Anatase (TiO?) and multiwalled carbon nanotubes bearing polyethylenimine (PEI) anchored on their surface were hybridized in different proportions according to a sol-gel method. The resulting nanocomposites (TiO?@PEI-MWCNTs), characterized by BET, XRD, XPS, SEM, and UV techniques, were found efficient catalysts for CO? photoreduction into formic and acetic acids in water suspension and under visible light irradiation. PEI-grafted nanotubes co-catalysts are believed to act as CO? activators by forming a carbamate intermediate allowing to accomplish the first example in the literature of polyamines/nanotubes/TiO? mediated CO? photoreduction to carboxylic acids
TiO2@PEI-Grafted-MWCNTs Hybrids Nanocomposites Catalysts for CO2 Photoreduction
Fusco Caterina;Casiello Michele;Catucci Lucia;Comparelli Roberto;Falcicchio Aurelia;Fracassi Francesco;Margiotta Valerio;Moliterni Anna;Petronella Francesca;D'Accolti Lucia;Nacci Angelo;Nacci Angelo
2018
Abstract
Anatase (TiO?) and multiwalled carbon nanotubes bearing polyethylenimine (PEI) anchored on their surface were hybridized in different proportions according to a sol-gel method. The resulting nanocomposites (TiO?@PEI-MWCNTs), characterized by BET, XRD, XPS, SEM, and UV techniques, were found efficient catalysts for CO? photoreduction into formic and acetic acids in water suspension and under visible light irradiation. PEI-grafted nanotubes co-catalysts are believed to act as CO? activators by forming a carbamate intermediate allowing to accomplish the first example in the literature of polyamines/nanotubes/TiO? mediated CO? photoreduction to carboxylic acids| File | Dimensione | Formato | |
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Descrizione: TiO?@PEI-Grafted-MWCNTs Hybrids Nanocomposites Catalysts for CO? Photoreduction
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Descrizione: TiO?@PEI-Grafted-MWCNTs Hybrids Nanocomposites Catalysts for CO? Photoreduction
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