Sorption and physical and chemical properties of hetarylformazane-modified cellulose sorbents

Authors

  • И. Г. Первова Pervova Inna G. - Professor of Chemistry, Head of the Department of physical and chemical technologies in environmental engineering, Institute of Plant-Based Chemistry and Industrial Ecology, Ural State Forest Engineering university, Ekaterinburg, Russia
  • Т. И. Маслакова Maslakova Tatiana I. - Associate professor, Department of physical and chemical technologies in environmental engineering, Institute of Plant-Based Chemistry and Industrial Ecology, Ural State Forest Engineering university, Ekaterinburg, Russia
  • А. В. Желновач Zhelnovatch Anastasia V. - PhD student, Department of physical and chemical technologies in environmental engineering, Institute of Plant-Based Chemistry and Industrial Ecology, Ural State Forest Engineering university, Ekaterinburg, Russia
  • П. А. Маслаков Maslakov Pavel А. - PhD student, Department of physical and chemical technologies in environmental engineering, Institute of Plant-Based Chemistry and Industrial Ecology, Ural State Forest Engineering university, Ekaterinburg, Russia
  • Е. И. Симонова Simonova Elena I. - Assistant, Department of pulp, paper and polymer technology, Institute of Plant-Based Chemistry and Industrial Ecology, Ural State Forest Engineering university, Ekaterinburg, Russia
  • А. В. Вураско Vurasko Alesia V. - Professor of Engineering, Head of Department, Department of pulp, paper and polymer technology, Institute of Plant-Based Chemistry and Industrial Ecology, Ural State Forest Engineering university, Ekaterinburg, Russia

DOI:

https://doi.org/10.17308/sorpchrom.2017.17/393

Keywords:

formazane, hard-phase supporter, modified sorbents, formazan adsorption, scanning electronic microscopy

Abstract

Advanced sorbents are synthesized by immobilizing hetarylformazans on cellulose carrier matrices.
The sorbents are applied for concentration and rapid determination of ions Cu(II) and Pb(II) in aqueous media.

While studying adsorption of formazans onto matrices obtained from rice husk and a composition of
rice husk and oat straw, it was established that quantity of the fixed formazan groups increases in the series:
benztiazolyl-<benzyl-benzimidazolyl-<diphenyl-pyrimidinylformazans. Presence of the acceptor carboxyl
group in the formazan structure results to increasing both amine group (NH) acidity and quantity of matrixfixed
formazan groups being in ionized state, and consequently, results to the spectral shift.
The report presents results of using of benzyl-benzimidazolyl-based sorbents for determining ions
Cu(II) in aqueous media. Increasing colour intensity of the synthesized chelate is in proportion to concentration
of ions Cu(II) in the range from 0.1 to 1.3 mg/dm3
.

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Published

2018-02-21

Issue

Vol. 17 No. 3 (2017): Sorption and chromatographic processes

Section

Статьи

How to Cite

Sorption and physical and chemical properties of hetarylformazane-modified cellulose sorbents. (2018). Sorbtsionnye I Khromatograficheskie Protsessy, 17(3), 398-406. https://doi.org/10.17308/sorpchrom.2017.17/393