Publication detail

Transport of Cu(II) ions in humic gels - influence of reactive functional groups of humic acids

KLUČÁKOVÁ, M. KALINA, M.

Original Title

Transport of Cu(II) ions in humic gels - influence of reactive functional groups of humic acids

English Title

Transport of Cu(II) ions in humic gels - influence of reactive functional groups of humic acids

Type

abstract

Language

en

Original Abstract

Reactivity and transport properties of metal ions in humic systems are important both for understanding role of humic substances in natural systems and human-driven applications. This work is focused on Cu(II) ions transport and immobilization in hydrogels based on several humic acids differing in isolation conditions and raw materials. Prepared humic gels contained different amounts of reactive functional groups (with different affinity to metal ions) in order to study an effect of structurev and properties of humic acids and selective blocking of carboxylic groups (by methylation) on the mobility and immobilization of Cu(II) ions in gel structure. The experimental arrangement was selected to enable an instantaneous planar source method for data processing based on the determination of concentration distribution of Cu(II) ions in hydrogels. The resulting values of effective diffusion coefficient include both the effect of hydrogels structure and the effect of the reaction between Cu(II) ions and humic acids. The blocking of functional groups reflected in a lower values of diffusivity in comparison to the gels prepared from unmodified humic acids. There was also confirmed the effect of isolation procedure of humic acids and their properties on the diffusivity of Cu(II) ions in hydrogels.

English abstract

Reactivity and transport properties of metal ions in humic systems are important both for understanding role of humic substances in natural systems and human-driven applications. This work is focused on Cu(II) ions transport and immobilization in hydrogels based on several humic acids differing in isolation conditions and raw materials. Prepared humic gels contained different amounts of reactive functional groups (with different affinity to metal ions) in order to study an effect of structurev and properties of humic acids and selective blocking of carboxylic groups (by methylation) on the mobility and immobilization of Cu(II) ions in gel structure. The experimental arrangement was selected to enable an instantaneous planar source method for data processing based on the determination of concentration distribution of Cu(II) ions in hydrogels. The resulting values of effective diffusion coefficient include both the effect of hydrogels structure and the effect of the reaction between Cu(II) ions and humic acids. The blocking of functional groups reflected in a lower values of diffusivity in comparison to the gels prepared from unmodified humic acids. There was also confirmed the effect of isolation procedure of humic acids and their properties on the diffusivity of Cu(II) ions in hydrogels.

Keywords

humic gel, diffusion, reactivity

Released

01.09.2014

Publisher

Technion Israel Institute of Technology

Location

Haifa

Pages from

70

Pages to

70

Pages count

1

Documents

BibTex


@misc{BUT109634,
  author="Martina {Klučáková} and Michal {Kalina}",
  title="Transport of Cu(II) ions in humic gels - influence of reactive functional groups of humic acids",
  annote="Reactivity and transport properties of metal ions in humic systems are important both for understanding role of humic substances in natural systems and human-driven applications. This work is focused on Cu(II) ions transport and immobilization in hydrogels based on several humic acids differing in isolation conditions and raw materials. Prepared humic gels contained different amounts of reactive functional groups (with different affinity to metal ions) in order to study an effect of structurev and properties of humic acids and selective blocking of carboxylic groups (by methylation) on the mobility and immobilization of Cu(II) ions in gel structure. The experimental arrangement was selected to enable an instantaneous planar source method for data processing based on the determination of concentration distribution of Cu(II) ions in hydrogels. The resulting values of effective diffusion coefficient include both the effect of hydrogels structure and the effect of the reaction between Cu(II) ions and humic acids. The blocking of functional groups reflected in a lower values of diffusivity in comparison to the gels prepared from unmodified humic acids. There was also confirmed the effect of isolation procedure of humic acids and their properties on the diffusivity of Cu(II) ions in hydrogels.",
  address="Technion Israel Institute of Technology",
  booktitle="ECIS 2014 28 th Conference of The European Colloid and Interface Society",
  chapter="109634",
  institution="Technion Israel Institute of Technology",
  year="2014",
  month="september",
  pages="70--70",
  publisher="Technion Israel Institute of Technology",
  type="abstract"
}