期刊
BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
卷 16, 期 -, 页码 1495-1549出版社
BEILSTEIN-INSTITUT
DOI: 10.3762/bjoc.16.125
关键词
air purification; flow chemistry; heterogeneous photoredox catalysis; organic synthesis; reactor design; water purification
资金
- Engineering and Physical Sciences Research Council
- Heriot-Watt University
- CRITICAT Centre for Doctoral Training [EP/L014419/1]
The synergy between photocatalysis and continuous flow chemical reactors has shifted the paradigms of photochemistry, opening new avenues of research with safer and scalable processes that can be readily implemented in academia and industry. Current state-of-the-art photocatalysts are homogeneous transition metal complexes that have favourable photophysical properties, wide electro-chemical redox potentials, and photostability. However, these photocatalysts present serious drawbacks, such as toxicity, limited availability, and the overall cost of rare transition metal elements. This reduces their long-term viability, especially at an industrial scale. Heterogeneous photocatalysts (HPCats) are an attractive alternative, as the requirement for the separation and purification is largely removed, but typically at the cost of efficiency. Flow chemical reactors can, to a large extent, mitigate the loss in efficiency through reactor designs that enhance mass transport and irradiation. Herein, we review some important developments of heterogen-eous photocatalytic materials and their application in flow reactors for sustainable organic synthesis. Further, the application of con-tinuous flow heterogeneous photocatalysis in environmental remediation is briefly discussed to present some interesting reactor designs that could be implemented to enhance organic synthesis.
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