2010
DOI: 10.1007/s10853-010-4854-0
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Pyrolytic formation of a carbonaceous solid for heavy metal adsorption

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Cited by 13 publications
(22 citation statements)
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“…Similar signals have been also recorded for other carbon-based materials, like a carbonaceous material formed by solid-state pyrolysis of acetylenedicarboxylic acid. [47] The g-value (2.0032), is higher than the g-values for graphitic nanoparticles (g=2.0023) or carbon nanohorns (g=2.0023). This indicates localization of the unpaired spin on O-atoms.…”
Section: Intrinsic Radicals Of Starbon Materialsmentioning
confidence: 79%
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“…Similar signals have been also recorded for other carbon-based materials, like a carbonaceous material formed by solid-state pyrolysis of acetylenedicarboxylic acid. [47] The g-value (2.0032), is higher than the g-values for graphitic nanoparticles (g=2.0023) or carbon nanohorns (g=2.0023). This indicates localization of the unpaired spin on O-atoms.…”
Section: Intrinsic Radicals Of Starbon Materialsmentioning
confidence: 79%
“…Progressive saturation analysis was performed as described previously. [47] Spin quantification was done using 2,2-diphenyl-1-picrylhydrazyl (DPPH) as spin standard. [48] 3.…”
Section: As (Iii) Determination Using Cathodic Stripping Voltammetry mentioning
confidence: 99%
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“…The spectrum of CNWs (a) is typical for carbonaceous materials, and shows a broad absorption envelope in the frequency region of 1700−1000 cm −1 , exhibiting three maxima at around 1561, 1360 and 1200 cm −1 . According to previous studies on graphitized carbon, these peaks can be assigned to the asymmetric and symmetric stretching vibrations of the -COO − units close to aromatic rings [22,23]. These peaks are representative of the presence of carbonyl groups on CNWs.…”
Section: Structural Characterization and Materials Properties Of The Nmentioning
confidence: 80%
“…3450cm Στην πρωτονιομένη μορφή του υλικού, στο φάσμα απορρόφησης υπερύθρου mes-COOH χάνεται η ισχυρής έντασης ταινία στους 1580cm -1 των δονήσεων έκτασης των ομάδων -COOκαι τη θέση της στο φάσμα υπερύθρου παίρνει η ταινία στους 1590cm -1 που οφείλεται στις δονήσεις των ατόμων του άνθρακα με sp 2 υβριδισμό. Παράλληλα στο ίδιο φάσμα υπερύθρου εμφανίζεται η νέα ταινία στους 1716cm -1 που αντιστοιχεί στις δονήσεις έκτασης των πρωτονιομένων πλέον καρβονυλικών ομάδων -COOH ενώ ο ώμος στους 1227cm -1 των δονήσεων C-O των αιθερικών/υδροξυλικών ομάδων του φάσματος του mes-COONa, στην πρωτονιομένη μορφή του μεσοπορώδους άνθρακα mes-COOH αυξάνεται σε ένταση [122].…”
Section: δομικά χαρακτηριστικά-φασματοσκοπία Ft-irunclassified