Chromate adsorption mechanism on nanodiamond-derived onion-like carbon

Young Jin Ko, Keunsu Choi, Soon-Jae Lee, Jung Min Cho, Heon Jin Choi, Seok Won Hong, Jae Woo Choi, Hiroshi Mizuseki, Wook Seong Lee

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The onion-like carbon (OLC) was prepared as adsorbent and tested for the removal of chromate ions from aqueous solutions. The OLC was thermally derived from nanodiamond by vacuum annealing at 1000–2000 °C. An investigation was conducted the chromate adsorption mechanism of OLC, by analysing the temperature-dependent evolution of the various oxygen-carbon bonds and the chemisorbed water by X-ray photo electron spectroscopy, as well as by the first principle calculation of the bond energies for relevant bond configurations. The present work demonstrated the importance of the carbon-oxygen bond type and carbon dangling bonds for chromate adsorption, as well as for other anionic heavy metals adsorbed from wastewater and sewage.

Original languageEnglish
Pages (from-to)368-375
Number of pages8
JournalJournal of Hazardous Materials
Volume320
DOIs
Publication statusPublished - 2016 Dec 15

Fingerprint

Nanodiamonds
Chromates
Onions
chromate
Adsorption
Carbon
adsorption
carbon
Oxygen
oxygen
Dangling bonds
annealing
Sewage
Vacuum
Waste Water
Heavy Metals
Adsorbents
X-ray spectroscopy
Heavy metals
Spectrum Analysis

Keywords

  • Adsorption
  • Chromate
  • Dangling bond
  • Hydroxyl functional group
  • Onion-like carbon

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

Cite this

Chromate adsorption mechanism on nanodiamond-derived onion-like carbon. / Ko, Young Jin; Choi, Keunsu; Lee, Soon-Jae; Cho, Jung Min; Choi, Heon Jin; Hong, Seok Won; Choi, Jae Woo; Mizuseki, Hiroshi; Lee, Wook Seong.

In: Journal of Hazardous Materials, Vol. 320, 15.12.2016, p. 368-375.

Research output: Contribution to journalArticle

Ko, YJ, Choi, K, Lee, S-J, Cho, JM, Choi, HJ, Hong, SW, Choi, JW, Mizuseki, H & Lee, WS 2016, 'Chromate adsorption mechanism on nanodiamond-derived onion-like carbon', Journal of Hazardous Materials, vol. 320, pp. 368-375. https://doi.org/10.1016/j.jhazmat.2016.08.041
Ko, Young Jin ; Choi, Keunsu ; Lee, Soon-Jae ; Cho, Jung Min ; Choi, Heon Jin ; Hong, Seok Won ; Choi, Jae Woo ; Mizuseki, Hiroshi ; Lee, Wook Seong. / Chromate adsorption mechanism on nanodiamond-derived onion-like carbon. In: Journal of Hazardous Materials. 2016 ; Vol. 320. pp. 368-375.
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AU - Hong, Seok Won

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