Steady-state and time-resolved photoluminescence for innovative development of solar-to-fuel photocatalysts

稳态和时间分辨光致发光用于太阳能光催化剂的创新开发

• 批准号: RTI-2023-00381
• 负责人: Nguyen, NhatTruong
• 金额: $ 9.76万
• 依托单位: Concordia University
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=746902
• 关键词: Steady; state; time; resolved; photoluminescence

Reducing the number of pollutants emitted into the atmosphere and transforming the existing ones into valuable substances are critical points in the struggle against global warming and the greenhouse effect. Especially, the transformation of CO2 molecules into fuels is one of the promising solutions that has attracted significant attention in both public and scientific sectors around the globe. For this purpose, different catalytic and photocatalytic alternatives have been successfully designed and studied. The latter approach is much more attractive due to the possibility of harvesting sunlight to convert CO2 molecules into CO, CH4, methanol, C2+ hydrocarbons. These products are not only less harmful to the atmosphere but are also essential feedstocks for the chemical industry. However, the obtention of highly selective and active photocatalytic systems is still a challenge that has to be overcome, and further research needs to be developed to do so. The current research proposal requests a spectrofluorometer for lifetime-resolved and steady-state photoluminescence, which will allow strong characterization of the photocatalytic systems obtained in our research group. This instrument is crucial to derive new conclusions, take new directions on our research, and explore different modifications to the catalytic systems developed.

减少排放到大气中的污染物的数量并将现有的污染物转化为有价值的物质是与全球变暖和温室效应作斗争的关键点。特别是，将CO2分子转化为燃料是一种有前途的解决方案，已经引起了地球仪公众和科学部门的极大关注。为此，不同的催化和光催化替代品已成功地设计和研究。后一种方法更有吸引力，因为可以收集阳光将CO2分子转化为CO，CH4，甲醇，C2+烃。这些产品不仅对大气的危害较小，而且也是化学工业的重要原料。然而，获得高选择性和活性的光催化系统仍然是一个挑战，必须克服，需要进一步的研究来做到这一点。目前的研究建议要求寿命分辨和稳态光致发光，这将允许在我们的研究小组获得的光催化系统的强有力的表征分光荧光计。该仪器对于得出新的结论，在我们的研究中采取新的方向以及探索对所开发的催化系统的不同修改至关重要。