The development of light-promoted organic synthesis has gained great momentum in recent years. However, the rates of photochemical reactions are dependent on the photon flux, which is typically limited by Beer–Lambert attenuation, and hampers their broad application in large-scale production. When photochemistry takes place inside clouds, photochemical reaction rates exceed clear-sky values due to the increased photon path lengths resulting from multiple reflections and refractions at droplet-air interfaces. Herein, by mimicking how nature accelerates photochemical reactions, we present a flow reactor scheme that utilizes the liquid–solid interfaces provided by densely packed glass beads as efficient light scatterers to enable homogeneous distribution and intensification of light absorption within the reaction media. With this design, we are able to scale up photo flow-reactors from micro-scale to meso-scale without compromising their performance.

中文翻译：

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受云启发的多重散射，用于光增强光化学流反应器

近年来，光促进有机合成的发展获得了巨大动力。但是，光化学反应的速率取决于光子通量，而光子通量通常受Beer–Lambert衰减的限制，从而妨碍了其在大规模生产中的广泛应用。当光化学发生在云层内部时，由于液滴与空气界面的多次反射和折射导致光子路径长度增加，光化学反应速率超过了晴空值。在这里，通过模仿自然界如何加速光化学反应，我们提出了一种流动反应器方案，该方案利用了紧密堆积的玻璃珠提供的液-固界面作为有效的光散射体，以使反应介质中的光吸收均匀分布并增强。有了这个设计