Tailoring the electronic structure of In2O3/C photocatalysts for enhanced CO2 reduction,Journal of Materials Chemistry A

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Tailoring the electronic structure of In2O3/C photocatalysts for enhanced CO2 reduction
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2023-03-01 , DOI: 10.1039/d2ta09236k
Awu Zhou _{1,

2} , Chen Zhao ₂ , Jianchi Zhou ₁ , Yibo Dou ₁ , Jian-Rong Li ₂ , Min Wei ₁

Affiliation

Photoreduction of CO₂ into value-added fuels under mild conditions is a promising route to relieve the pressure from extensive CO₂ emission and energy consumption, but the rational design of novel photocatalysts for efficient CO₂ reduction remains a big challenge. Herein, a series of transition metal doped In₂O₃/C (M = Fe, Cu, and Zn) photocatalysts are prepared based on a bimetallic metal–organic framework template, where the rearrangement of electron density distribution is facilely achieved via doping metal atoms. Correspondingly, the broadened light-harvesting scope, charge transfer rate, and produced intermediates in photocatalytic CO₂ reduction can be optimized. In particular, Cu–In₂O₃/C exhibits a largely improved CO yield with a high selectivity, which is superior to that of most of the previously reported photocatalysts derived from MOFs. This work thus provides an efficient approach for tailoring the electronic structure of photocatalysts, which shows promising applications in carbon cycling.

中文翻译：

调整 In2O3/C 光催化剂的电子结构以增强 CO2 还原

在温和条件下将CO ₂光还原为增值燃料是缓解大量CO ₂排放和能源消耗压力的有前途的途径，但合理设计用于高效CO ₂还原的新型光催化剂仍然是一个巨大的挑战。在此，基于双金属金属-有机骨架模板制备了一系列掺杂 In 2 O 3 /C（M = Fe、Cu 和 Zn）的过渡金属光催化剂，其中通过掺杂金属很容易实现电子_密度分布_的重排原子。_{相应地，在光催化CO 2}中拓宽的光捕获范围、电荷转移速率和产生的中间体减少可以优化。特别是，Cu–In ₂ O ₃ /C 表现出显着提高的 CO 产率和高选择性，这优于大多数先前报道的源自 MOF 的光催化剂。因此，这项工作为定制光催化剂的电子结构提供了一种有效的方法，在碳循环中显示出有前途的应用。

更新日期：2023-03-01

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