A Highly Efficient Near-Infrared-Activated Photocatalyst Based on an Electron-Deficient Copper-Viologen-Polyoxometalate Framework with a Copper {Cu3} Cluster Decorated Phosphotungstate as a Building Block,Crystal Growth & Design

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A Highly Efficient Near-Infrared-Activated Photocatalyst Based on an Electron-Deficient Copper-Viologen-Polyoxometalate Framework with a Copper {Cu3} Cluster Decorated Phosphotungstate as a Building Block
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2019-11-12 , DOI: 10.1021/acs.cgd.9b01237
Xiaojuan Sun _{1,

2} , Jie Zhang ₁ , Aidong Tan ₁ , Zhiyong Fu _{1,

2}

Affiliation

A photocatalytic active phosphotungstate cluster is incorporated into the backbone of an electron-deficient copper-viologen framework via a copper-substituted and coordination connection. Self-assembly with a bottom-up designed strategy allows functional units to be organized into an ordered arrangement [Cu₂(H₂O)₃(CPBPY)₂(CuHPW₁₁O₃₉)]·7H₂O (1) that tunes the band structure and engineers the optical energy gap of the photocatalyst. Interactions between the electron-deficient host framework and the captured guest cluster strengthens the photogenerated electron–hole separation. This designed catalytic molecular system shows a high photooxidation capability toward the degradation of dye pollutants with a UV, visible, and even near-infrared light response.

中文翻译：

基于缺电子的铜{Vi ₃ }多金属氧酸盐骨架，以铜{Cu ₃ }簇修饰磷钨酸盐的高效近红外活化光催化剂

通过铜取代的配位连接将光催化活性磷钨酸盐簇结合到缺电子的铜-紫精骨架的骨架中。通过自底向上设计策略进行自组装，可以将功能单元组织为有序排列[Cu ₂（H ₂ O）₃（CPBPY）₂（CuHPW ₁₁ O ₃₉）]·7H ₂ O（1），从而调整能带结构并设计光催化剂的光能隙。缺乏电子的宿主框架与捕获的客体簇之间的相互作用加强了光生电子-空穴的分离。这种设计的催化分子系统显示出高的光氧化能力，可降解具有紫外线，可见光甚至近红外光的染料污染物。

更新日期：2019-11-13

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