Evaluation of the Photocatalytic Activity of a Cordierite-Honeycomb-Supported TiO2 Film with a Liquid–Solid Photoreactor
Articolo
Data di Pubblicazione:
2019
Abstract:
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 SO4 2- was evaluated at different concentrations, showing a slight deactivation only at very high sulfate concentration (>3 g L-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.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
titanium dioxide; photoreactor; cordierite; sulfates; photocatalysis; wastewater
Elenco autori:
Francesco Pellegrino , Nicola De Bellis , Fabrizio Ferraris , Marco Prozzi , Marco Zangirolami , Jasmine R. Petriglieri , Ilaria Schiavi , Alessandra Bianco Prevot , Valter Maurino
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