Robust chromophore-integrated MOFs as highly visible-white-light active and tunable size-selective photocatalysts towards benzothiazoles  

作　　者：Hua Liu Quanquan Li Penghui Pan Li Zhou Bing Deng Shuya Zhao Ping Liu Yaoyu Wang Jianli Li 

机构地区：[1]College of Chemistry&Materials Science,Northwest University,Xi’an 710127,China [2]College of Urban and Environmental Sciences,Northwest University,Xi’an 710127,China

出　　处：《Chinese Chemical Letters》2023年第10期180-184,共5页中国化学快报（英文版）

基　　金：financially supported by the National Natural Science Foundation of China (Nos. 22171223, 22077099 and 21531007);the Innovation Capability Support Program of Shaanxi (Nos. 2023-CX-TD-75 and 2022KJXX-32);the Natural Science Foundation of Shaanxi Province of China (Nos. 2020TG-031, 2022JQ125, 2023-JC-YB-141, 2022JQ-151 and 2021JQ-440);the special fund of Shaanxi Key Laboratory of Special Fuel Chemistry and Material (No. SPCF-SKL-2021-0011);Young Talent Fund of Association for Science and Technology in Shaanxi, China (No. SWYY202206)。

摘　　要：Visible-light heterogeneous photocatalyst with high activity and selectivity is crucial for the development of organic transformations, but remains a formidable challenge. Herein, a simple and effective strategy was developed to integrate tetrazine moiety, a visible light active unit, into robust metal-organic frameworks(2D MOF-1(M), M = Co, Mn, Zn, and 3D MOF-2(Co)). MOF-1 series are isomorphous 2D porous frameworks, and MOF-2(Co) displays 3D porous framework. Interestingly, benefiting from the oxidative active species of O_(2)·-, these MOFs all exhibit obviously highly enhanced photocatalytic activities toward the straightforward condensation of o-aminothiophenol and aromatic aldehydes at room temperature in Et OH under visible-white-light irradiation. Notably, compared to 3D MOF, the 2D layered MOF-1(Co) exhibited more excellent catalytic activity with a wide range of substrates possessing preeminent tolerance of steric hindrance. Most impressively, MOF-1(Co) can be recycled at least five times without significant loss of catalytic activity or crystallinity, exhibiting excellent stability and reusability. This study sheds light on the wide-ranging prospects of visible light active 2D MOFs as green photocatalysts for the preparation of fine chemicals.

关 键 词：Metal-organic framework Heterogeneous photocatalyst TETRAZINE BENZOTHIAZOLE Substrates selectivity 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]