TiO2 and TiO2-Carbon Hybrid Photocatalysts for Diuron Removal from Water
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Título: | TiO2 and TiO2-Carbon Hybrid Photocatalysts for Diuron Removal from Water |
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Autor/es: | Amorós-Pérez, Ana | Lillo-Rodenas, Maria Angeles | Román-Martínez, M. Carmen | García-Muñoz, Patricia | Keller, Nicolas |
Grupo/s de investigación o GITE: | Materiales Carbonosos y Medio Ambiente |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Photocatalysis | TiO2 | Activated carbon | Diuron | Solar chamber |
Área/s de conocimiento: | Química Inorgánica |
Fecha de publicación: | 1-abr-2021 |
Editor: | MDPI |
Cita bibliográfica: | Amorós-Pérez A, Lillo-Ródenas MÁ, Román-Martínez MdC, García-Muñoz P, Keller N. TiO2 and TiO2-Carbon Hybrid Photocatalysts for Diuron Removal from Water. Catalysts. 2021; 11(4):457. https://doi.org/10.3390/catal11040457 |
Resumen: | TiO2 and TiO2-activated carbon (AC) photocatalysts have been prepared (by sol-gel synthesis), characterized, and tested in the removal of diuron from water under simulated solar light. The preparation variables of the two series of catalysts are: (i) heat-treatment temperature of bare TiO2 (350, 400, 450 and 500 °C) and (ii) activated carbon content (0.5, 1, 5, and 10 wt.%) in TiO2-AC samples heat-treated at 350 °C. The activated carbon was previously prepared by hydrothermal carbonization of saccharose and has spherical shape. The heat-treatment temperature does not determine the efficiency of TiO2 for diuron photocatalytic degradation but clearly influences the diuron adsorption capacity. The capacity of TiO2-AC samples for diuron removal increases with the carbon content and it is the result of combined diuron adsorption and photodegradation. Thus, the sample with highest carbon content (10 wt.% nominal) leads to the highest diuron removal. The TiO2-AC photocatalysts have proved to be capable of degrading diuron previously adsorbed in dark conditions, which allows their regeneration. |
Patrocinador/es: | This research was funded by the Spanish Ministry of Science, Innovation and Universities, MICIU, and Fondo Europeo de Desarrollo Regional, FEDER, (RTI2018-095291-B-I00), by Generalitat Valenciana and FEDER (GV/FEDER (PROMETEO/2018/076)) and by the University of Alicante (VIGROB-136). |
URI: | http://hdl.handle.net/10045/114053 |
ISSN: | 2073-4344 |
DOI: | 10.3390/catal11040457 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/catal11040457 |
Aparece en las colecciones: | INV - MCMA - Artículos de Revistas |
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