation on adsorption of Cu2+ and Ni2+ ions on Sargassum sp. was performed in fixed-bed column. The Langmuir isotherm fitted well the biosorption equilibrium and the maximum Cu2+ and Ni2+ uptake capacities were 1.35 and 1.06 mmolg- 1, respectively. Mappings of copper and nickel in the algae surface using energy dispersive X-ray spectroscopy indicated a homogeneous distribution of Cu- and Niadsorbent sites. Fourier-transform infrared analysis revealed that the main chemical groups involved in the copper and nickel biosorption were carboxyl, ether, alcoholic, amino, and sulphonic groups.

• Periodical: Advanced Materials Research (Volumes 71-73)
• Pages: 589-592
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.71-73.589
• Online since: May 2009
• Authors: S.J. Kleinübing, Eric Guibal, Meuris Gurgel Carlos da Silva
• Keywords: EDX, Fixed Bed Column, FT-IR, Scanning Electron Microscope (SEM), Wastewater

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