The electrochemical deposition of a mixed oxide on the Ag nanostructured surface of a commercial digital versatile disc (DVD) is described. The VO2/V2O5 mixture shows interesting photoelectrocatalytic performances under visible-light illumination after diffusion of the Ag+ ions from the Ag-DVD substrate through the layer and formation of surface vanadates, which also allows it to be applied as an inexpensive sensing device. The samples were characterized with X-ray photoemission spectroscopy (XPS), scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), and Raman measurements. The sensing properties towards oxidizable organic substances, such as glucose, were tested.
VO2/V2O5:Ag nanostructures on a DVD as photoelectrochemical sensors
RIZZI, GIAN-ANDREA;ZHENG, JIAN;CALVILLO LAMANA, LAURA;GRANOZZI, GAETANO
2016
Abstract
The electrochemical deposition of a mixed oxide on the Ag nanostructured surface of a commercial digital versatile disc (DVD) is described. The VO2/V2O5 mixture shows interesting photoelectrocatalytic performances under visible-light illumination after diffusion of the Ag+ ions from the Ag-DVD substrate through the layer and formation of surface vanadates, which also allows it to be applied as an inexpensive sensing device. The samples were characterized with X-ray photoemission spectroscopy (XPS), scanning electron microscopy (SEM), electrochemical impedance spectroscopy (EIS), and Raman measurements. The sensing properties towards oxidizable organic substances, such as glucose, were tested.
| File | Dimensione | Formato | |
|---|---|---|---|
|
Zheng_et_al-2016-ChemPlusChem.pdf
Accesso riservato
Tipologia:
Published (Publisher's Version of Record)
Licenza:
Accesso privato - non pubblico
Dimensione
2.24 MB
Formato
Adobe PDF
|
2.24 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
