Binder-Free Carbon Nitride Panels for Continuous-Flow Photocatalysis
Gabriel Mark a, menny Shalom a, Venugopalla Rao Battula a, Michael Volokh a, Ayelet Tashakory a, Sanjit Mondal a
a Department of Chemistry, Ben Gurion University, Beer-Sheva, 8410501 Israel
b University of Glasgow School of Chemistry Joseph Black Building Glasgow, G128QQ, UK
Materials for Sustainable Development Conference (MATSUS)
Proceedings of MATSUS Fall 2024 Conference (MATSUSFall24)
#SOLTEC - Solar Technologies for Renewable Fuels and Chemicals: On the Way to Industrial Implementation
Lausanne, Switzerland, 2024 November 12th - 15th
Organizers: Víctor A. de la Peña O'Shea and Miguel García-Tecedor
Oral, Gabriel Mark, presentation 342
DOI: https://doi.org/10.29363/nanoge.matsusfall.2024.342
Publication date: 28th August 2024

"The development of large-scale, binder-free photo-catalyst panels, resembling solar panels, is highly appealing, which,along with efficient light management and easy recycling, offers great simplicity by configuring them in a flow-reactor. Here, we report a facile and scalable method for binder-free flat and porous melon-type polymeric carbon nitride (CN) panels with tunable structural and photophysical properties. The CN panel exhibits good photoactivity in a homemade bench-scale reactor for several important catalytic reactions: the production of hydrogen peroxide in concentrations that meet industrial requirements; biomass-derived 5-hydroxymethyfurfural (HMF) oxidation to 2,5-diformyl-furan (DFF) under visible light, resulting in a high HMFconversion rate of 1185 μmol h^−1 g^−1, achieved in heterogeneous photocatalysis with a DFF yield of 13% after 24 h under continuous-flow conditions (1 mL min^−1); and hydrogen production. The binder-free deposition method and its good photocatalytic activity broaden avenues for CN photocatalyst-based and other semiconductor panels toward multiple energy-related applications."

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