Detail publikačního výsledku
The Effect of Supramolecular Humic Acids on the Diffusivity of Metal Ions in Agarose Hydrogel
KLUČÁKOVÁ, M.
Originální název
The Effect of Supramolecular Humic Acids on the Diffusivity of Metal Ions in Agarose Hydrogel
Anglický název
The Effect of Supramolecular Humic Acids on the Diffusivity of Metal Ions in Agarose Hydrogel
Druh
Článek WoS
Originální abstrakt
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.
Anglický abstrakt
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.
Klíčová slova
humic acids; diffusion; interaction; supramolecular; self-assembly; copper
Klíčová slova v angličtině
humic acids; diffusion; interaction; supramolecular; self-assembly; copper
Autoři
KLUČÁKOVÁ, M.
Rok RIV
2022
Vydáno
02.02.2022
Nakladatel
MDPI
ISSN
1420-3049
Periodikum
MOLECULES
Svazek
27
Číslo
3
Stát
Švýcarská konfederace
Strany od
1
Strany do
10
Strany počet
10
URL
Plný text v Digitální knihovně
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",
url="https://www.mdpi.com/1420-3049/27/3/1019"
}Dokumenty