http://www.cnr.it/ontology/cnr/individuo/prodotto/ID273198

Photodegradation of Nalidixic Acid assisted by TiO2 nanorods/Ag nanoparticles based catalyst (Articolo in rivista)

Type

Label

Photodegradation of Nalidixic Acid assisted by TiO2 nanorods/Ag nanoparticles based catalyst (Articolo in rivista) (literal)

Anno

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

Alternative label

1-2) Petronella F., 2-3) Diomede S., 1-2) Fanizza E., 3) Mascolo G., 4) Sibilliano T., 1-2) Agostiano A., 1) Curri L., 3) Comparelli R. (2013)
Photodegradation of Nalidixic Acid assisted by TiO2 nanorods/Ag nanoparticles based catalyst
in Chemosphere
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

1-2) Petronella F., 2-3) Diomede S., 1-2) Fanizza E., 3) Mascolo G., 4) Sibilliano T., 1-2) Agostiano A., 1) Curri L., 3) Comparelli R. (literal)

Pagina inizio

Pagina fine

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Rivista

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1) CNR-IPCF, Istituto per i Processi Chimici e Fisici, Sez. Bari, c/o Dip. Chimica Via Orabona 4, 70126 Bari, Italy 2) Università degli Studi di Bari, Dip. Chimica, Via Orabona 4, 70126 Bari, Italy 3) CNR-IRSA, Istituto di Ricerca sulle Acque, Via F. De Blasio 5, 70123 Bari, Italy 4) CNR-IC, Istituto di Cristallografia, via Amendola 122/O, 70126 Bari, Italy (literal)

Titolo

Photodegradation of Nalidixic Acid assisted by TiO2 nanorods/Ag nanoparticles based catalyst (literal)

Abstract

Two different nanosized TiO2-based catalysts supported onto glass with tailored photocatalytic properties upon irradiation by UV light were successfully employed for the degradation of nalidixid acid, a widely diffused antibacterial agent of environmental relevance known to be non-biodegradable. Anatase rod-like TiO2 nanocrystals (TiO2NRs) and a semiconductor oxide-noble metal nanocomposite TiO2 NRs/ Ag nanoparticles (NPs), synthesized by colloidal chemistry routes, were cast onto glass slide and employed as photocatalysts. A commercially available catalyst (TiO2 P25), also immobilized onto a glass slide, was used as a reference material. It was found that both TiO2 NRs/Ag NPs composite and TiO2 NRs demonstrated a photocatalytic efficiency significantly higher than the reference TiO2 P25. Specifically, TiO2 NRs/Ag NPs showed a photoactivity in nalidixic acid degradation 14 times higher than TiO2 P25 and 4 times higher than bare TiO2 NRs in the first 60 min of reaction. Several by-products were identified by HPLC-MS along the nalidixic acid degradation, thus getting useful insight on the degradation pathway. All the identified by-products resulted completely removed after 6 h of reaction (literal)

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