Release Kinetics of Potassium, Calcium, and Iron Cations from Carboxymethyl Cellulose Hydrogels at Different pH Values

Yi Qu; René Haverkamp; Zhaorui Jin; Désirée Jakobs-Schönwandt; Anant V Patel; Thomas Hellweg

doi:10.1002/cplu.202300368

Release Kinetics of Potassium, Calcium, and Iron Cations from Carboxymethyl Cellulose Hydrogels at Different pH Values

Chempluschem. 2023 Dec;88(12):e202300368. doi: 10.1002/cplu.202300368. Epub 2023 Nov 13.

Authors

Yi Qu^{1

2}, René Haverkamp¹, Zhaorui Jin³, Désirée Jakobs-Schönwandt², Anant V Patel², Thomas Hellweg¹

Affiliations

¹ Department of Chemistry, Physical and Biophysical Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany.
² Fermentation and Formulation of Biologicals and Chemicals, Bielefeld Institute of Applied Materials Research, Bielefeld University of Applied Sciences, Interaktion 1, 33619, Bielefeld, Germany.
³ Otto Schott Institute for Materials Research, Friedrich Schiller University Jena, Fraunhoferstraße 6, 07743, Jena, Germany.

PMID: 37881159
DOI: 10.1002/cplu.202300368

Abstract

In an in-depth study of the mechanism of cation release from carboxymethyl cellulose hydrogels synthesized through Schiff base reaction, we analyze the differences in the release kinetics of potassium, calcium, and iron cations with Peleg model at pH values of pH 3.5 and pH 8.5 using ICP-OES (inductively coupled plasma optical emission spectroscopy) technique.

Keywords: hydrogels; kinetics; slow release; small angle X-ray scattering; soft matter.

Grants and funding

EIP: 14 35 10/"Produktivität und Nachhaltigkeit in der Landwirtschaft" (EIP Agri)