Article

Polyvinylсhloride‐based anion exchanger for efficient removal of chromium (<scp>VI</scp>) from aqueous solutions

Davron BekchanovFaculty for Chemistry, Department of Polymer Chemistry National University of Uzbekistan Tashkent UzbekistanMukhtarjan MukhamedievFaculty for Chemistry, Department of Polymer Chemistry National University of Uzbekistan Tashkent UzbekistanPeter A. LieberzeitFaculty for Chemistry, Department of Physical Chemistry University of Vienna Vienna AustriaGulbakhor BabojonovaFaculty for Chemistry, Department of Polymer Chemistry National University of Uzbekistan Tashkent UzbekistanSunnat BotirovFaculty for Chemistry, Department of Polymer Chemistry National University of Uzbekistan Tashkent Uzbekistan

Polymers for Advanced Technologiesjournal2021en

ABI

Abstract

Abstract Chemical modification of plasticized polyvinylchloride with polyethylenepolyamine leads to anion exchange resin (PPE‐1). Different characterization techniques, such as XRD, FTIR, and SEM of PPE‐1 anion exchanger revealed weak base amino groups as well as macroporous structure morphology. PPE‐1 turned out effective to remove hexavalent chromium ions from aqueous media. Corresponding adsorption kinetics best fit the pseudo‐second order model that followed a Freundlich isotherm. In the case of hexavalent chromium ions, the maximum adsorption capacity of PPE‐1 was 218.4 mg/g. Thermodynamic data revealed spontaneous endothermic processes and a chemisorption reaction. In addition, results show that the anion exchanger (PPE‐1) has 98% for removing hexavalent chromium ions containing from wastewater.

Topics

Adsorption and biosorption for pollutant removal Extraction and Separation Processes Recycling and Waste Management Techniques

Identifiers

DOI: 10.1002/pat.5403

Citations and references

Cited by 12 49 references

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