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A Semi‐Conductive Copper–Organic Framework with Two Types of Photocatalytic Activity
Author(s) -
Wu ZhiLei,
Wang ChangHong,
Zhao Bin,
Dong Jie,
Lu Feng,
Wang WeiHua,
Wang WeiChao,
Wu GuangJun,
Cui JianZhong,
Cheng Peng
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201508325
Subject(s) - photocatalysis , van der waals force , copper , materials science , photochemistry , electrical conductor , band gap , visible spectrum , degradation (telecommunications) , excited state , electron , chemical physics , catalysis , optoelectronics , chemistry , molecule , organic chemistry , atomic physics , composite material , physics , computer science , metallurgy , telecommunications , quantum mechanics
Based on the newly designed ligand 4′‐(3,5‐dicarboxyphenyl)‐4,2′:6′,4′′‐terpyridine (DCTP), a unique semi‐conductive 3D framework {[Cu Ι Cu ΙΙ 2 (DCTP) 2 ]NO 3 ⋅1.5 DMF} n ( 1 ) with a narrow band gap of 2.1 eV, was obtained and structurally characterized. DFT calculations with van de Waals correction employed to explore the electronic structure of 1 , clearly revealed its semi‐conductive behavior. Furthermore, we found that 1 exhibits a superior band alignment with water to produce hydrogen and degrade organic pollutants. Without adding any photosensitizers, 1 displays an efficiently photocatalytic hydrogen production in water based on the photo‐generated electrons under UV/Vis light. 1 also exhibits excellent photo‐degradation of methyl blue under visible‐light owing to the strong oxidization of excited holes. It is the first example of MOFs with doubly photocatalytic activities related to photo‐generated electrons and holes, respectively.