Zirconium-Based Metal-Organic Framework for Efficient Photocatalytic Reduction of CO2 to CO: The Influence of Doped Metal Ions.,ACS Applied Materials & Interfaces

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Zirconium-Based Metal-Organic Framework for Efficient Photocatalytic Reduction of CO2 to CO: The Influence of Doped Metal Ions.
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2020-05-04 , DOI: 10.1021/acsami.0c05631
Xiaosu Gao ₁ , Biao Guo ₁ , Chunmei Guo ₁ , Qide Meng ₁ , Jing Liang ₁ , Jinxuan Liu ₁

Affiliation

Recent developments have been highlighted for UiO-type materials, a class of metal-organic frameworks (MOFs) with high stability, as catalysts for photocatalytic CO2 reduction. We design and synthesize two metal ion (Co2+, Re+)-doped UiO-67 as catalysts for the photocatalytic CO2 reduction reaction and demonstrate that Co-UiO-67 exhibits better photocatalytic activity relative to Re-UiO-67. The superior photocatalytic activity of Co-UiO-67 over Re-UiO-67 results from the improved charge transportability and higher CO2 adsorption capacity. Density functional theory (DFT) calculations reveal that the energy barrier of Co-UiO-67 (0.86 eV) for catalytic CO2 reduction to CO is lower than that of Re-UiO-67 (0.92 eV), thus leading to superior photocatalytic performance of Co-UiO-67 than that of Re-UiO-67.

中文翻译：

有效地将CO2光催化还原为CO的基于锆的金属有机框架：掺杂金属离子的影响。

UiO型材料是一类具有高稳定性的金属有机骨架（MOF），可作为光催化还原CO2的催化剂，其最新进展已得到强调。我们设计并合成了两种掺杂金属离子（Co2 +，Re +）的UiO-67作为光催化还原CO2的催化剂，并证明Co-UiO-67相对于Re-UiO-67表现出更好的光催化活性。Co-UiO-67优于Re-UiO-67的优异光催化活性归因于改进的电荷传输能力和更高的CO2吸附能力。密度泛函理论（DFT）计算表明，Co-UiO-67（0.86 eV）催化将CO2还原为CO的能垒低于Re-UiO-67（0.92 eV），因此具有出色的光催化性能Co-UiO-67比Re-UiO-67大。

更新日期：2020-05-04

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