3D 互锁金属有机共价框架作为一种可见光响应型光催化剂

3D Interlocking Metallo-COFs as a Visible Light Responsive Photocatalyst.

作者信息

Khojastegi Anahita, Khosropour Ahmadreza, Auras Florian, Abbaspourrad Alireza

机构信息

Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, 14853, USA.

Faculty of Chemistry and Food Chemistry, TUD Dresden University of Technology, 01217, Dresden, Germany.

出版信息

Small. 2024 Dec 15:e2408151. doi: 10.1002/smll.202408151.

DOI:10.1002/smll.202408151

PMID:39676380

Abstract

Woven covalent organic frameworks (COFs) offer immense potential as photoactive materials because Cu(I) complexes are periodically integrated into the COF structure via a single synthetic step. A photoactive interlocking (woven) COF featuring Cu(I) photosensitizers that are spatially isolated and periodically arranged in three dimensions has been successfully synthesized and characterized. The optoelectronic properties of this COF, such as light absorption and photocatalytic performance toward the degradation of sulfamethoxazole (SMX) under visible light, are investigated. The reusability and stability of this COF are compared with the Cu(PDB)BF complex which displayed rapid deactivation and is not reusable. Conversely, The metallo-COF is stable over several catalytic cycles, highlighting a distinct advantage of the stabilizing effects of the COF over discrete molecules.

摘要

编织共价有机框架（COF）作为光活性材料具有巨大潜力，因为Cu（I）配合物通过单一合成步骤周期性地整合到COF结构中。一种具有空间隔离且三维周期性排列的Cu（I）光敏剂的光活性互锁（编织）COF已成功合成并表征。研究了该COF的光电性质，如光吸收以及在可见光下对磺胺甲恶唑（SMX）降解的光催化性能。将该COF的可重复使用性和稳定性与表现出快速失活且不可重复使用的Cu（PDB）BF配合物进行了比较。相反，金属COF在几个催化循环中保持稳定，突出了COF相对于离散分子的稳定作用的明显优势。