Chitosan microspheres/sodium alginate hybrid beads: an efficient green adsorbent for heavy metals removal from aqueous solutions

Heavy metal toxicity has demonstrated to be a crucial issue for environment and human health. There has been an increasing ecological and global public health concern related with environmental contamination by these metals. For these reasons, a considerable attention has been paid to design efficie...

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Bibliographic Details
Published inSustainable environment research Vol. 29; no. 1; pp. 1 - 11
Main Authors Ablouh, El-houssaine, Hanani, Zouhair, Eladlani, Nadia, Rhazi, Mohammed, Taourirte, Moha
Format Journal Article
LanguageEnglish
Published Tainan City BioMed Central 19.03.2019
BMC
Subjects
Adsorbents
Adsorption
Chitosan microspheres
Chromium
Clean technology
Efficiency
Fourier transforms
Green adsorbent
Heavy metals
Lead
Metal concentrations
Metal industry wastewaters
Metal ions
Polymers
Public health
Sodium
Sodium alginate
Toxicity
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Summary:Heavy metal toxicity has demonstrated to be a crucial issue for environment and human health. There has been an increasing ecological and global public health concern related with environmental contamination by these metals. For these reasons, a considerable attention has been paid to design efficient materials for heavy metal removal. This article offers a solution to develop a green adsorbent based on Chitosan Microspheres/Sodium Alginate hybrid beads (CSM/SA) for metal ion elimination from aqueous solutions. The efficiency of this eco-friendly material was divulged using kinetic study for Cr(VI) and Pb(II) removal. Properties of the obtained hybrid beads were improved by correlation between original chitosan microspheres and sodium alginate. Moreover, at different metal concentration, pH solution and contact time, the beads were evaluated in discharged batch operations from Pb(II) and Cr(VI). The maximum adsorption capacity was 180 mg g− 1 for Pb(II) and 16 mg g− 1 for Cr(VI). The adsorption kinetics were evaluated using pseudo-first and pseudo-second rate models. Adsorption isotherms were simulated by Langmuir and Freundlich models. This study indicates that the CSM/SA hybrid beads could be developed into a very sustainable technology for highly effective elimination of metal ions from wastewater.
ISSN:2468-2039
2468-2039
DOI:10.1186/s42834-019-0004-9