Steering Charge Kinetics in Photocatalysis: Intersection of Materials Syntheses, Characterization Techniques and Theoretical Simulations
Steering Charge Kinetics in Photocatalysis: Intersection of Materials Syntheses, Characterization Techniques and Theoretical Simulations
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DOI：
10.1002/chin.201529262
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发表时间：
2015-07
期刊：
影响因子：
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通讯作者：
Song Bai;Jun Jiang;Qun Zhang;Y. Xiong
中科院分区：
文献类型：
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作者：
Song Bai;Jun Jiang;Qun Zhang;Y. Xiong
电荷动力学在确定光催化中太阳能到化学转化的量子效率方面是非常关键的，这包括但不限于光激发电子-空穴对的分离，等离子体热载子的利用和光诱导电荷到反应位点的传递，以及通过带电电荷激活反应物。在这篇综述中，我们重点介绍了在探测和引导电荷动力学设计高效光催化剂方面的最新进展，并阐明了在光催化研究中结合使用受控合成、表征技术（重点是光谱表征）和理论模拟的基础。我们首先介绍了与电荷动力学相关的各种过程的原理，这些过程可以解释或可能影响光催化，从中可以总结出一组对光催化剂设计至关重要的参数。然后，我们概述了光催化剂结构的设计规则及其相应的合成方法。本文还介绍了表征技术的实现和光催化不同步骤的理论模拟，以及相关的基本原理和工作机制。最后，我们讨论了光催化研究在这个独特的交叉点上面临的挑战和机遇，以及对其他研究领域的潜在影响。
Charge kinetics is highly critical in determining the quantum efficiency of solar-to-chemical conversion in photocatalysis, and this includes, but is not limited to, the separation of photoexcited electron–hole pairs, utilization of plasmonic hot carriers and delivery of photo-induced charges to reaction sites, as well as activation of reactants by energized charges. In this review, we highlight the recent progress on probing and steering charge kinetics toward designing highly efficient photocatalysts and elucidate the fundamentals behind the combinative use of controlled synthesis, characterization techniques (with a focus on spectroscopic characterizations) and theoretical simulations in photocatalysis studies. We first introduce the principles of various processes associated with charge kinetics that account for or may affect photocatalysis, from which a set of parameters that are critical to photocatalyst design can be summarized. We then outline the design rules for photocatalyst structures and their corresponding synthetic approaches. The implementation of characterization techniques and theoretical simulations in different steps of photocatalysis, together with the associated fundamentals and working mechanisms, are also presented. Finally, we discuss the challenges and opportunities for photocatalysis research at this unique intersection as well as the potential impact on other research fields.