Ko, Young-Jin Choi, Keunsu Lee, Soonjae Cho, Jung-Min Choi, Heon-Jin Hong, Seok Won Choi, Jae-Woo Mizuseki, Hiroshi Lee, Wook-Seong 2024-01-20T03:00:23Z 2024-01-20T03:00:23Z 2021-09-04 2016-12 0304-3894 https://pubs.kist.re.kr/handle/201004/123384 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 degrees 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. English Elsevier BV Chromate adsorption mechanism on nanodiamond-derived onion-like carbon Article 10.1016/j.jhazmat.2016.08.041 1 Journal of Hazardous Materials, v.320, pp.368 - 375 Journal of Hazardous Materials 320 368 375 N scie scopus 000385600700039 2-s2.0-84983515199 Engineering, Environmental Environmental Sciences Engineering Environmental Sciences & Ecology Article AUGMENTED-WAVE METHOD ACTIVATED CARBON WASTE-WATER HEXAVALENT CHROMIUM SURFACE MODIFICATION AQUEOUS-SOLUTION REMOVAL EQUILIBRIUM DIAMOND IRRADIATION Onion-like carbon Adsorption Chromate Dangling bond Hydroxyl functional group