BIOMAT Database Logo BIOMAT Database Logo

Adsorption of As(III) on chitosan-Fe-crosslinked complex (Ch-Fe). 2011

Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí (UNIVALI), Itajaí, 88302-202 Santa Catarina, Brazil.

It was reported the adsorption of As(III) on the surface of the chitosan-Fe-crosslinked complex. Theoretical correlation of the experimental equilibrium adsorption data for As(III)/Ch-Fe system is best explained by the non-linearized form Langmuir-Freundlich isotherm model. At optimum conditions, pH 9.0, the maximum adsorption capacity, calculated using the Langmuir-Freundlich isotherm model was 13.4 mg g⁻¹. The adsorption kinetics of As(III) onto Ch-Fe are described by the pseudo-first-order kinetic equation. The results of the Mössbauer spectroscopy showed that there is no redox process on the surface of the adsorbent.

UI MeSH Term Description Entries
D007501 Iron A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN. Iron-56,Iron 56
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008956 Models, Chemical Theoretical representations that simulate the behavior or activity of chemical processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment. Chemical Models,Chemical Model,Model, Chemical
D003432 Cross-Linking Reagents Reagents with two reactive groups, usually at opposite ends of the molecule, that are capable of reacting with and thereby forming bridges between side chains of amino acids in proteins; the locations of naturally reactive areas within proteins can thereby be identified; may also be used for other macromolecules, like glycoproteins, nucleic acids, or other. Bifunctional Reagent,Bifunctional Reagents,Cross Linking Reagent,Crosslinking Reagent,Cross Linking Reagents,Crosslinking Reagents,Linking Reagent, Cross,Linking Reagents, Cross,Reagent, Bifunctional,Reagent, Cross Linking,Reagent, Crosslinking,Reagents, Bifunctional,Reagents, Cross Linking,Reagents, Cross-Linking,Reagents, Crosslinking
D006863 Hydrogen-Ion Concentration The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D000327 Adsorption The adhesion of gases, liquids, or dissolved solids onto a surface. It includes adsorptive phenomena of bacteria and viruses onto surfaces as well. ABSORPTION into the substance may follow but not necessarily. Adsorptions
D001151 Arsenic A shiny gray element with atomic symbol As, atomic number 33, and atomic weight 75. It occurs throughout the universe, mostly in the form of metallic arsenides. Most forms are toxic. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), arsenic and certain arsenic compounds have been listed as known carcinogens. (From Merck Index, 11th ed) Arsenic-75,Arsenic 75
D014874 Water Pollutants, Chemical Chemical compounds which pollute the water of rivers, streams, lakes, the sea, reservoirs, or other bodies of water. Chemical Water Pollutants,Landfill Leachate,Leachate, Landfill,Pollutants, Chemical Water
D048271 Chitosan Deacetylated CHITIN, a linear polysaccharide of deacetylated beta-1,4-D-glucosamine. It is used in HYDROGEL and to treat WOUNDS. Poliglusam

Related Publications

Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Adsorption of Cr(VI) using Fe-crosslinked chitosan complex (Ch-Fe).
July 2010, Journal of hazardous materials,
Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Adsorption behavior of Fe(II) and Fe(III) ions on thiourea cross-linked chitosan with Fe(III) as template.
April 2012, Molecules (Basel, Switzerland),
Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Adsorption characteristics of Fe(III) and Fe(III)-NTA complex on granular activated carbon.
January 2004, Journal of hazardous materials,
Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Adsorption behaviour of Fe(II) and Fe(III) ions in aqueous solution on chitosan and cross-linked chitosan beads.
March 2005, Bioresource technology,
Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Adsorption of hexavalent chromium by crosslinked chitosan-iron(III) in an air-lift reactor.
January 2016, Water science and technology : a journal of the International Association on Water Pollution Research,
Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Adsorption of gold(III), platinum(IV) and palladium(II) onto glycine modified crosslinked chitosan resin.
June 2008, Bioresource technology,
Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Perchlorate adsorption onto epichlorohydrin crosslinked chitosan hydrogel beads.
March 2021, The Science of the total environment,
Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Chitosan-Fe (III) Complex as a Phosphate Chelator in Uraemic Rats: A Novel Treatment Option.
January 2018, Basic & clinical pharmacology & toxicology,
Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Selective adsorption of apoferritin on immobilized Fe(III): demonstration of Fe(III) binding sites.
February 1990, Biotechnology and applied biochemistry,
Helen Helena Dos Santos, and Carla Albertina Demarchi, and Clovis Antonio Rodrigues, and Jean Marc Greneche, and Nataliya Nedelko, and Anna Slawska-Waniewska
Adsorption properties of crosslinked carboxymethyl-chitosan resin with Pb(II) as template ions.
August 2006, Journal of hazardous materials,
Copied contents to your clipboard!