In this study, various C3N4 samples were
prepared and characterized. CO2 photoreduction was carried out by using C3N4 as
powder and coated on glass support in a batch reactor or embedded in a Nafion
membrane in a continuous reacto

A Brunetti

EI García-López

FR Pomilla

G Barbieri

G Marcì

L Palmisano

R Molinari

English

Archivio istituzionale della ricerca - Università di Palermo

I    VIII Workshop Nazionale AICIng  27-29 Giugno 2019    “ADVANCED MATERIALS FOR SUSTAINABLE ENERGY,  ENVIRONMENT AND SENSING APPLICATIONS”  ATTI DEL CONVEGNO   IX  17:30   20:00                                  Cena Sociale tipica Eoliana                Sabato 29 Giugno 2019  SESSIONE 5: Chairperson  Piero Mastrorilli  09:30 O18 “BaCe0.65Zr0.20Y0.15O3-δ-Ce0.85Gd0.15O2-δ composite: a MIEC ceramic membrane for H2 purification”  Cecilia Mortalò, E. Rebollo, S. Escolástico, J. M. Serra, C. Leonelli, M. Fabrizio 09:45 O19 “Electrospinning and photo-crosslinking of rubber nanofiber membranes” Alessandra Vitale, Roberta Bongiovanni 10:00 O20 “Evaluation of Cardiac Fibroblast Activation via Traction Force Microscopy” Pamela Mozetic, Andrea Zancla, Monica Orsini, Marcella Trombetta, Giancarlo Forte, Alberto Rainer 10:15 O21 “Bio-based composites from natural pectins and hemp fibers as novel carriers of green pesticides for agricultural applications” Gianluca Viscusi, Giuliana Gorrasi 10:30 O22 “Nanocellulose: an innovative eco-sustainable resource” Laura Riva, Nadia Pastori, Andrea Fiorati, Massimo Cametti, Alessandro Sacchetti, Carlo Punta 10:45 O23 “Poisoning tolerance of platinum-group-metal-free catalysts for the oxygen reduction reaction” Valerio C.A. Ficca, Barbara Mecheri, Carlo Santoro, Alessandra D’Epifanio, Silvia Licoccia, Plamen Atanassov   SESSIONE 6: Chairperson  Fabio Ganazzoli  11:30 O24 “Evaluation of NiO-SCCNTs core-shell structure; new insight into shell thickness effect on gas sensing properties” Kaveh Movlaee, Giovanni Neri 11:45 O25 “In vitro antiproliferative and antibacterial activities of sol-gel materials containing different amount of CGA” Elisabetta Tranquillo, Federico Barrino, Michelina Catauro 12:00 O26 “C3N4 for CO2 photoreduction: catalyst performance and stability in batch and continuous reactor” Francesca Rita Pomilla, Giuseppe Marcì, Elisa Isabel Garcia Lopez, Giuseppe Barbieri, Adele Brunetti,  Raffaele Molinari, Leonardo Palmisano 12:15 O27 “β-glucosidase immobilization into mesoporous silica nanoparticles: the effect of pore size and morphology” Aniello Costantini, Valeria Califano, Brigida Silvestri, Virginia Venezia, Filomena Sannino, Antonio Aronne 12:30  Premiazioni 12:45  e Chiusura dei lavori  Lipari, 27-29 giugno 2019  VIII Workshop Nazionale AICIng 26  C3N4 for CO2 photoreduction: catalyst performance and stability in batch and continuous reactor  Francesca Rita Pomilla,1,2 Giuseppe Marcì,1 Elisa Isabel Garcia Lopez,3 Giuseppe Barbieri,4 Adele Brunetti, 4 Raffaele Molinari,2 Leonardo Palmisano1  1 “Schiavello-Grillone” Photocatalysis Group. Department of Engineering, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy 2 Department of Environmental and Chemical Engineering, University of Calabria, Via Pietro Bucci, Rende CS 87036, Italy 3 Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, 90128 Palermo, Italy 4 Institute on Membrane Technology (ITM-CNR), National Research Council, c/o University of Calabria, Cubo 17C, Via Pietro Bucci, Rende CS 87036, Italy Email: francescaritapomilla@gmail.com  The increase of CO2 is causing the climate change promoting the global warming.[1] Photocatalysis is an eco-friendly process where a semiconductor under irradiation can transform CO2 to fuel. Recently, C3N4 was identified as a promising photocatalyst for CO2 photoreduction.[2] In this study, various C3N4 samples were prepared and characterized. CO2 photoreduction was carried out by using C3N4 as powder and coated on glass support in a batch reactor or embedded in a Nafion membrane in a continuous reactor. In all cases, aliquots of the reaction mixture at different irradiation times were analysed by GC. CO2 photoreduction occurred giving CO, CH4, MeOH, EtOH and HCOH, the main products depending on the experimental conditions. In particular, the reactor containing C3N4 as powder produced CH4 as the main product.[3] The glass supported photocatalyst, instead, produced only CO, but a photocorrosion of C3N4 occurred during the photocatalytic test.[4] The best C3N4 performances were obtained in the continuous membrane reactor.[5] These results indicate that the efficiency of C3N4 for CO2 photoreduction strongly depends on the type of reactor and the experimental conditions adopted.  References [1] M. R. Allen, D. J. Frame, C. Huntingford, C. D. Jones, J. A. Lowe, M. Meinshausen, N. Meinshausen. Nature 2009, 458, 1163-1166. [2] J. Wen, J. Xie, X. Chen, X. Li. Appl. Surf. Sci., 2017, 39, 72-123. [3] F. R. Pomilla, R. Molinari, E. I. García-López, G. Marcì, L. Palmisano. Research and Technologies for Society and Industry (IEEE-RTSI), ISBN: CFP18C29-ART, Part Number: 978-1-5386-6286-3, 2018, 478-483  [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, 2018, 122, 28727-28738. [5] F. R. Pomilla, A. Brunetti, G. Marcì, E. I. Garcìa-Lòpez, E. Fontananova, L. Palmisano, G. Barbieri. ACS Sustain. Chem. Eng., 2018, 6(7), 8743-8753  

C3N4 for CO2 photoreduction: catalyst performance and stability in batch and continuous reactor

https://iris.unipa.it/bitstream/10447/363455/2/ATTI%20VIII%20Workshop%20Nazionale%20AICIng%2027-29%20giugno%202019%20Lipari.pdf

C3N4 for CO2 photoreduction: catalyst performance and stability in batch and continuous reactor

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Archivio istituzionale della ricerca - Università di Palermo