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Application of calcium alginate-PANI@sawdust wood hydrogel bio-beads for the removal of orange G dye from aqueous solution

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Abstract

This work aims to investigate the adsorption performance of orange G (OG) dye from aqueous solutions employing PANI@sawdust biocomposite enrobed by calcium-alginate bio-beads (Alg-PANI@SD). The as-prepared adsorbent was characterized by scanning-electron-microscopy (SEM), X-ray energy-dispersive spectroscopy (EDS), and Fourier transforms infrared (FT-IR) spectroscopy and used to remove orange G dye from aqueous water. Batch tests were performed as a function of adsorbent dosage, pH, contact time, interfering ions, and initial OG dye concentration. Experimental results show that the kinetic model of pseudo-first-order (PFO) and Freundlich isotherm perfectly fit the entire experimental data. Additionally, the prepared composite exhibited an excellent regeneration capacity and reusability for OG dye removal. The results revealed that the as-prepared Alg-PANI@SD bio-beads have the potential to be applied as a low-cost adsorbent for the adsorption of OG dye from aqueous media.

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Authors and Affiliations

Authors

Contributions

Abdelaziz Imgharn: conceptualization, methodology, formal analysis, investigation, data curation, writing-original draft. Nouh Aarab: participation in the design. Abdelghani Hsini: writing-review and editing, investigation, methodology. Yassine Naciri: writing — review and editing, investigation, methodology. Mahmoud Elhoudi: investigation, methodology. Mohamed Ait Haki: writing — review and editing. Mohamed Laabd: conceptualization, validation, writing — review and editing, investigation, methodology. Rajae Lakhmiri: supervision. Abdallah Albourine: conceptualization, supervision.

Corresponding author

Correspondence to Abdallah Albourine.

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This study was approved by the research ethics committee of Ibn Zohr University.

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All the authors participated in this article.

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The authors declare no competing interests.

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Responsible Editor: Angeles Blanco.

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Imgharn, A., Aarab, N., Hsini, A. et al. Application of calcium alginate-PANI@sawdust wood hydrogel bio-beads for the removal of orange G dye from aqueous solution. Environ Sci Pollut Res 29, 60259–60268 (2022). https://doi.org/10.1007/s11356-022-20162-9

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  • DOI: https://doi.org/10.1007/s11356-022-20162-9

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