Abstract
Polyoxophosphotungstate-incorporated titania/titanium nanocomposite (POPTA-TiO2/Ti) has been developed as a photo-anode for photo-electro-catalytic application. Highly-ordered anatase TiO2nanotube array with a vertical orientation is synthesized by a controlled anodization plus a post-calcination. Hybrid incorporation is followed by embedding POPTA into TiO2tubule channels. The morphological characteristics, crystal behavior and chemical structure of POPTA-TiO2are examined by field emission scanning electron microscopy, X-ray diffraction (XRD), thermogravimetry analysis and Fourier transformed infra-red spectroscopy. Electrochemical properties and photocurrent responses have been investigated by linear sweep voltammetry. Photo-catalytic and photo-electro-catalytic applications for recalcitrant organic pollutant degradation have been investigated to examine photo-electrochemical efficiency and effectiveness of POPTA-TiO2/Ti nanocomposite photo-anode. Electro-generation hydrogen pyroxide (H2O2)-assisted TiO2photo-electro-catalysis has been also conducted by using dual functional electrodes of a nanotubular POPTA-TiO2/Ti photo-anode and a vitreous carbon cathode for enhanced photo-electrochemical performance.
| Original language | English |
|---|---|
| Pages (from-to) | 15-23 |
| Number of pages | 9 |
| Journal | Applied Catalysis B: Environmental |
| Volume | 76 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 30 Oct 2007 |
Keywords
- Nanocomposite photo-anode
- Photo-electro-catalytic
- Polyoxophosphotungstate
- Titania nanotube array
ASJC Scopus subject areas
- Catalysis
- General Environmental Science
- Process Chemistry and Technology