Photocatalysis is considered one of the most promising technologies for applications in the environmental field especially in the abatement of water-soluble organic pollutants. In this field, titanium dioxide nanoparticles have drawn much attention recently; however, the use of this oxide presents some limitation since it allows to obtain high photoresponse and degradation efficiency only under UV light irradiation, that represents the 3 to 4% of the solar radiation, so preventing its environmental large-scale applications under diffuse daylight. In this work the photocatalytic efficiencyoftitanium-based oxides systems containing alkaline earth metals such as barium and strontium, prepared by a simple sol-gel method was investigated, evaluating the degradation of methylene blue as model compound under UV and visible light irradiation. The results were compared with those obtained with Degussa P25 titanium dioxide. The achieved degradation percentage of methylene blue are very promising showing that under visible light irradiation it is possible to obtain a maximum dye removal percentage ~ 50 % higher than that obtained with the Degussa P25.

Improved photocatalytic properties of doped titanium-based nanometric oxides / Scarsella, Marco; Bracciale, Maria P.; De Caprariis, Benedetta; De Filippis, Paolo; Petrullo, Antonietta; Pronti, Lucilla; Santarelli, Maria L.. - In: CHEMICAL ENGINEERING TRANSACTIONS. - ISSN 2283-9216. - 60:(2017), pp. 133-138. [10.3303/CET1760023]

Improved photocatalytic properties of doped titanium-based nanometric oxides

Scarsella, Marco;Bracciale, Maria P.;De Caprariis, Benedetta;De Filippis, Paolo;Petrullo, Antonietta;Pronti, Lucilla;Santarelli, Maria L.
2017

Abstract

Photocatalysis is considered one of the most promising technologies for applications in the environmental field especially in the abatement of water-soluble organic pollutants. In this field, titanium dioxide nanoparticles have drawn much attention recently; however, the use of this oxide presents some limitation since it allows to obtain high photoresponse and degradation efficiency only under UV light irradiation, that represents the 3 to 4% of the solar radiation, so preventing its environmental large-scale applications under diffuse daylight. In this work the photocatalytic efficiencyoftitanium-based oxides systems containing alkaline earth metals such as barium and strontium, prepared by a simple sol-gel method was investigated, evaluating the degradation of methylene blue as model compound under UV and visible light irradiation. The results were compared with those obtained with Degussa P25 titanium dioxide. The achieved degradation percentage of methylene blue are very promising showing that under visible light irradiation it is possible to obtain a maximum dye removal percentage ~ 50 % higher than that obtained with the Degussa P25.
2017
oxides; photocatalytic property; chemical engineering (all)
01 Pubblicazione su rivista::01a Articolo in rivista
Improved photocatalytic properties of doped titanium-based nanometric oxides / Scarsella, Marco; Bracciale, Maria P.; De Caprariis, Benedetta; De Filippis, Paolo; Petrullo, Antonietta; Pronti, Lucilla; Santarelli, Maria L.. - In: CHEMICAL ENGINEERING TRANSACTIONS. - ISSN 2283-9216. - 60:(2017), pp. 133-138. [10.3303/CET1760023]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1019316
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