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

doi:10.1016/j.jhazmat.2016.08.041

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 journal › Article › peer-review

11 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 language	English
Pages (from-to)	368-375
Number of pages	8
Journal	Journal of Hazardous Materials
Volume	320
DOIs	https://doi.org/10.1016/j.jhazmat.2016.08.041
Publication status	Published - 2016 Dec 15

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

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title = "Chromate adsorption mechanism on nanodiamond-derived onion-like carbon",

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.",

keywords = "Adsorption, Chromate, Dangling bond, Hydroxyl functional group, Onion-like carbon",

author = "Ko, {Young Jin} and Keunsu Choi and Soon-Jae Lee and Cho, {Jung Min} and Choi, {Heon Jin} and Hong, {Seok Won} and Choi, {Jae Woo} and Hiroshi Mizuseki and Lee, {Wook Seong}",

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doi = "10.1016/j.jhazmat.2016.08.041",

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T1 - Chromate adsorption mechanism on nanodiamond-derived onion-like carbon

AU - Ko, Young Jin

AU - Choi, Keunsu

AU - Lee, Soon-Jae

AU - Cho, Jung Min

AU - Choi, Heon Jin

AU - Hong, Seok Won

AU - Choi, Jae Woo

AU - Mizuseki, Hiroshi

AU - Lee, Wook Seong

PY - 2016/12/15

Y1 - 2016/12/15

N2 - 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.

AB - 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.

KW - Adsorption

KW - Chromate

KW - Dangling bond

KW - Hydroxyl functional group

KW - Onion-like carbon

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