Evaluation of the Photocatalytic Activity of a Cordierite-Honeycomb-Supported TiO2 Film with a Liquid–Solid Photoreactor
| Autor: | Fabrizio Ferraris, Valter Maurino, Francesco Pellegrino, Jasmine Rita Petriglieri, Alessandra Bianco-Prevot, Ilaria Schiavi, Nicola De Bellis, Marco Zangirolami, Marco Prozzi |
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| Rok vydání: | 2019 |
| Předmět: |
Anatase
Materials science Pharmaceutical Science Nanoparticle 02 engineering and technology 010402 general chemistry 01 natural sciences Analytical Chemistry Catalysis Suspension (chemistry) chemistry.chemical_compound Drug Discovery Phenol Physical and Theoretical Chemistry wastewater cordierite sulfates titanium dioxide photoreactor photocatalysis Organic Chemistry 021001 nanoscience & nanotechnology 6. Clean water 0104 chemical sciences Chemical engineering Wastewater chemistry Chemistry (miscellaneous) Titanium dioxide Photocatalysis Molecular Medicine 0210 nano-technology |
| Zdroj: | Molecules Volume 24 Issue 24 |
| ISSN: | 1420-3049 |
| DOI: | 10.3390/molecules24244499 |
| Popis: | Anatase nanoparticles in suspension have demonstrated high photoactivity that can be exploited for pollutant removal in water phases. The main drawback of this system is the difficulty of recovering (and eventually reusing) the nanoparticles after their use, and the possible interference of inorganic salts (e.g., sulfates) that can reduce the performance of the photocatalyst. The present work describes the development of a cordierite-honeycomb-supported TiO2 film to eliminate the problems of catalyst recovery. The catalyst was then tested against phenol in the presence of increasing concentrations of sulfates in a specially developed recirculating modular photoreactor, able to accommodate the supported catalyst and scalable for application at industrial level. The effect of SO42&minus was evaluated at different concentrations, showing a slight deactivation only at very high sulfate concentration (&ge 3 g L&minus 1). Lastly, in the framework of the EU project Project Ô the catalyst was tested in the treatment of real wastewater from a textile company containing a relevant concentration of sulfates, highlighting the stability of the photocatalyst. |
| Databáze: | OpenAIRE |
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