Synthesis, characterization and sorption studies of nitrogen–doped carbon nanotubes

A. O. Osikoya, D. Wankasi, R. M.K. Vala, C. W. Dikio, A. O. Afolabi, N. Ayawei, E. D. Dikio

Research output: Contribution to journalArticle

Abstract

Nitrogen doped carbon nanotubes were synthesized using cobalt and silver co-catalyst on magnesium oxide support. Their morphological features were studied using Raman spectroscopy, energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray diffraction spectroscopy. Equilibrium and thermodynamic batch sorption experiments were carried using concentration, time and temperature effects respectively. The morphological images showed amorphous multiwall nanotubes with crystalline regions that are attributable to the doping of carbon nanotube with nitrogen. The sorption studies indicated a rapid uptake of Cr3+ by the nitrogen doped carbon nanotubes which was mainly diffusion controlled. The thermodynamic study suggests relatively low temperature (low energy) favoured sorption which is exothermic with a physic-sorption mechanism.

Original languageEnglish
Pages (from-to)125-134
Number of pages10
JournalDigest Journal of Nanomaterials and Biostructures
Volume10
Issue number1
Publication statusPublished - Jan 1 2015

Fingerprint

Carbon Nanotubes
sorption
Sorption
Carbon nanotubes
Nitrogen
carbon nanotubes
Thermodynamics
Spectrum Analysis
synthesis
Magnesium Oxide
nitrogen
Nanotubes
Temperature
Raman Spectrum Analysis
Physics
Cobalt
Transmission Electron Microscopy
Silver
X-Ray Diffraction
Electron Scanning Microscopy

All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

Osikoya, A. O., Wankasi, D., Vala, R. M. K., Dikio, C. W., Afolabi, A. O., Ayawei, N., & Dikio, E. D. (2015). Synthesis, characterization and sorption studies of nitrogen–doped carbon nanotubes. Digest Journal of Nanomaterials and Biostructures, 10(1), 125-134.
Osikoya, A. O. ; Wankasi, D. ; Vala, R. M.K. ; Dikio, C. W. ; Afolabi, A. O. ; Ayawei, N. ; Dikio, E. D. / Synthesis, characterization and sorption studies of nitrogen–doped carbon nanotubes. In: Digest Journal of Nanomaterials and Biostructures. 2015 ; Vol. 10, No. 1. pp. 125-134.
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Osikoya, AO, Wankasi, D, Vala, RMK, Dikio, CW, Afolabi, AO, Ayawei, N & Dikio, ED 2015, 'Synthesis, characterization and sorption studies of nitrogen–doped carbon nanotubes', Digest Journal of Nanomaterials and Biostructures, vol. 10, no. 1, pp. 125-134.

Synthesis, characterization and sorption studies of nitrogen–doped carbon nanotubes. / Osikoya, A. O.; Wankasi, D.; Vala, R. M.K.; Dikio, C. W.; Afolabi, A. O.; Ayawei, N.; Dikio, E. D.

In: Digest Journal of Nanomaterials and Biostructures, Vol. 10, No. 1, 01.01.2015, p. 125-134.

Research output: Contribution to journalArticle

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Osikoya AO, Wankasi D, Vala RMK, Dikio CW, Afolabi AO, Ayawei N et al. Synthesis, characterization and sorption studies of nitrogen–doped carbon nanotubes. Digest Journal of Nanomaterials and Biostructures. 2015 Jan 1;10(1):125-134.