Adsorption of Diclofenac Sodium and Tetracycline From Aqueous Solution Using PVA Films Prepared with Modal/Cotton Fiber Wastes

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Date

2024

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Publisher

John Wiley and Sons Inc

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info:eu-repo/semantics/closedAccess

Abstract

In this study, fiber-polymer composite films were prepared by adding 0.5 g, 1.0 g, and 1.5 g of modal/cotton (50 : 50) waste to 10 % PVA film, and the properties of the films were revealed by SEM, FTIR analyzes and swelling percentage. It is observed that the strength of the bonds in the FTIR analysis decreases when modal/cotton fibers are added to the PVA film. While a 406 % swelling is achieved in the PVA film, the swelling percentages of the films decrease when modal/cotton fibers are added to the PVA film, and a greater swelling is observed at pH 9 compared to pH 5. The adsorption efficiency of tetracycline and diclofenac sodium on the films was researched at different pH levels and film doses. Tetracycline removal reached its highest value at pH 9, while diclofenac sodium removal reached its highest value at pH 5. Langmuir and Freundlich isotherm models were determined for tetracycline and diclofenac sodium adsorption. Tetracycline removal is better described by the Freundlich isotherm model, whereas diclofenac sodium removal fits the Langmuir isotherm model better. As a result, films prepared with modal/cotton waste not only provide tetracycline and diclofenac sodium removal but also contribute to waste recycling by utilizing waste fiber materials. © 2024 Wiley-VCH GmbH.

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Keywords

Adsorption, diclofenac sodium, PVA film, tetracycline

Journal or Series

ChemistrySelect

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Volume

9

Issue

18

Citation