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BODIPY functional metal–organic-frameworks for efficient visible-light-driven water oxidation without additional photosensitizers
Sustainable Energy & Fuels ( IF 5.0 ) Pub Date : 2021-2-15 , DOI: 10.1039/d0se01756f
Hao Li 1, 2, 3, 4 , Min Zhou 1, 2, 3, 4 , Qiu-Yun Chen 1, 2, 3, 4 , Xin-Yue Liu 1, 2, 3, 4 , Xiao-Long Kan 1, 2, 3, 4 , Miao Sun 1, 2, 3, 4 , Ling-Ling Qu 1, 2, 3, 4
Affiliation  

A novel photosensitizer–catalyst assembly (BODIPY-MIL-88B (Fe)) has been successfully fabricated via a one-step solvothermal method and successfully employed as a light-driven water oxidation catalyst. Compared with conventional multicomponent systems, BODIPY-MIL-88B (Fe) exhibits excellent photocatalytic water oxidation activity without additional photosensitizers due to the rapid intermolecular charge transfer in the assembly. BODIPY (Boron Dipyrromethene) in the assembly can increase light absorption and effectively decrease the band gaps and electron–hole recombination rate, which are beneficial for the photocatalytic activity of BODIPY-MIL-88B (Fe). Interestingly, BODIPY not only acts as a photosensitizer group, but also as a structure-directing agent in controlling the morphology of BODIPY-MIL-88B (Fe). Moreover, the possible water oxidation mechanism is proposed through trapping experiments of active species. This work provides a prospective strategy for the development of some new potential applications of MOFs by introducing functional groups into the frameworks.

中文翻译:

BODIPY功能性金属有机框架,无需其他光敏剂即可实现有效的可见光驱动的水氧化

新型光敏剂-催化剂组件(BODIPY-MIL-88B(Fe))已成功通过一步溶剂热法,并成功地用作光驱动水氧化催化剂。与传统的多组分系统相比,BODIPY-MIL-88B(Fe)由于在组件中快速的分子间电荷转移,因此具有出色的光催化水氧化活性,而无需其他光敏剂。组件中的BODIPY(硼二吡咯甲烷)可以增加光吸收并有效地减少带隙和电子-空穴复合率,这对BODIPY-MIL-88B(Fe)的光催化活性是有益的。有趣的是,BODIPY不仅充当光敏剂基团,而且还充当控制BODIPY-MIL-88B(Fe)形态的结构导向剂。此外,通过捕获活性物种的实验,提出了可能的水氧化机理。
更新日期:2021-02-24
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