Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/5400B744-ED13-4C2D-B005-73D8AA634BA8 | - |
| Αναγνωριστικό | https://doi.org/10.1039/d3ma00668a | - |
| Αναγνωριστικό | https://pubs.rsc.org/en/content/articlelanding/2023/ma/d3ma00668a | - |
| Γλώσσα | en | - |
| Μέγεθος | 11 pages | en |
| Τίτλος | A novel magnetic HS−-adsorptive nanocomposite photocatalyst (rGO/CoMn2O4–MgFe2O4) for hydrogen fuel production using H2S feed | en |
| Δημιουργός | Ghanimati Majid | en |
| Δημιουργός | Lashgari Mohsen | en |
| Δημιουργός | Montagnaro Fabio | en |
| Δημιουργός | Binas Vassilios | en |
| Δημιουργός | Konsolakis Michail | en |
| Δημιουργός | Κονσολακης Μιχαηλ | el |
| Δημιουργός | Balsamo Marco | en |
| Εκδότης | Royal Society of Chemistry | en |
| Περίληψη | Synthesis of low-cost, eco-friendly, semiconducting solar-energy materials with excellent photocatalytic activity [high surface area, good reactant adsorption, photon harnessing in the visible region, and low charge recombination] for application in pollutant conversion to hydrogen is of great importance from environmental remediation as well as green energy and fuel production perspectives. In the present work, a magnetic heterojunction of CoMn2O4/MgFe2O4 and reduced graphene oxide (rGO) was synthesized through a combined Hummers’/hydrothermal method. The obtained nanocomposite (rGO/CoMn2O4–MgFe2O4) was employed for photocatalytic conversion of H2S feed into hydrogen fuel. Adsorption studies in the feed solution proved a good capability for the photocatalyst to adsorb HS− reactant from the reaction medium. This effect was ascribed to the presence of the CoMn2O4 component, serving as a strong bisulfide adsorbent. VSM (vibrating sample magnetometry) analysis revealed that the magnetic property of the photocatalyst was due to the MgFe2O4 component. Photocatalytic investigations showed that the addition of rGO to the CoMn2O4/MgFe2O4 nanocomposite not only improves its reactant adsorption capacity, but also increases the photocatalyst surface area, enhances photon absorption, and suppresses the charge (e/h) recombination, which eventually boosts the photocatalyst activity to produce more hydrogen fuel (∼1.5 times). | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by-nc/4.0/ | en |
| Ημερομηνία | 2025-06-02 | - |
| Ημερομηνία Δημοσίευσης | 2023 | - |
| Θεματική Κατηγορία | Photocatalysts | en |
| Θεματική Κατηγορία | TiO2 Photocatalysis | en |
| Θεματική Κατηγορία | CoMn2O4-MgFe2O4 | en |
| Θεματική Κατηγορία | Reduced graphene oxide (rGO) | en |
| Θεματική Κατηγορία | Nanocomposite (rGO/CoMn2O4-MgFe2O4) | en |
| Θεματική Κατηγορία | Hydrogen fuel production | en |
| Βιβλιογραφική Αναφορά | M. Ghanimati, M. Lashgari, F. Montagnaro, V. Binas, M. Konsolakis and M. Balsamo, “A novel magnetic HS−-adsorptive nanocomposite photocatalyst (rGO/CoMn2O4–MgFe2O4) for hydrogen fuel production using H2S feed,” Mater. Adv., vol. 4, no. 21, pp. 5252–5262, Oct. 2023, doi: 10.1039/d3ma00668a. | en |
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