AI Article Synopsis
- Onion-like carbon (OLC) was created from nanodiamond and tested for its ability to remove chromate ions from water.
- The study analyzed how temperature affects oxygen-carbon bonds and water that is chemically attached to the OLC using advanced techniques like X-ray photoelectron spectroscopy.
- Findings show that the types of carbon-oxygen bonds and carbon dangling bonds play a crucial role in effectively adsorbing chromate and other anionic heavy metals from wastewater.
Article 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.
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| http://dx.doi.org/10.1016/j.jhazmat.2016.08.041 | DOI Listing |
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