Detail publikace

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.

Originální název

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

KLUČÁKOVÁ, M., PEKAŘ, M.

Rok RIV

2002

Vydáno

1. 9. 2002

ISSN

0970-0838

Periodikum

Journal of Polymer Materials

Ročník

Číslo

Stát

Indická republika

Strany od

287

Strany do

294

Strany počet

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"
}