Doping of TiO2 Using Metal Waste (Door Key) to Improve Its Photocatalytic Efficiency in the Mineralization of an Emerging Contaminant in an Aqueous Environment

Juárez Cortázar, Dany Edgar y Torres Torres, José Gilberto y Hernández Ramírez, Aracely y Arévalo Pérez, Juan Carlos y Cervantes Uribe, Adrián y Godavarthi, Srinivas y Espinosa de los Monteros, Alejandra Elvira y Silahua Pavón, Adib Abiu y Cordero García, Adrián (2022) Doping of TiO2 Using Metal Waste (Door Key) to Improve Its Photocatalytic Efficiency in the Mineralization of an Emerging Contaminant in an Aqueous Environment. Water, 14 (9). pp. 1-14. ISSN 2073-4441

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URL o página oficial: http://doi.org/10.3390/w14091389

Resumen

Photocatalysis is an effective advanced oxidation process to mineralize recalcitrant contaminants in aqueous media. TiO2 is the most used photocatalyst in this type of process. To improve the deficiencies of this material, one of the most used strategies has been to dope TiO2 with metallic ions. Chemical reagents are often used as dopant precursors. However, due to the depletion of natural resources, in this work it was proposed to substitute chemical reagents and instead use a metallic residue (door key) as a doping precursor. The materials were synthesized using the sol–gel method and calcined at 400 °C to obtain the crystal structure of anatase. The characterization of the materials was carried out using X-ray diffraction (XRD), transmission electron microscopy (TEM), diffuse reflectance spectroscopy (DRS), scanning electron microscopy–energy-dispersive X-ray analysis (SEM-EDX) methods X-ray photoelectron spectroscopy (XPS), and inductively coupled plasma optical emission spectroscopy (ICP-OES). The results obtained indicate that Cu+/Cu2+ and Zn2+ ions coexist in the support, which modifies the physicochemical properties of TiO2 and improves its photocatalytic efficiency. The synergistic effect of the dopants in TiO2 allowed the mineralization of diclofenac in an aqueous medium when T-DK (1.0) was used as photocatalyst and simulated solar radiation as an activation source.

Tipo de elemento: Article
Palabras claves no controlados: contaminante emergente, fotocatálisis, dopado con TiO2, residuos metálicos desechados, sol-gel
Materias: Q Ciencia > QD Química
Divisiones: Ciencias Químicas
Usuario depositante: Editor Repositorio
Creadores:
CreadorEmailORCID
Juárez Cortázar, Dany EdgarNO ESPECIFICADONO ESPECIFICADO
Torres Torres, José GilbertoNO ESPECIFICADONO ESPECIFICADO
Hernández Ramírez, Aracelyaracely.hernandezrm@uanl.edu.mxNO ESPECIFICADO
Arévalo Pérez, Juan CarlosNO ESPECIFICADONO ESPECIFICADO
Cervantes Uribe, AdriánNO ESPECIFICADONO ESPECIFICADO
Godavarthi, SrinivasNO ESPECIFICADONO ESPECIFICADO
Espinosa de los Monteros, Alejandra ElviraNO ESPECIFICADONO ESPECIFICADO
Silahua Pavón, Adib AbiuNO ESPECIFICADONO ESPECIFICADO
Cordero García, AdriánNO ESPECIFICADONO ESPECIFICADO
Fecha del depósito: 01 Jul 2022 20:19
Última modificación: 06 Mar 2024 16:00
URI: http://eprints.uanl.mx/id/eprint/23516

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