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Enhancing Natural Polymers-Based Materials Using Montmorillonite: Preparation, Characterization, and Environmental Applications

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Abstract

Materials based on xanthan (XG), lignin (LB), lignin esters (LBOL and LBST), and montmorillonite (CL) were successfully obtained and used as altered oils adsorbents. The density, porosity, and mechanical properties of the obtained materials were determined. Also, the dynamic vapor sorption test (DVS) was performed to evaluate the sorption capacity and specific surface area of the adsorbents. Scanning electron microscopy (SEM) was used to investigate the morphological aspect of materials. Adsorption experiments of altered argan and sunflower oil onto studied materials were carried out. It was found that XG/CL and XG/CL/LBOL retained the highest amount of both oils (over 75% of the total oil quantity). Kinetic studies indicated that the Pseudo-second-order (PSO) kinetic model provided a better fit to the data. Adsorption equilibrium data were well fitted to Henry, Langmuir, and Freundlich isotherm models. The addition of CL has provided materials with well-organized structures, and reusability in several adsorption/desorption cycles.

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  1. “Petru Poni” Institute of Macromolecular Chemistry, Grigore Ghica Vodă 41 A, 700487, Iasi, Romania

    Iuliana Spiridon, Adrian Bele, Irina Apostol, Maria Valentina Dinu & Narcis Anghel

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  1. Iuliana Spiridon
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  3. Irina Apostol
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IS: conceptualization, supervision, methodology, investigation, writing—review and editing. AB: investigation, methodology. IA: methodology, investigation, writing—original draft. MVD: investigation, methodology. NA: methodology, investigation, formal analysis.

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Correspondence to Narcis Anghel.

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Spiridon, I., Bele, A., Apostol, I. et al. Enhancing Natural Polymers-Based Materials Using Montmorillonite: Preparation, Characterization, and Environmental Applications. J Polym Environ (2023). https://doi.org/10.1007/s10924-023-03089-1

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