The present work investigates the photocatalytic performance of TiO2 nanotubes with different tube top morphologies. Such morphological variations are obtained when growing self-organized nanotube arrays under different (but widely used) anodization conditions. We compare the most typical appearances of tube tops that are: i) “grassy” tubes, ii) tubes with initiation layers, iii) doubled anodized and iv) “open” tubes. The results show that tubes with an open, defined mouth have a significantly enhanced photocatalytic performance in open circuit, dye degradation experiments as well as when used as a photoanodes for photoelectrochemical water splitting.
Anodic TiO2 nanotubes: Influence of top morphology on their photocatalytic performance
MAZZAROLO, ALICE;VICENZO, ANTONELLO;
2012-01-01
Abstract
The present work investigates the photocatalytic performance of TiO2 nanotubes with different tube top morphologies. Such morphological variations are obtained when growing self-organized nanotube arrays under different (but widely used) anodization conditions. We compare the most typical appearances of tube tops that are: i) “grassy” tubes, ii) tubes with initiation layers, iii) doubled anodized and iv) “open” tubes. The results show that tubes with an open, defined mouth have a significantly enhanced photocatalytic performance in open circuit, dye degradation experiments as well as when used as a photoanodes for photoelectrochemical water splitting.| File | Dimensione | Formato | |
|---|---|---|---|
|
1-s2.0-S1388248112002469-main.pdf
Accesso riservato
:
Post-Print (DRAFT o Author’s Accepted Manuscript-AAM)
Dimensione
790.01 kB
Formato
Adobe PDF
|
790.01 kB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
