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Characteristics Of Equilibrium, Kinetics Studies For Adsorption Of Fluoride On Magnetic-chitosan Particle.

W. Ma, Fei-Qun Ya, M. Han, R. Wang
Published 2007 · Chemistry, Medicine
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The magnetic-chitosan particle was prepared and characterized by the SEM, XRD, FT-IR and employed as an adsorbent for removal fluoride from the water solution in the batch system. The Langmuir isotherms, Bradley's isotherm, Freundlich isotherm and Dubinin-Kaganer-Radushkevich (DKR) isotherm were used to describe adsorption equilibrium. The kinetic process was investigated using the pseudo-first-order model, pseudo-second-order model and intra-particle diffusion model, respectively. The results show that the magnetic-chitosan particle is amorphous of irregular clumps in the surface with groups of RNH(2), RNH(3), Fe-O, etc. Bradley's equation and two-sites Langmuir isotherms were fitted well with the adsorption equilibrium data; the maximal amount of adsorption of 20.96-23.98 mg/l and free energy of 2.48 kJ/mol were obtained from the Bradley's equation, two-sites Langmuir isotherm and DKR modeling, respectively. The pseudo-second-order with the initial adsorption rate 2.08 mg/g min was suitable to describe the kinetic process of fluoride adsorption onto the adsorbent. In overall, the major mechanism of fluoride adsorption onto the heterogeneous surface of magnetic-chitosan particle was proposed in the study.



This paper is referenced by
10.1016/J.CEJ.2011.05.028
Fluoride removal from water by adsorption—A review
Amit Bhatnagar (2011)
10.1016/j.jhazmat.2012.07.065
Highly dispersed Co0.5Zn0.5Fe2O4/polypyrrole nanocomposites for cost-effective, high-performance defluoridation using a magnetically controllable microdevice.
G. Wang (2012)
10.1016/J.APSUSC.2015.09.121
Synthesis of novel Cu2O/BiOCl heterojunction nanocomposites and their enhanced photocatalytic activity under visible light
Chunhua Cao (2015)
10.1016/J.CCR.2019.02.006
Impact of fluoride in potable water – An outlook on the existing defluoridation strategies and the road ahead
M. Barathi (2019)
10.5004/DWT.2010.1586
Equilibrium and kinetic studies of fluoride adsorption by chitosan coated perlite
Y. Vijaya (2010)
10.1021/IE202189V
Fluoride Removal from Water using Bio-Char, a Green Waste, Low-Cost Adsorbent: Equilibrium Uptake and Sorption Dynamics Modeling
Dinesh Mohan (2012)
Defluoridation of water using adsorbents - A concise review
N. Sivarajasekar (2017)
10.4028/www.scientific.net/MSF.864.106
Adsorption-Sono Degradation Synergetic Removal of Methylene Blue by Magnetic Fe3O4-Nanographene Platelets (Fe3O4-NGP) Composites
Ardiansyah Taufik (2016)
10.1080/05704928.2016.1213737
Recent advances and spectroscopic perspectives in fluoride removal
Ankita Dhillon (2017)
10.1080/1536383X.2012.684188
Efficiency, Kinetics and Thermodynamics of Toluidine Blue Dye Removal from Aqueous Solution Using MWCNTs Decorated with NiFe2O4
Mahmoud Bahgat (2014)
10.1016/J.APSUSC.2015.02.002
Magnetically separable Cu2O/chitosan–Fe3O4 nanocomposites: Preparation, characterization and visible-light photocatalytic performance
Chunhua Cao (2015)
10.1088/1742-6596/776/1/012039
Better adsorption capacity of SnO2 nanoparticles with different graphene addition
V. Paramarta (2016)
10.1016/j.jhazmat.2010.11.102
Defluoridation from aqueous solutions by nano-alumina: characterization and sorption studies.
Eva Kumar (2011)
10.1063/5.0000279
Synthesis and characterization of coated magnetic nanoparticles and its application as coagulant for removal of oil droplets from oilfield produced water
Aya Saad Jawad (2020)
10.1016/J.SURFIN.2018.07.001
Kinetics and thermodynamics of defluoridation of drinking water using high performance hybrid zirconium (IV)-hexamethylenediamine: A comparative aspect with ion-exchanger amorphous zirconium (IV) phosphate
Prakash C. Patnaik (2018)
10.6088/IJES.00202030049
A comparative study on the batch performance of fluoride adsorption by activated silica gel and activated rice husk ash
Naba Kumar Mondal (2012)
10.1007/s11051-012-0964-8
Synthesis optimization and characterization of chitosan-coated iron oxide nanoparticles produced for biomedical applications
Gozde Unsoy (2012)
10.28933/AJCR-2017-03-2101
Synthesis of graphene oxide using tea-waste biochar as green substitute of graphite and its application in de-fluoridation of contaminated water
Swapnila Roy (2017)
Statistical Optimisation Of Defluoridation Using Novel Activated Carbon And Cellulose From Sugarcane Bagasse:Batch Isotherm And Kinetics Study
Swapnila Roy (2016)
10.1039/C5AY01044F
Rapid removal of fluoride from aqueous media using activated dolomite
Veena Chaudhary (2015)
10.1016/J.JECE.2018.09.031
Development of aluminum and zirconium based xerogel for defluoridation of drinking water: Study of material properties, solution kinetics and thermodynamics
Simpi Patel (2018)
10.1016/J.DESAL.2010.01.019
Fluoride removal efficiency from aqueous solution by synthetic iron(III)–aluminum(III)–chromium(III) ternary mixed oxide
Krishna Kanta Biswas (2010)
10.1016/j.aca.2016.02.025
Fluorimetric detection of pathogenic bacteria using magnetic carbon dots.
Mukesh Lavkush Bhaisare (2016)
10.1016/j.jhazmat.2008.09.072
Removal of cationic dyes from aqueous solution using magnetic multi-wall carbon nanotube nanocomposite as adsorbent.
Jilai Gong (2009)
10.1016/J.CEJ.2008.09.047
Adsorption of fluoride by hydrous iron(III)-tin(IV) bimetal mixed oxide from the aqueous solutions
Krishna Kanta Biswas (2009)
10.1016/J.CEJ.2009.09.033
Removal of perchlorate from aqueous solution using protonated cross-linked chitosan
Yanhua Xie (2010)
10.1016/j.jhazmat.2010.10.098
Removal of fluoride from aqueous solution by polypyrrole/Fe3O4 magnetic nanocomposite.
Madhumita Bhaumik (2011)
10.1016/J.CEJ.2014.06.101
Fluoride adsorption from aqueous solution by aluminum alginate particles prepared via electrostatic spinning device
Qiusheng Zhou (2014)
10.1016/J.APSUSC.2016.05.056
Removal of uranium and fluorine from wastewater by double-functional microsphere adsorbent of SA/CMC loaded with calcium and aluminum
Liping Wu (2016)
10.1007/s13762-014-0705-x
Otostegia persica biomass as a new biosorbent for the removal of lead from aqueous solutions
Seyed Amir Alavi (2014)
10.4028/www.scientific.net/AMR.343-344.909
Characteristics of Lysozyme Adsorption on Magnetic Fe3O4/Chitosan Nanoparticles at Fixed pH
Yan L. Lin (2011)
10.1007/s11696-019-00895-7
Fabrication of novel magnetic chitosan/graphene-oxide/metal oxide nanocomposite beads for Cr(VI) adsorption
Chrisanne. Naicker (2019)
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