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Efficient photocatalytic degradation of Congo red and other dyes by ternary TiO2/Y2O3@g-C3N4 nanohybrid

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Abstract

A ternary TiO2/Y2O3@g-C3N4 nanocomposite was fabricated by a simple sonochemical method and its photocatalytic activity for organic pollutants was examined. X-ray diffraction analysis, transmission electron microscopy coupled with elemental chemical composition confirmed the formation of network-like nanostructure composed of Y2O3/TiO2 nanoparticles coupled with g-C3N4 nanosheets. Due to its large surface area, low band gap energy, and the presence of photogenerated holes, electrons, and hydroxyl radicals, the nanohybrid composite exhibited excellent photocatalytic degradation of Congo Red dye in an aqueous solution under optimized operational conditions, i.e., 100% for a short time of 60 min. The photodegradation kinetics was validated by the pseudo-first-order model and the photodegradation mechanism was elucidated. This study provides insights into the degradation of hazardous and toxic organic pollutants under visible light illumination.

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Acknowledgements

The authors would like to acknowledge the support of Prince Sultan University for overall support of this publication.

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Authors and Affiliations

  1. Department of Mathematics and Science, College of Humanities and Sciences, Prince Sultan University, 11586, Riyadh, Saudi Arabia

    Rasha A. Abumousa & M. Bououdina

  2. Department of Chemistry, College of Science and Arts, Qassim University, Ar Rass, Saudi Arabia

    Mohamed Ali Ben Aissa & A. Modwi

  3. Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 11623, Riyadh, Saudi Arabia

    Lotfi Khezami

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  1. Rasha A. Abumousa
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  2. M. Bououdina
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  3. Mohamed Ali Ben Aissa
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  5. A. Modwi
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Contributions

All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Rasha A. Abumousa, M. Bououdina, Mohamed Ali Ben Aissa, Lotfi Khezami and A. Modwi. The first draft of the manuscript was written by Rasha A. Abumousa and A. Modwi, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Abumousa, R.A., Bououdina, M., Ben Aissa, M.A. et al. Efficient photocatalytic degradation of Congo red and other dyes by ternary TiO2/Y2O3@g-C3N4 nanohybrid. J Mater Sci: Mater Electron 35, 486 (2024). https://doi.org/10.1007/s10854-024-12264-6

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