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KLUČÁKOVÁ, M., PEKAŘ, M.
Original Title
Study of Structure and Properties of Humic and Fulvic Acids. II. Study of Adsorption of Cu2+ Ions to Humic Acids Extracted from Lignite
Type
journal article - other
Language
English
Original Abstract
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.
Keywords
Humic acid, adsorption, metal binding ability,
Authors
RIV year
2002
Released
1. 9. 2002
ISBN
0970-0838
Periodical
Journal of Polymer Materials
Year of study
19
Number
3
State
Republic of India
Pages from
287
Pages to
294
Pages count
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" }