TiO<sub>2</sub>-La<sub>2</sub>O<sub>3</sub> as Photocatalysts in the Degradation of Naproxen
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 s...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Inorganics |
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| Online Access: | https://www.mdpi.com/2304-6740/10/5/67 |
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| author | Adriana Marizcal-Barba Isaias Limón-Rocha Arturo Barrera José Eduardo Casillas O. A. González-Vargas José Luis Rico Claudia Martinez-Gómez Alejandro Pérez-Larios |
| author_facet | Adriana Marizcal-Barba Isaias Limón-Rocha Arturo Barrera José Eduardo Casillas O. A. González-Vargas José Luis Rico Claudia Martinez-Gómez Alejandro Pérez-Larios |
| author_sort | Adriana Marizcal-Barba |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T03:41:20Z |
| format | Article |
| id | doaj.art-421a9c02c9894ea698cabcf993de333b |
| institution | Directory Open Access Journal |
| issn | 2304-6740 |
| language | English |
| last_indexed | 2024-03-10T03:41:20Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Inorganics |
| spelling | doaj.art-421a9c02c9894ea698cabcf993de333b2023-11-23T11:30:57ZengMDPI AGInorganics2304-67402022-05-011056710.3390/inorganics10050067TiO<sub>2</sub>-La<sub>2</sub>O<sub>3</sub> as Photocatalysts in the Degradation of NaproxenAdriana Marizcal-Barba0Isaias Limón-Rocha1Arturo Barrera2José Eduardo Casillas3O. A. González-Vargas4José Luis Rico5Claudia Martinez-Gómez6Alejandro Pérez-Larios7Materials, Water and Energy Research Laboratory, Department of Engineering, Los Altos University Center, University of Guadalajara, Tepatitlán de Morelos 47600, MexicoMaterials, Water and Energy Research Laboratory, Department of Engineering, Los Altos University Center, University of Guadalajara, Tepatitlán de Morelos 47600, MexicoLaboratory of Catalytic Nanomaterials, Department of Basic Sciences, La Ciénega University Center, University of Guadalajara, Ocotlán 47820, MexicoLaboratory of Catalytic Nanomaterials, Department of Basic Sciences, La Ciénega University Center, University of Guadalajara, Ocotlán 47820, MexicoControl and Automation Engineering Department, School of Mechanical and Electrical Engineering-Zacatenco, National Polytechnic Institute, Ciudad de México 07738, MexicoCatalysis Laboratory, Faculty of Chemical Engineering, Michoacan University of San Nicolás de Hidalgo, Morelia 58060, MexicoDepartment of Chemistry, Division of Natural and Exact Sciences, Campus Guanajuato, University of Guanajuato. Noria Alta S/N, Col. Noria Alta, Guanajuato 36050, MexicoMaterials, Water and Energy Research Laboratory, Department of Engineering, Los Altos University Center, University of Guadalajara, Tepatitlán de Morelos 47600, MexicoThe 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.https://www.mdpi.com/2304-6740/10/5/67naproxendegradationTi-La mixed oxidesphotocatalytic activity |
| spellingShingle | Adriana Marizcal-Barba Isaias Limón-Rocha Arturo Barrera José Eduardo Casillas O. A. González-Vargas José Luis Rico Claudia Martinez-Gómez Alejandro Pérez-Larios TiO<sub>2</sub>-La<sub>2</sub>O<sub>3</sub> as Photocatalysts in the Degradation of Naproxen Inorganics naproxen degradation Ti-La mixed oxides photocatalytic activity |
| title | TiO<sub>2</sub>-La<sub>2</sub>O<sub>3</sub> as Photocatalysts in the Degradation of Naproxen |
| title_full | TiO<sub>2</sub>-La<sub>2</sub>O<sub>3</sub> as Photocatalysts in the Degradation of Naproxen |
| title_fullStr | TiO<sub>2</sub>-La<sub>2</sub>O<sub>3</sub> as Photocatalysts in the Degradation of Naproxen |
| title_full_unstemmed | TiO<sub>2</sub>-La<sub>2</sub>O<sub>3</sub> as Photocatalysts in the Degradation of Naproxen |
| title_short | TiO<sub>2</sub>-La<sub>2</sub>O<sub>3</sub> as Photocatalysts in the Degradation of Naproxen |
| title_sort | tio sub 2 sub la sub 2 sub o sub 3 sub as photocatalysts in the degradation of naproxen |
| topic | naproxen degradation Ti-La mixed oxides photocatalytic activity |
| url | https://www.mdpi.com/2304-6740/10/5/67 |
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