Cited by 268Adsorption and biosorption for pollutant removalEnvironmental remediation with nanomaterialsAdsorption, diffusion, and thermodynamic properties of materials

Heavy metal ion adsorption behavior in nitrogen-doped magnetic carbon nanoparticles: Isotherms and kinetic study

Shin, Keun-Young, Hong, Jin-Yong, Jang, Jyongsik·2011·Journal of Hazardous Materials

Abstract

To clarify the heavy metal adsorption mechanism of nitrogen-doped magnetic carbon nanoparticles (N-MCNPs), adsorption capacity was investigated from the adsorption isotherms, kinetics and thermodynamics points of view. The obtained results showed that the equilibrium adsorption behavior of Cr(3+) ion onto the N-MCNPs can be applied to the Langmuir model and pseudo-second-order kinetics. It indicated that the fabricated N-MCNPs had the homogenous surface for adsorption and all adsorption sites had equal adsorption energies. Furthermore, the adsorption onto N-MCNPs taken place through a chemical process involving the valence forces. According to the thermodynamics, the adsorption process is spontaneous and endothermic in nature which means that the adsorption capacity increases with increasing temperature due to the enhanced mobility of adsorbate molecules. The effects of the solution pH and the species of heavy metal ion on the adsorption uptake were also studied. The synthesized N-MCNPs exhibited an enhanced adsorption capacity for the heavy metal ions due to the high surface area and large amount of nitrogen contents.

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Crossref · 10.1016/j.jhazmat.2010.12.102

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Authors
Shin, K.-Y., Hong, J.-Y., & Jang, J.
Affiliations
Seoul National University (KR)
Corresponding author
Jang, Jyongsik
Venue
Journal of Hazardous Materials
Publisher
Elsevier BV
Published
2011-06
Volume
190
Issue
1-3
Pages
36-44
ISSN
0304-3894 (ISSN-L)
OpenAlex
W2049445536
Cited by
268
References
55
Citations by year
2026: 2 · 2025: 12 · 2024: 9 · 2023: 11 · 2022: 18 · 2021: 22 · 2020: 14 · 2019: 26 · 2018: 29 · 2017: 22 · 2016: 18 · 2015: 30 · 2014: 29 · 2013: 11 · 2012: 12
FWCI
8.44
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Hazardous Materials (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Engineering › Biomedical Engineering › Environmental remediation with nanomaterials
  • Physical Sciences › Chemistry › Spectroscopy › Adsorption, diffusion, and thermodynamic properties of materials
Keywords
heavy metal adsorption, chromium(III) adsorption, adsorption isotherms, Langmuir isotherm, pseudo-second-order kinetics, adsorption thermodynamics, pH effect on adsorption, heavy metal speciation, wastewater treatment
MeSH terms
Adsorption, Carbon, Chromium, Kinetics, Magnetics, Nitrogen, Thermodynamics, Metals, Heavy, Nanoparticles

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