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KLUČÁKOVÁ, M., PEKAŘ, M.
Originální název
Study of Structure and Properties of Humic and Fulvic Acids. II. Study of Adsorption of Cu2+ Ions to Humic Acids Extracted from Lignite
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
Equilibrium adsorption of Cu2+ ions from their solutions by partially soluble humic acids (HA) has been studied. HA were obtained from South-Moravia lignite by means of alkaline extraction. Total acidity of HA, determined on the basis of conductometric titration, was used in mathematical description of process kinetics and equilibrium. Adsorbed amount of Cu2+ ions was calculated from their concentration decay in solution, which was measured spectrophotometrically. Multistep mechanism was proposed and used in description of equilibrium and kinetic data. Ideas underlying Langmuir adsorption theory were applied in this analysis. Dependence of adsorption coefficients and apparent rate constants on pH was discussed. FT-IR spectroscopy was used for characterization of the products.
Klíčová slova
Humic acid, adsorption, metal binding ability,
Autoři
Rok RIV
2002
Vydáno
1. 9. 2002
ISSN
0970-0838
Periodikum
Journal of Polymer Materials
Ročník
19
Číslo
3
Stát
Indická republika
Strany od
287
Strany do
294
Strany počet
8
BibTex
@article{BUT40920, author="Martina {Klučáková} and Lubomír {Lapčík} and Miloslav {Pekař}", title="Study of Structure and Properties of Humic and Fulvic Acids. II. Study of Adsorption of Cu2+ Ions to Humic Acids Extracted from Lignite", journal="Journal of Polymer Materials", year="2002", volume="19", number="3", pages="8", issn="0970-0838" }