Nitrogen oxides (NO, NO2) and volatile organic compounds (VOCs) are serious primary air pollutants responsible for acid rains and smog, respectively. TiO2 is a well-known photocatalyst for their abatement due to its excellent photocatalytic performance in UV light range. By modifying TiO2 lattice, it has been enabled a high visible light response. In this work, cerium was employed as a dopant in different weight ratios (0-1.0 wt.% Ce-TiO2), and all the catalysts were synthesized by an aqueous-based sol-gel method followed by an unconventional drying procedure. The Ce0.8-TiO2 catalyst showed the highest degradation efficiency for both NOx (26±1.%) and ethanol degradation (23±1%) under visible light irradiation, 2.8 times and 1.5 times higher than TiO2 activity.

Spray dried Cerium doped TiO2: photocatalytic activity for NOx and Ethanol abatement by visible light irradiation / M. Frias Ordonez, M.G. Alalm, D.C. Boffito, G. Cerrato, A. Giordana, E. Falletta, C.L. Bianchi. ((Intervento presentato al 11. convegno European Conference on Solar Chemistry and Photocatalysis: Environmental Applications (SPEA) tenutosi a Turin : 6-10 giugno nel 2022.

Spray dried Cerium doped TiO2: photocatalytic activity for NOx and Ethanol abatement by visible light irradiation

M. Frias Ordonez;E. Falletta;C.L. Bianchi
2022

Abstract

Nitrogen oxides (NO, NO2) and volatile organic compounds (VOCs) are serious primary air pollutants responsible for acid rains and smog, respectively. TiO2 is a well-known photocatalyst for their abatement due to its excellent photocatalytic performance in UV light range. By modifying TiO2 lattice, it has been enabled a high visible light response. In this work, cerium was employed as a dopant in different weight ratios (0-1.0 wt.% Ce-TiO2), and all the catalysts were synthesized by an aqueous-based sol-gel method followed by an unconventional drying procedure. The Ce0.8-TiO2 catalyst showed the highest degradation efficiency for both NOx (26±1.%) and ethanol degradation (23±1%) under visible light irradiation, 2.8 times and 1.5 times higher than TiO2 activity.
Cerium-doped TiO2; nitrogen oxides; ethanol; photocatalysis; spray drying
Settore CHIM/04 - Chimica Industriale
Università degli Studi di Torino
Spray dried Cerium doped TiO2: photocatalytic activity for NOx and Ethanol abatement by visible light irradiation / M. Frias Ordonez, M.G. Alalm, D.C. Boffito, G. Cerrato, A. Giordana, E. Falletta, C.L. Bianchi. ((Intervento presentato al 11. convegno European Conference on Solar Chemistry and Photocatalysis: Environmental Applications (SPEA) tenutosi a Turin : 6-10 giugno nel 2022.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/936407
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