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https://olympias.lib.uoi.gr/jspui/handle/123456789/16731Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Tselepidou, A. | en |
| dc.contributor.author | Drosos, M. | en |
| dc.contributor.author | Stathi, P. | en |
| dc.contributor.author | Bourlinos, A. B. | en |
| dc.contributor.author | Zboril, R. | en |
| dc.contributor.author | Deligiannakis, Y. | en |
| dc.date.accessioned | 2015-11-24T18:33:24Z | - |
| dc.date.available | 2015-11-24T18:33:24Z | - |
| dc.identifier.issn | 0022-2461 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/16731 | - |
| dc.rights | Default Licence | - |
| dc.subject | hydrothermal carbonization | en |
| dc.subject | aqueous-solution | en |
| dc.subject | complexes | en |
| dc.subject | acid | en |
| dc.subject | coal | en |
| dc.subject | dissociation | en |
| dc.subject | remediation | en |
| dc.subject | adsorption | en |
| dc.subject | exchange | en |
| dc.subject | removal | en |
| dc.title | A water-dispersible, carboxylate-rich carbonaceous solid: synthesis, heavy metal uptake and EPR study | en |
| heal.type | journalArticle | - |
| heal.type.en | Journal article | en |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.identifier.secondary | <Go to ISI>://000299331500016 | - |
| heal.identifier.secondary | http://www.springerlink.com/content/t7v03077g64v003n/fulltext.pdf | - |
| heal.language | en | - |
| heal.access | campus | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.publicationDate | 2012 | - |
| heal.abstract | Thermal oxidation of Na-cholate hydrate at 300 A degrees C in air results in a carbonaceous solid (SC-30) nanomaterial bearing a steroid interior and a significant fraction of carboxylate sites. Electron Paramagnetic Resonance spectroscopy reveals that SC-30 bears a significant concentration of stable C-based radicals located at the interior of the steroid carbonaceous matrix. H-binding, determined by potentiometric acid-base titrations show that the SC-30 contains three types of H-binding sites. One type with pKa = 4.2 corresponds to surfacial metal-binding COOH groups. A second type of sites with pKa = 6.2 corresponds to COOH buried at the interior of the SC-30 carbon matrix, which are inactive in metal binding. A third type with pKa = 8.5-is also inactive in metal binding-originates from aggregated stacked-states like those observed for cholate in solution. The surfacial COO(-) carboxylate groups, confer the solid hydrophilic character, therefore it can be easily dispersed in water at high concentrations providing clear aqueous colloids. pH-edge metal uptake experiments and Surface Complexation Modelling show that SC-30 is an efficient heavy metal adsorbent in aqueous solution for Pb(2+) and Cu(2+) ions at pH 5-8. A structural/functional model is discussed based on the heterogeneous character of the SC-30 material. | en |
| heal.journalName | Journal of Materials Science | en |
| heal.journalType | peer reviewed | - |
| heal.fullTextAvailability | TRUE | - |
| Appears in Collections: | Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Tselepidou-2012-A water-dispersible.pdf | 526.16 kB | Adobe PDF | View/Open Request a copy |
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