Abstract
Cobalt-doped TiO2 nanoparticles were prepared and characterized by FT-IR, TEM, SEM, and XRD. The surface morphology was sphere-shaped with ~ 26.46 nm of the size of the nanoparticles. Ninety percent atenolol photodegradation was obtained with 15 mg/L concentration, 40 min stirring time, 2 pH, 2.0 g/L dosage of nanoparticles, 200.0 nm irradiation UV wavelength, and hydrogen peroxide amount 2.0 mL/L at 30 °C temp. Atenolol photodegradation conformed the first-order kinetics with a mechanism comprising atenolol sorption on the doped TiO2 nanoparticles and its degradation in UV irradiation. Hole (h+) and electron (e−) pairs are produced by doped TiO2 nanoparticles, creating hydroxyl free radicals and superoxide oxygen anions. These species break down atenolol.
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This study is funded by the Deanship of Scientific Research, King Saud University through research group no RG-1441-043.
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Zeid A. Alothman: conceptualization, methodology, and writing—reviewing and editing; Ahmad Yacine Badjah: methodology and software; Omar M.L. Alharbi: methodology, software, and analysis; Imran Ali: conceptualization, methodology, and writing—reviewing and editing.
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Alothman, Z.A., Badjah, A.Y., Alharbi, O.M. et al. Cobalt doping of titanium oxide nanoparticles for atenolol photodegradation in water. Environ Sci Pollut Res 28, 7423–7430 (2021). https://doi.org/10.1007/s11356-020-11071-w
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DOI: https://doi.org/10.1007/s11356-020-11071-w