Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes
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 different catalysts (activated carbon, metal–carbon xerogels/aerogels, iron-doped silica xerogels, ruthenium metal complexes, reduced graphene...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/10/12/1485 |
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| author | José Rivera-Utrilla María Victoria López-Ramón Manuel Sánchez-Polo Miguel Ángel Álvarez Inmaculada Velo-Gala |
| author_facet | José Rivera-Utrilla María Victoria López-Ramón Manuel Sánchez-Polo Miguel Ángel Álvarez Inmaculada Velo-Gala |
| author_sort | José Rivera-Utrilla |
| collection | DOAJ |
| description | 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 different 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 N<sub>2</sub> and CO<sub>2</sub> adsorption, mercury porosimetry, thermogravimetric analysis, X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, diffuse 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 effects on pollutant degradation, total organic carbon reduction, and water toxicity of operational variables and the presence of different 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. |
| first_indexed | 2024-03-10T13:55:07Z |
| format | Article |
| id | doaj.art-52bd477982e549b89212286d722b9446 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T13:55:07Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-52bd477982e549b89212286d722b94462023-11-21T01:42:40ZengMDPI AGCatalysts2073-43442020-12-011012148510.3390/catal10121485Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation ProcessesJosé Rivera-Utrilla0María Victoria López-Ramón1Manuel Sánchez-Polo2Miguel Ángel Álvarez3Inmaculada Velo-Gala4Departament of Inorganic Chemistry, Faculty of Science, University of Granada, 18071 Granada, SpainDepartament of Inorganic and Organic Chemistry, University of Jaén, 23071 Jaén, SpainDepartament of Inorganic Chemistry, Faculty of Science, University of Granada, 18071 Granada, SpainDepartament of Inorganic and Organic Chemistry, University of Jaén, 23071 Jaén, SpainLaboratory of Separation and Reaction Engineering-Laboratory of Catalysis and Materials (LSRE-LCM), Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias s/n, 4200-465 Porto, PortugalThe 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 different 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 N<sub>2</sub> and CO<sub>2</sub> adsorption, mercury porosimetry, thermogravimetric analysis, X-ray diffraction, Fourier-transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, diffuse 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 effects on pollutant degradation, total organic carbon reduction, and water toxicity of operational variables and the presence of different 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.https://www.mdpi.com/2073-4344/10/12/1485catalystsphotooxidationozonationwater pollutantsUV radiationsolar radiation |
| spellingShingle | José Rivera-Utrilla María Victoria López-Ramón Manuel Sánchez-Polo Miguel Ángel Álvarez Inmaculada Velo-Gala Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes Catalysts catalysts photooxidation ozonation water pollutants UV radiation solar radiation |
| title | Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes |
| title_full | Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes |
| title_fullStr | Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes |
| title_full_unstemmed | Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes |
| title_short | Characteristics and Behavior of Different Catalysts Used for Water Decontamination in Photooxidation and Ozonation Processes |
| title_sort | characteristics and behavior of different catalysts used for water decontamination in photooxidation and ozonation processes |
| topic | catalysts photooxidation ozonation water pollutants UV radiation solar radiation |
| url | https://www.mdpi.com/2073-4344/10/12/1485 |
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