Adsorption kinetics and mechanism analysis of cyan printing dye on polyethylene microplastics

Printing on polymer materials might result with generation of coloured wastewater, enriched with a certain amount of microplastics in a form of polyethylene or polypropylene. In that way, microplastics may acquire the function of carriers of synthetic dyes, heavy metals and other polluting substance...

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Bibliographic Details
Main Authors: Gvoić Vesna
Lončarski Maja
Tubić Aleksandra
Vasiljević Sanja
Krčmar Dejan
Agbaba Jasmina
Prica Miljana
Corporate Author: International Symposium on Analytical and Environmental Problems (26.) (2020) (Szeged)
Format: Book part
Published: 2020
Series:Proceedings of the International Symposium on Analytical and Environmental Problems 26
Kulcsszavak:Kémia
Subjects:
Online Access:http://acta.bibl.u-szeged.hu/73981
Description
Summary:Printing on polymer materials might result with generation of coloured wastewater, enriched with a certain amount of microplastics in a form of polyethylene or polypropylene. In that way, microplastics may acquire the function of carriers of synthetic dyes, heavy metals and other polluting substances. In this paper, kinetics and adsorption mechanism of printing Cyan dye on polyethylene (powdered and granulated), as one of the most common types of microplastics, were investigated. The experiments were performed in a batch mode, in laboratory conditions. Based on the obtained results, a similar adsorption rate degree of selected printing dye was determined on granulated (adsorbed amount was 48.04 µg/g) and powdered material (adsorbed amount was 44.32 µg/g). The adsorption data were fitted well by pseudo-second-order kinetics, while isotherm studies were evaluated using two models: Langmuir and Freundlich. Freundlich and Langmuir equations showed similar performances to fit the solid/liquid distribution of Cyan dye on powdered polyethylene (R2 = 0.987), whereas Langmuir equation showed slightly better performances for granulated polyethylene than Freundlich equation.
Physical Description:147-151
ISBN:978-963-306-771-0