TY - JOUR
T1 - TiO2-La2O3 as Photocatalysts in the Degradation of Naproxen
AU - Marizcal-Barba, Adriana
AU - Limón-Rocha, Isaias
AU - Barrera, Arturo
AU - Casillas, José Eduardo
AU - González-Vargas, O. A.
AU - Rico, José Luis
AU - Martinez-Gómez, Claudia
AU - Pérez-Larios, Alejandro
N1 - Publisher Copyright:
© 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/5
Y1 - 2022/5
N2 - The indiscriminate use of naproxen as an anti-inflammatory has been the leading cause of pollution in sewage effluents. Conversely, titanium dioxide is one of the most promising photocatalyst for the degradation of pollutants. Ti-La mixed oxides containing 0, 1, 3, 5, and 10 wt.% of lanthanum were synthetized by sol-gel and tested as photocatalysts in the degradation of naproxen (NPX). The materials were further characterized by X-ray diffraction (XRD), nitrogen physisorption (BET), scanning electron microscopy (SEM), UV-Vis and Fourier-transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The XRD patterns resembled that of anatase titania. The Eg values, determined from the UV-Vis spectra, vary from 2.07 to 3.2 eV corresponded to pure titania. The photocatalytic activity of these materials showed a degradation of naproxen from 93.6 to 99.8 wt.% after 4 h under UV irradiation.
AB - The indiscriminate use of naproxen as an anti-inflammatory has been the leading cause of pollution in sewage effluents. Conversely, titanium dioxide is one of the most promising photocatalyst for the degradation of pollutants. Ti-La mixed oxides containing 0, 1, 3, 5, and 10 wt.% of lanthanum were synthetized by sol-gel and tested as photocatalysts in the degradation of naproxen (NPX). The materials were further characterized by X-ray diffraction (XRD), nitrogen physisorption (BET), scanning electron microscopy (SEM), UV-Vis and Fourier-transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The XRD patterns resembled that of anatase titania. The Eg values, determined from the UV-Vis spectra, vary from 2.07 to 3.2 eV corresponded to pure titania. The photocatalytic activity of these materials showed a degradation of naproxen from 93.6 to 99.8 wt.% after 4 h under UV irradiation.
KW - Degradation
KW - Naproxen
KW - Photocatalytic activity
KW - Ti-La mixed oxides
UR - http://www.scopus.com/inward/record.url?scp=85131073764&partnerID=8YFLogxK
U2 - 10.3390/inorganics10050067
DO - 10.3390/inorganics10050067
M3 - Artículo
AN - SCOPUS:85131073764
SN - 2304-6740
VL - 10
JO - Inorganics
JF - Inorganics
IS - 5
M1 - 67
ER -