Characteristics and Behavior of Di erent Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes
Metadatos
Mostrar el registro completo del ítemAutor
Rivera Utrilla, José; López Ramón, María Victoria; Sánchez Polo, Manuel; Ángel Álvarez, Miguel; Velo Gala, InmaculadaEditorial
Mdpi
Materia
Catalysts Photooxidation Ozonation Water pollutants UV radiation Solar radiation
Fecha
2020-12-19Referencia bibliográfica
Rivera-Utrilla, J., López-Ramón, M. V., Sánchez-Polo, M., Álvarez, M. Á., & Velo-Gala, I. (2020). Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes. Catalysts, 10(12), 1485. [doi:10.3390/catal10121485]
Patrocinador
Spanish Ministry of Economy, Industry and Competitiveness CTQ2016-80978-C2-1-R; European Union (EU) CTQ2016-80978-C2-1-R; Junta de Andalucía P18-RT-4193Resumen
The objective of this study was to summarize the results obtained in a wide research
project carried out for more than 15 years on the catalytic activity of di erent catalysts (activated
carbon, metal–carbon xerogels/aerogels, iron-doped silica xerogels, ruthenium metal complexes,
reduced graphene oxide-metal oxide composites, and zeolites) in the photooxidation (by using UV
or solar radiation) and ozonation of water pollutants, including herbicides, naphthalenesulfonic
acids, sodium para-chlorobenzoate, nitroimidazoles, tetracyclines, parabens, sulfamethazine,
sodium diatrizoate, cytarabine, and surfactants. All catalysts were synthesized and then texturally,
chemically, and electronically characterized using numerous experimental techniques, including
N2 and CO2 adsorption, mercury porosimetry, thermogravimetric analysis, X-ray di raction,
Fourier-transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy,
di use reflectance UV–vis spectroscopy, photoluminescence analysis, and transmission electron
microscopy. The behavior of these materials as photocatalysts and ozonation catalysts was related
to their characteristics, and the catalytic mechanisms in these advanced oxidation processes were
explored. Investigations were conducted into the e ects on pollutant degradation, total organic
carbon reduction, and water toxicity of operational variables and the presence of di erent chemical
species in ultrapure, surface, ground, and wastewaters. Finally, a review is provided of the most
recent and relevant published studies on photocatalysis and catalyzed ozonation in water treatments
using similar catalysts to those examined in our project.