Abstract Silicon nanostructures exhibit prominent properties in solar energy conversion, which particularly offer tunable light harvesting and facile surface modification in comparison with their bulk counterparts. For this reason, silicon nanostructures have been exploited towards solar-driven catalysis, with extensive attention to the related working mechanisms. In this review article, we summarize the recent advances in the solar-driven catalytic applications based on silicon nanostructures. The key parameters to band engineering and surface modification, which hold the key to light harvesting and surface reactions, are specifically outlined for silicon nanostructures. We then overview the synthetic and fabrication methods for silicon nanostructures, which allow tailoring their key parameters. Based on the fundamental mechanisms and experimental methods, we elaborate on the typical applications of silicon nanostructures in solar-driven catalysis, including photocatalytic hydrogen production, dye degradation, organic reactions, CO2 conversion and N2 fixation, and photoelectrochemical water splitting. Finally, the challenges and opportunities for further development of silicon nanostructures for solar-chemical energy conversion are highlighted.

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用于太阳能驱动催化应用的硅纳米结构

摘要 硅纳米结构在太阳能转换中表现出突出的特性，与它们的本体相比，它特别提供了可调谐的光收集和容易的表面改性。出于这个原因，硅纳米结构已被用于太阳能驱动的催化，并广泛关注相关的工作机制。在这篇评论文章中，我们总结了基于硅纳米结构的太阳能驱动催化应用的最新进展。能带工程和表面改性的关键参数是光收集和表面反应的关键，专门针对硅纳米结构进行了概述。然后我们概述了硅纳米结构的合成和制造方法，这些方法允许定制它们的关键参数。基于基本机理和实验方法，我们详细阐述了硅纳米结构在太阳能驱动催化中的典型应用，包括光催化制氢、染料降解、有机反应、CO2转化和N2固定以及光电化学水分解。最后，强调了进一步开发用于太阳能化学能转换的硅纳米结构的挑战和机遇。