Publication detail

The Effect of Supramolecular Humic Acids on the Diffusivity of Metal Ions in Agarose Hydrogel

KLUČÁKOVÁ, M.

Original Title

The Effect of Supramolecular Humic Acids on the Diffusivity of Metal Ions in Agarose Hydrogel

Type

journal article in Web of Science

Language

English

Original Abstract

Humic acids are known as natural substances of a supramolecular nature. Their self-assembly ability can affect the migration of heavy metals and other pollutants in nature. The formation of metal-humic complexes can decrease their mobility and bioavailability. This study focuses on metal ions diffusion and immobilization in humic hydrogels. Humic acids were purchased from International Humic Substances Society (isolated from different matrices—peat, soil, leonardite, water) and extracted from lignite mined in Czech Republic. Copper(II) ions were chosen as a model example of reactive metals for the diffusion experiments. The model of instantaneous planar source was used for experimental data obtained from monitoring the time development of copper(II) ions distribution in hydrogel. The effective diffusion coefficients of copper(II) ions showed the significant dependence on reaction ability of humic hydrogels. Lower amounts of the acidic functional groups caused an increase in the effective diffusion coefficient. In general, diffusion experiments seem to act as a valuable method for reactivity mapping studies on humic substances.

Keywords

humic acids; diffusion; interaction; supramolecular; self-assembly; copper

Authors

KLUČÁKOVÁ, M.

Released

2. 2. 2022

Publisher

MDPI

ISBN

1420-3049

Periodical

MOLECULES

Year of study

27

Number

3

State

Swiss Confederation

Pages from

1

Pages to

10

Pages count

10

URL

https://www.mdpi.com/1420-3049/27/3/1019

Full text in the Digital Library

http://hdl.handle.net/11012/203899

BibTex

@article{BUT176271,
  author="Martina {Klučáková}",
  title="The Effect of Supramolecular Humic Acids on the Diffusivity of Metal Ions in Agarose Hydrogel",
  journal="MOLECULES",
  year="2022",
  volume="27",
  number="3",
  pages="1--10",
  doi="10.3390/molecules27031019",
  issn="1420-3049",
  url="https://www.mdpi.com/1420-3049/27/3/1019"
}