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Development of novel and ecological keratin/cellulose-based composites for absorption of oils and organic solvents

  • Selected Case Studies on the Environment of the Mediterranean and Surrounding Regions
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Abstract

Keratin/cellulose cryogels were successfully fabricated using chicken feathers (CF) and cardboard (C) from environmental waste for the first time, to be exploited in oil/solvent absorption. The keratin/cellulose-based composites were obtained by combining the dissolution of CF and C waste in 1-butyl-3-methylimidazolium chloride (BmimCl+) ionic liquid green solvent via regeneration, simply by the freeze-drying method. The characterization analysis of the synthesized keratin/cellulose-based composites was performed using Fourier transform infrared spectrometry, X-ray diffractometry, scanning electron microscopy, and thermogravimetry. The as-prepared cryogel can absorb various oils and organic solvents. Moreover, its sorption capacity can reach up to 6.9–17.7 times the weight of the initial cryogel. This kind of CF/C cryogel revealed good and fast absorption efficiency. It could also be reused by simple absorption/distillation and absorption/desorption methods. Through the kinetic analysis, it was found that the pseudo-second-order model was more appropriate for the keratin/cellulose cryogel oil absorption process. Besides, owing to its low cost, good absorption capacity, and excellent reusability, this cryogel has potential for spill cleanup of oils and organic solvents.

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The authors declare that the data supporting the findings of this study are available within the article.

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Acknowledgments

The authors thank Madame Rim Najjar for her help in editing, correcting, and proofreading the English of the manuscript.

Funding

This work was partially supported by the Tunisian Ministry of Higher Education and Scientific Research and the University of Gabes.

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Authors

Contributions

K.G. performed all the experiments, analyzed the data, and wrote the manuscript. R.B.A. supervised the entire work and reviewed the paper. K.M. supervised the entire work and reviewed the paper. C.V. contributed in the Brunauer, Emmett, and Teller (BET) surface area measurements and analysis. L.M. contributed in the X-ray diffraction (XRD) measurements. L.J. contributed in the scanning electron microscopy (SEM) analysis. G.S. contributed in the TGA/DTG analysis. A.G. supervised the entire work and reviewed the paper.

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Correspondence to Khawla Guiza.

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The authors declare that they have no conflict of interest.

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Responsible Editor: Tito Roberto Cadaval Jr

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Guiza, K., Ben Arfi, R., Mougin, K. et al. Development of novel and ecological keratin/cellulose-based composites for absorption of oils and organic solvents. Environ Sci Pollut Res 28, 46655–46668 (2021). https://doi.org/10.1007/s11356-020-11260-7

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  • DOI: https://doi.org/10.1007/s11356-020-11260-7

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