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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Tokarský, Jonáš
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023Graphitic C3N4 and Ti3C2 nanocomposites for the enhanced photocatalytic degradation of organic compounds and the evolution of hydrogen under visible irradiationcitations
- 2014Photocatalytical nanocomposites: a reviewcitations
- 2014Structural characteristics of cordierite/steatite ceramics sintered from mixtures containing pore-forming organovermiculitecitations
- 2014Electrically conductive and optically transparent polyaniline/montmorillonite nanocomposite thin filmscitations
- 2014Antibacterial kaolinite/urea/chlorhexidine nanocomposites: Experiment and molecular modellingcitations
- 2013Role of vermiculite and zirconium-vermiculite on the formation of zircon-cordierite nanocompositescitations
- 2011Preparation and characterization of photoactive composite kaolinite/TiO2citations
- 2010Design of Nanocomposite Materials Using Molecular Modeling ; Design nanokompositních materiálů s využitím molekulárního modelování
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article
Graphitic C3N4 and Ti3C2 nanocomposites for the enhanced photocatalytic degradation of organic compounds and the evolution of hydrogen under visible irradiation
Abstract
Graphitic carbon nitride (g-C3N4) and Ti3C2 nanocomposites were formed in aqueous dispersions under ultrasound, by the calcination of the mixtures of solid dicyandiamide (DCDA) and Ti3C2, and of dissolved DCDA and Ti3C2 in an aqueous phase. A heterojunction between g-C3N4 and Ti3C2, based on mutual chemical bonds, was created in all the synthetized materials as observed by X-ray photoelectron spectroscopy and also indicated by the decrease of band bap energies from 2.71 eV to 2.59 eV. The transfer of photoexcited electrons from g C3N4 to Ti3C2 was documented by photoluminescence spectroscopy.Molecular modelling confirmed an observation provided by scanning electron microscopy that Ti3C2 was not equally dispersed in g-C3N4 but formed separated agglomerates.It was calculated that the interactions of g-C3N4/g-C3N4 and Ti3C2/Ti3C2 layers were stronger than those of g-C3N4/Ti3C2, and the interactions of Ti3C2 functionalized with oxygen were stronger than those of Ti3C2 functionalized with fluorine.The g-C3N4/Ti3C2 nanocomposites were further tested for photocatalytic oxidation reactions, such as the degradation of phenol and ofloxacin, and for reduction reactions, such as the evolution of hydrogen. Ofloxacin was degraded more efficiently (max. 79.4 %) than phenol (max. 20.1 %) during 120 minutes. The highest hydrogen yield was 76.9 umol after 4 h of irradiation. All the photocatalytic experiments were performed under visible irradiation and confirmed the electron transfer from g-C3N4 to Ti3C2 enhancing the photocatalytic activity of g-C3N4.