Highly effective photoreduction of CO2 to CO promoted by integration of CdS with molecular redox catalysts through metal–organic frameworks†,Chemical Science

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Highly effective photoreduction of CO2 to CO promoted by integration of CdS with molecular redox catalysts through metal–organic frameworks†
Chemical Science ( IF 7.6 ) Pub Date : 2018-09-24 00:00:00 , DOI: 10.1039/c8sc02809e
Chunjun Chen _{1,

2} , Tianbin Wu ₁ , Haihong Wu ₃ , Huizhen Liu _{1,

2} , Qingli Qian ₁ , Zhimin Liu _{1,

2} , Guanying Yang ₁ , Buxing Han _{1,

2}

Affiliation

We propose a strategy to synthesize ternary CdS/UiO-bpy/Co composites by integration of CdS and molecular redox catalysts through metal–organic framework (MOF) UiO-bpy. The CdS/UiO-bpy/Co composites were very effective for photocatalytic conversion of CO₂ to CO under visible light irradiation. The evolution rate of CO could reach 235 μmol g⁻¹ h⁻¹, which was a 10.2-fold improvement compared to that for the parent CdS, and selectivity for CO was 85%. The outstanding performance of the CdS/UiO-bpy/Co composites resulted from promoting the separation and migration of photo-induced charge carriers, enhancing the adsorption of CO₂ molecules, and offering abundant active sites for CO₂ reduction. As far as we know, this is the first study to integrate inorganic semiconductors and molecular redox catalysts through MOFs.

中文翻译：

通过金属有机框架将 CdS 与分子氧化还原催化剂结合，促进 CO2 高效光还原为 CO†

我们提出了一种通过金属有机骨架（MOF）UiO-bpy整合CdS和分子氧化还原催化剂来合成三元CdS/UiO-bpy/Co复合材料的策略。 CdS/UiO-bpy/Co复合材料在可见光照射下对CO ₂光催化转化为CO非常有效。 CO的析出速率可达235 μmol g ^-1 h ^-1 ，比母体CdS提高了10.2倍，CO的选择性为85%。 CdS/UiO-bpy/Co复合材料的优异性能源于促进光生载流子的分离和迁移，增强CO ₂分子的吸附，并为CO ₂还原提供丰富的活性位点。据我们所知，这是第一个通过MOFs整合无机半导体和分子氧化还原催化剂的研究。

更新日期：2018-09-24

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