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Title: Photodegradation and Mineralization of Phenol Using TiO2Coated γ-Al2O3: Effect of Thermic Treatment
Authors: Martínez Gómez, Claudia
Rangel Vázquez, Israel
Zárraga, Ramón
Del Ángel, Gloria
Ruíz Camacho, Beatriz
Tzompantzi, Francisco
Vidal Robles, Esmeralda
Pérez Larios, Alejandro
Keywords: γ-Al2O3-TiO2
Issue Date: Jun-2022
Publisher: MDPI
Citation: Martinez-Gómez, C.; Rangel-Vazquez, I.; Zarraga, R.; del Ángel, G.; Ruíz-Camacho, B.; Tzompantzi, F.; Vidal-Robles, E.; Perez-Larios, A. Photodegradation and Mineralization of Phenol Using TiO2Coated γ-Al2O3: Effect of Thermic Treatment. Processes 2022, 10, 1186. pr1006118
Series/Report no.: Processes;2022, 10(6), 1186
Abstract: It is well-known that γ-Al2O3 possesses large, specific areas and high thermal, chemical, and mechanical resistance. Due to this, it is the most-used support for catalysts, in this case TiO2, as it enables it to achieve better dispersion and improves the activity in catalytic photodegradation reactions. In a previous work, it was observed that the optimal content of TiO2 in γ-Al2O3 was around 15% since the degradation of phenol results were maximized and a synergistic effect was generated by the interaction of both oxides. In addition, an increase in acidity crystal size and the generation of localized, oxygen-vacant, electronic states in the forbidden band of γ-Al2O3, were observed. This study focuses on the effect of the calcination temperature on a γ-Al2O3-TiO2 catalyst (15% w/w of TiO2) and its impact on photocatalytic activity. The catalysts prepared here were characterized by X-ray diffraction, N2 adsorption–desorption, FTIR-pyridine adsorption, MAS-NMR, HRTEM-FFT, UV-vis, and fluorescence spectroscopy.
Description: Artículo
ISSN: 2227-9717
Appears in Collections:3201 Artículos

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