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New composite material based on Kaolinite, cement, TiO2 for efficient removal of phenol by photocatalysis

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Abstract

Photocatalysis is one of the most important process and was used to eliminate various organic pollutants as phenol in water. In this research study, a new composite containing Kaolinite, cement, and wood fibers modified by titanium oxide TiO2 was elaborated in order to be used in addition of building materials, as photocatalyst for the degradation of phenol. Different kinds and amounts of TiO2 (PC500, P90, and C-TiO2) were immobilized by a simple method inside the composite materials based. The matrix of the hybrid materials was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), N2 adsorption-desorption (BET), and scanning electron microscope (SEM). These investigations confirmed the dispersion of titania in the new composite materials. The FTIR result has shown that clay particles were successfully treated before their insertion in the composite, by the appearance of two peaks at 2921–2851 cm-1. The XRD results reveal the identification of crystalline phase of TiO2 as anatase. The photocatalytic activity of the composite materials was investigated towards degradation of phenol in aqueous solution under UV light irradiation (369 nm). It has been found that photocatalytic efficiency was significantly enhanced when TiO2 is added. The highest photocatalytic activity has been shown by 3% P90-comp of 41.65% in comparison with 3% PC500 and 3% C-TiO2 which are 29.88% and 22.64 %, respectively. It was shown that the experimental data of kinetic reaction are well fitted by first-order model.

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Most of the data generated or analyzed during this study are included in this published article. However, the corresponding author can provide the editor with additional information if requested.

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Acknowledgements

The authors would like to acknowledge the Erasmus+ KA 107 project and the FP7FP4BATIW Euro-Mediterranean project for their financial support.

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Latifa Morjène: PhD student: Investigation (carried out most of the laboratory experiments) writing – original draft.

Fadhel Aloulou: Assistant professor: Supervision of the first part of the work especially the elaboration of the composite material.

Minoo Tasbihi: Assistant professor: Investigation (helped enormously in the characterization of the composite materials as well as in the photocatalysis tests in Berlin)

Michael Schwarze: Professor: Investigation (helped enormously in the characterization of the composite materials as well as in the photocatalysis tests in Berlin)

Reinhard Schomaecker: Professor: Validation, visualization and writing – review & editing

Mongi Seffen: Professor: Validation, visualization and writing – review & editing

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Correspondence to Mongi Seffen.

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Morjène, L., Aloulou, F., Tasbihi, M. et al. New composite material based on Kaolinite, cement, TiO2 for efficient removal of phenol by photocatalysis. Environ Sci Pollut Res 28, 35991–36003 (2021). https://doi.org/10.1007/s11356-021-13150-y

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  • DOI: https://doi.org/10.1007/s11356-021-13150-y

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