title: Chitin Adsorbents for Toxic Metals: A Review.
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.
authors.affiliation: Laboratory of Soils and Agricultural Chemistry, Department of Natural Resources and Agricultural Engineering, Agricultural University of Athens, GR-118 55 Athens, Greece. ianastopoulos@ari.gov.cy.|Department of Agrobiotechnology, Agricultural Research Institute, P.O. Box 22016, 1516 Nicosia, Cyprus. ianastopoulos@ari.gov.cy.
authors.forename: Ioannis
authors.initials: I
authors.lastname: Anastopoulos
authors.affiliation: Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland. amit.bhatnagar@uef.fi.
authors.forename: Amit
authors.initials: A
authors.lastname: Bhatnagar
authors.affiliation: Division of Chemical Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece. dbic@chem.auth.gr.
authors.forename: Dimitrios N
authors.initials: DN
authors.lastname: Bikiaris
authors.affiliation: Hephaestus Advanced Laboratory, Eastern Macedonia and Thrace Institute of Technology, GR-65404 Kavala, Greece. georgekyzas@gmail.com.
authors.forename: George Z
authors.initials: GZ
authors.lastname: Kyzas
mesh_terms: D000327:Adsorption; D002686:Chitin / Q000737:chemistry*; D019216:Metals, Heavy / Q000302:isolation & purification*; D013816:Thermodynamics; D014874:Water Pollutants, Chemical / Q000302:isolation & purification
chemical_list: D019216:Metals, Heavy; D014874:Water Pollutants, Chemical; D002686:Chitin
keywords: adsorption; chitins; heavy metals; isotherms; thermodynamics