| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Composite Materials for Sustainable and Eco-Friendly Material Development and Application
|
| Presentation Title |
Nanocomposite Materials for Accelerating Decarbonization |
| Author(s) |
Simona E. Hunyadi Murph |
| On-Site Speaker (Planned) |
Simona E. Hunyadi Murph |
| Abstract Scope |
Decarbonization, solar conversion of carbon dioxide and water vapor to carbon monoxide, hydrogen and hydrocarbons is demonstrated by exposure of titania-based nanophotocatalysts under ambient light only. TiO2 nanorod arrays fabricated by physical vapor depositio are engineered with quantum dots (CdSe) prepared by solution chemistry. These nanocomposite structures are used as the photocatalysts for CO2 conversion under sunlight illumination. A gas chromatographic analysis shows that the primary products are carbon monoxide, hydrogen and hydrocarbons (methanol and methane) after several hours of exposure to sun light. The overall CO2 conversion efficiency of such quantum dot-titania nanostructures is significantly higher than that of pure TiO2 nanorod array photocatalyst. The improved conversion efficiency may result from the additional absorbance of visible light by the quantum dots and the charge separation at the CdSe-TiO2 interfaces. |
| Proceedings Inclusion? |
Planned: |