2008
DOI: 10.1002/ejic.200700776
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Adsorption of Metal Ions on an Activated Carbon/L‐Lysine Derivative Hybrid Compound

Abstract: The new compound N ε -(4-amino-1,6-dihydro-1-methyl-5-nitroso-6-oxopyrimidin-2-yl)-L-lysine (H 2 L) has been synthesised and its molecular structure determined by single-crystal X-ray diffraction methods. The Brönsted acid/base character of H 2 L has been determined in water in the pH range 2.5-10.0, and the nature of the observed protonation steps determined by potentiometric and spectrophotometric methods. The adsorption of H 2 L on a commercial activated carbon (AC) in aqueous solution is irreversible, main… Show more

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Cited by 15 publications
(16 citation statements)
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“…2c). These changes are similar to those reported for analogous 5-nitroso pyrimidine receptors [25,26,38,48]. Thus, this protonation is assigned to the C(5)NO chromophore of the pyrimidine moiety.…”
Section: Preparation and Acid-base Behavior Of H 4 Lsupporting
confidence: 81%
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“…2c). These changes are similar to those reported for analogous 5-nitroso pyrimidine receptors [25,26,38,48]. Thus, this protonation is assigned to the C(5)NO chromophore of the pyrimidine moiety.…”
Section: Preparation and Acid-base Behavior Of H 4 Lsupporting
confidence: 81%
“…For this reason, the control of the surface chemical functionalization of ACs without changing their textural properties [23] becomes a main objective in order to obtain efficient and selective carbon materials for metal ion recovery. We have reported a functionalization method of carbon materials [24][25][26][27][28][29][30] materials [31]. The procedure results in carbon/receptor hybrid materials.…”
Section: Introductionmentioning
confidence: 99%
“…The first one consisted on the preparation of Merck/Lys and Merck/Tren hybrid materials, which was done following previously described procedures. 12,15 The amounts of the receptors adsorbed were 0.71 mmol/g, in the case of Lys, and 0.43 mmol/g in the case of Tren. …”
Section: Preparation Of the Catalystsmentioning
confidence: 95%
“…12,14,15,17 The adsorption-desorption isotherms of N 2 on both hybrid materials together with these of Merck are shown in Figure 1. The pore size distributions obtained from the isotherms are collected in Figure 2.…”
Section: Characterization Of Merck/tren and Merck/lysmentioning
confidence: 99%
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