Abstract
This work focuses on the influence of Cu oxidation state on photocatalytic hydrogen generation by Cu/TiO₂. Hydrogen reduction was used to tailor the Cu oxidation state on the TiO₂. Cu⁺ and/or Cu⁰ appeared to be the more favourable oxidation state for generating H₂. Cu²⁺ initially present on the TiO₂ was reduced to Cu⁺ and/or Cu⁰ during the photocatalytic process. Cu deposits on reduced Cu/TiO₂ catalysts were observed to be metallic Cu with a thin shell of CuO and its activity was greater than both bare TiO₂ and air-calcined Cu/TiO₂. This enhancement could be attributed to metallic copper and improved Cu crystallinity.
| Original language | English |
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| Title of host publication | Proceedings of the 2014 International Conference on Nanoscience and Nanotechnology |
| Subtitle of host publication | ICONN 2014 |
| Place of Publication | Piscataway, NJ |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Pages | 4-6 |
| Number of pages | 3 |
| ISBN (Electronic) | 9781479935215, 9781479935222 |
| ISBN (Print) | 9781479935215 |
| DOIs | |
| Publication status | Published - 21 Nov 2014 |
| Externally published | Yes |
| Event | International Conference on Nanoscience and Nanotechnology - Adelaide, South Australia Duration: 2 Feb 2014 → 6 Feb 2014 |
Conference
| Conference | International Conference on Nanoscience and Nanotechnology |
|---|---|
| City | Adelaide, South Australia |
| Period | 2/02/14 → 6/02/14 |
Keywords
- copper
- TiO₂
- oxidation state
- photocatalytic hydrogen production