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Int. J. Mol. Sci. 2017, 18(1), 114; doi:10.3390/ijms18010114

Chitin Adsorbents for Toxic Metals: A Review

1
Laboratory of Soils and Agricultural Chemistry, Department of Natural Resources and Agricultural Engineering, Agricultural University of Athens, GR-118 55 Athens, Greece
2
Department of Agrobiotechnology, Agricultural Research Institute, P.O. Box 22016, 1516 Nicosia, Cyprus
3
Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland
4
Division of Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
5
Hephaestus Advanced Laboratory, Eastern Macedonia and Thrace Institute of Technology, GR-65404 Kavala, Greece
*
Authors to whom correspondence should be addressed.
Academic Editors: Hitoshi Sashiwa and Shinsuke Ifuku
Received: 29 November 2016 / Revised: 29 December 2016 / Accepted: 4 January 2017 / Published: 7 January 2017
(This article belongs to the Special Issue Chitins 2016)
View Full-Text   |   Download PDF [739 KB, uploaded 7 January 2017]   |  

Abstract

Wastewater treatment is still a critical issue all over the world. Among examined methods for the decontamination of wastewaters, adsorption is a promising, cheap, environmentally friendly and efficient procedure. There are various types of adsorbents that have been used to remove different pollutants such as agricultural waste, compost, nanomaterials, algae, etc., Chitin (poly-β-(1,4)-N-acetyl-d-glucosamine) is the second most abundant natural biopolymer and it has attracted scientific attention as an inexpensive adsorbent for toxic metals. This review article provides information about the use of chitin as an adsorbent. A list of chitin adsorbents with maximum adsorption capacity and the best isotherm and kinetic fitting models are provided. Moreover, thermodynamic studies, regeneration studies, the mechanism of adsorption and the experimental conditions are also discussed in depth. View Full-Text
Keywords: chitins; adsorption; heavy metals; isotherms; thermodynamics chitins; adsorption; heavy metals; isotherms; thermodynamics
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Anastopoulos, I.; Bhatnagar, A.; Bikiaris, D.N.; Kyzas, G.Z. Chitin Adsorbents for Toxic Metals: A Review. Int. J. Mol. Sci. 2017, 18, 114.

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