ZnO nanoparticles were decorated with 5-(4′-carboxyphenyl)-10,15,20-triphenyl porphyrin-zinc (ZnTPPCO2Na) and used for photocatalytic removal of Rhodamine B dye. The morphology, composition, and structure of the resulting ZnTPPCO2Na/ZnO nanocomposite were characterized by SEM, HRTEM, XRD, EDS, UV–vis, and FTIR spectroscopy. The nanocomposite exhibits spherical nanoparticles of diameter 30–100 nm with an extremely thin organic layer on the surface. The nanomaterial exhibited good photocatalytic degradation of Rhodamine B in aqueous solution, far exceeding the performance of pure ZnO nanoparticles. The thinness of the porphyrin layer aids the synergistic combination between the nanomaterials, significantly increasing the removal rate of RhB up to 99.86 % after 120 min under UV light illumination. The photocatalytic mechanism occurs at the interface between ZnTPPCO2Na, ZnO, and dye and mainly involves •O2− and OH•, enhancing charge separation via exciton-coupled charge transfer processes. Despite promising results, the UV-specific activity limits the usability, emphasizing the need for visible light-responsive systems for broader applications in environmental remediation
La, D.D.; Lai Van, D.; Quan, N.T.M.; Nguyen, H.H.; Van Le, H.; Van Tran, C.; Tonezzer, M.; Magna, G.; Paolesse, R.; Biasioli, F.; Di Natale, C.; Nguyen, T.T. (2025). Enhanced photocatalytic performance of ZnO nanoparticles functionalized with 5-(4′-carboxyphenyl)-10,15,20-triphenylporphyrin-zinc. MATERIALS RESEARCH BULLETIN, 185: 113326. doi: 10.1016/j.materresbull.2025.113326 handle: https://hdl.handle.net/10449/88695
Enhanced photocatalytic performance of ZnO nanoparticles functionalized with 5-(4′-carboxyphenyl)-10,15,20-triphenylporphyrin-zinc
Lai Van, D.
;Tonezzer, M.;Biasioli, F.;
2025-01-01
Abstract
ZnO nanoparticles were decorated with 5-(4′-carboxyphenyl)-10,15,20-triphenyl porphyrin-zinc (ZnTPPCO2Na) and used for photocatalytic removal of Rhodamine B dye. The morphology, composition, and structure of the resulting ZnTPPCO2Na/ZnO nanocomposite were characterized by SEM, HRTEM, XRD, EDS, UV–vis, and FTIR spectroscopy. The nanocomposite exhibits spherical nanoparticles of diameter 30–100 nm with an extremely thin organic layer on the surface. The nanomaterial exhibited good photocatalytic degradation of Rhodamine B in aqueous solution, far exceeding the performance of pure ZnO nanoparticles. The thinness of the porphyrin layer aids the synergistic combination between the nanomaterials, significantly increasing the removal rate of RhB up to 99.86 % after 120 min under UV light illumination. The photocatalytic mechanism occurs at the interface between ZnTPPCO2Na, ZnO, and dye and mainly involves •O2− and OH•, enhancing charge separation via exciton-coupled charge transfer processes. Despite promising results, the UV-specific activity limits the usability, emphasizing the need for visible light-responsive systems for broader applications in environmental remediationFile | Dimensione | Formato | |
---|---|---|---|
2025 MRB Bisioli.pdf
solo utenti autorizzati
Tipologia:
Versione editoriale (Publisher’s layout)
Licenza:
Tutti i diritti riservati (All rights reserved)
Dimensione
6.87 MB
Formato
Adobe PDF
|
6.87 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.