Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/66567
Type: Artigo de periódico
Title: Extraction of Alginate Biopolymer Present in Marine Alga Sargassum filipendula and Bioadsorption of Metallic Ions
Author: Kleinubing, SJ
Gaia, F
Bertagnolli, C
da Silva, MGC
Abstract: This paper studies the bioadsorption of Pb2+, Cu2+, Cd2+ and Zn2+ ions by marine alga Sargassum filipendula and by the alginate biopolymer extracted from this alga. The objective is to evaluate the importance of this biopolymer in removing different metallic ions by the marine alga S. filipendula. In the equilibrium study, the same affinity order was observed for both bioadsorbents: Pb2+ > Cu2+ > Zn2+ > Cd2+. For Pb2+ and Cu2+ ions when the alginate is isolated and acting as bioadsorbents, adsorption capacities greater than those found for the alga were observed, indicating that it is the main component responsible for the removal of metallic ions. For Zn2+ and Cd2+ ions, greater bioadsorption capacities were observed for the alga, indicating that other functional groups of the alga, such as sulfates and amino, are also important in the bioadsorption of these ions.
Subject: Sargassum filipendula
extraction
alginate
heavy metals
bioadsorption
Country: Brasil
Editor: Univ Fed Sao Carlos, Dept Engenharia Materials
Rights: aberto
Identifier DOI: 10.1590/S1516-14392013005000013
Date Issue: 2013
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.