Combination of carboxymethyl chitosan-coated magnetic nanoparticles and chitosan-citrate complex gel beads as a novel magnetic adsorbent

Fwu Long Mi, Shao Jung Wu, Yung Chih Chen

Research output: Contribution to journalArticle

44 Citations (Scopus)

Abstract

Abstract Magnetic chitosan beads were synthesized by incorporating N,O-carboxymethyl chitosan-coated magnetic nanoparticles (NOCC-MNPs) into chitosan-citrate gel beads (CCGBs) for adsorbing Cu(II) ions. An increase of Cu(II) adsorption capacity was due to the combined chelation effects from the electron-donating functional groups in the CCGBs and NOCC-MNPs. Moreover, the paramagnetic susceptibility of Cu(II) citrate chelates could further improve the Cu(II) adsorption efficiency through the force of magnetic attraction. The adsorption data of the magnetic CCGBs fitted well with the Freundlich model, whereas the adsorption kinetics followed the pseudo-second-order kinetic model. The maximal adsorption capacity as estimated by the Langmuir model was 294.11 mg/g. The adsorption thermodynamic parameters indicated that the involved process should be spontaneous and exothermic.

Original languageEnglish
Article number10019
Pages (from-to)255-263
Number of pages9
JournalCarbohydrate Polymers
Volume131
DOIs
Publication statusPublished - Jun 25 2015

Fingerprint

Chitosan
Adsorbents
Gels
Nanoparticles
Adsorption
Kinetics
Chelation
Citric Acid
Functional groups
carboxymethyl-chitosan
chitosan citrate
Thermodynamics
Ions
Electrons

Keywords

  • Adsorption
  • Chitosan
  • Citrate
  • Magnetic nanoparticles

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Combination of carboxymethyl chitosan-coated magnetic nanoparticles and chitosan-citrate complex gel beads as a novel magnetic adsorbent. / Mi, Fwu Long; Wu, Shao Jung; Chen, Yung Chih.

In: Carbohydrate Polymers, Vol. 131, 10019, 25.06.2015, p. 255-263.

Research output: Contribution to journalArticle

@article{be31e8898d7b46b2958e2aa88d3a0714,
title = "Combination of carboxymethyl chitosan-coated magnetic nanoparticles and chitosan-citrate complex gel beads as a novel magnetic adsorbent",
abstract = "Abstract Magnetic chitosan beads were synthesized by incorporating N,O-carboxymethyl chitosan-coated magnetic nanoparticles (NOCC-MNPs) into chitosan-citrate gel beads (CCGBs) for adsorbing Cu(II) ions. An increase of Cu(II) adsorption capacity was due to the combined chelation effects from the electron-donating functional groups in the CCGBs and NOCC-MNPs. Moreover, the paramagnetic susceptibility of Cu(II) citrate chelates could further improve the Cu(II) adsorption efficiency through the force of magnetic attraction. The adsorption data of the magnetic CCGBs fitted well with the Freundlich model, whereas the adsorption kinetics followed the pseudo-second-order kinetic model. The maximal adsorption capacity as estimated by the Langmuir model was 294.11 mg/g. The adsorption thermodynamic parameters indicated that the involved process should be spontaneous and exothermic.",
keywords = "Adsorption, Chitosan, Citrate, Magnetic nanoparticles",
author = "Mi, {Fwu Long} and Wu, {Shao Jung} and Chen, {Yung Chih}",
year = "2015",
month = "6",
day = "25",
doi = "10.1016/j.carbpol.2015.06.031",
language = "English",
volume = "131",
pages = "255--263",
journal = "Carbohydrate Polymers",
issn = "0144-8617",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Combination of carboxymethyl chitosan-coated magnetic nanoparticles and chitosan-citrate complex gel beads as a novel magnetic adsorbent

AU - Mi, Fwu Long

AU - Wu, Shao Jung

AU - Chen, Yung Chih

PY - 2015/6/25

Y1 - 2015/6/25

N2 - Abstract Magnetic chitosan beads were synthesized by incorporating N,O-carboxymethyl chitosan-coated magnetic nanoparticles (NOCC-MNPs) into chitosan-citrate gel beads (CCGBs) for adsorbing Cu(II) ions. An increase of Cu(II) adsorption capacity was due to the combined chelation effects from the electron-donating functional groups in the CCGBs and NOCC-MNPs. Moreover, the paramagnetic susceptibility of Cu(II) citrate chelates could further improve the Cu(II) adsorption efficiency through the force of magnetic attraction. The adsorption data of the magnetic CCGBs fitted well with the Freundlich model, whereas the adsorption kinetics followed the pseudo-second-order kinetic model. The maximal adsorption capacity as estimated by the Langmuir model was 294.11 mg/g. The adsorption thermodynamic parameters indicated that the involved process should be spontaneous and exothermic.

AB - Abstract Magnetic chitosan beads were synthesized by incorporating N,O-carboxymethyl chitosan-coated magnetic nanoparticles (NOCC-MNPs) into chitosan-citrate gel beads (CCGBs) for adsorbing Cu(II) ions. An increase of Cu(II) adsorption capacity was due to the combined chelation effects from the electron-donating functional groups in the CCGBs and NOCC-MNPs. Moreover, the paramagnetic susceptibility of Cu(II) citrate chelates could further improve the Cu(II) adsorption efficiency through the force of magnetic attraction. The adsorption data of the magnetic CCGBs fitted well with the Freundlich model, whereas the adsorption kinetics followed the pseudo-second-order kinetic model. The maximal adsorption capacity as estimated by the Langmuir model was 294.11 mg/g. The adsorption thermodynamic parameters indicated that the involved process should be spontaneous and exothermic.

KW - Adsorption

KW - Chitosan

KW - Citrate

KW - Magnetic nanoparticles

UR - http://www.scopus.com/inward/record.url?scp=84935012490&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84935012490&partnerID=8YFLogxK

U2 - 10.1016/j.carbpol.2015.06.031

DO - 10.1016/j.carbpol.2015.06.031

M3 - Article

C2 - 26256183

AN - SCOPUS:84935012490

VL - 131

SP - 255

EP - 263

JO - Carbohydrate Polymers

JF - Carbohydrate Polymers

SN - 0144-8617

M1 - 10019

ER -