Cobalt doping of titanium oxide nanoparticles for atenolol photodegradation in water.
Environ Sci Pollut Res Int
; 28(6): 7423-7430, 2021 Feb.
Article
em En
| MEDLINE
| ID: mdl-33030688
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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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dopagem Esportivo
/
Nanopartículas
Idioma:
En
Revista:
Environ Sci Pollut Res Int
Ano de publicação:
2021
Tipo de documento:
Article