Publication detail

Study of Structure and Properties of Humic and Fulvic Acids. II. Study of Adsorption of Cu2+ Ions to Humic Acids Extracted from Lignite

KLUČÁKOVÁ, M., PEKAŘ, M.

Original Title

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

KLUČÁKOVÁ, M., PEKAŘ, M.

RIV year

2002

Released

1. 9. 2002

ISBN

0970-0838

Periodical

Journal of Polymer Materials

Year of study

Number

State

Republic of India

Pages from

287

Pages to

294

Pages count

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"
}