Giuseppe Marci - Photocatalytic reduction of CO2 in gas-solid and in liquid-solid regimes

Durée : 00:36:37 -Réalisation : 16 juin 2021 -Mise en ligne : 16 juin 2021
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The increasing CO2 level in theatmosphere is a global environmental problem; therefore, the development of efficientcatalytic processes for CO2 reduction is a challenge. Heterogeneousphoto-catalysis is an attractive technology for this purpose. Literature reportsthat formic acid, methanale, methanol and methane can be formed byphotocatalytic reduction of CO2. In this contribution, it will be showedthat the CO2 reduction products and their distribution depend onseveral factors like the kind of photocatalyst and the presence of water vapor [1].Moreover, the coupling of different photo-catalyst (GaP/TiO2) andthe use of nafion membranes as support of the catalyst can improve thephotocatalytic performances [2,3]. In the case of photo-reduction performed inliquid-solid regime, the temperature and the pressure have a positive effect on the productivity. Finally, aninvestigation into the stability of C3N4 used asphoto-catalyst for CO2 reduction will be discussed [4].



[1] M. Bellardita, A. Di Paola,E. García-López, V. Loddo, G. Marcì, L. Palmisano, Curr. Org. Chem. 17 (2013)2440.

[2] G. Marcì, E.García-López, L. Palmisano, Cat. Comm. 53 (2014) 38.

[3] A. Brunetti, F.R.Pomilla, G. Marcì, E.I. García-López, E. Fontananova, L. Palmisano, G. Barbieri

Appl. Catal. B: Environ. 255(2019) 117779.

[4] F.R. Pomilla,M.A.L.R.M. Cortes, J.W.J. Hamilton, R. Molinari, G. Barbieri, G. Marcì, L.Palmisano, P.K. Sharma, A. Brown, J.A. Byrne, J. Phys. Chem.C 122 (2018) 28727.


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