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On Structural Features Necessary for Near‐IR‐Light Photocatalysts
Author(s) -
Wang Gang,
Huang Baibiao,
Li Zhujie,
Wang Zeyan,
Qin Xiaoyan,
Zhang Xiaoyang,
Dai Ying,
Whangbo MyungHwan
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201501477
Subject(s) - polyhedron , photocatalysis , metal , acceptor , irradiation , photochemistry , chemistry , materials science , catalysis , organic chemistry , mathematics , physics , combinatorics , nuclear physics , condensed matter physics
In the search for photocatalysts that can directly utilize near‐IR (NIR) light, we investigated three oxides Cu 3 (OH) 4 SO 4 (antlerite), Cu 4 (OH) 6 SO 4 , and Cu 2 (OH) 3 Cl by photodecomposing 2,4‐dichlorophenol over them under NIR irradiation and by comparing their electronic structures with that of the known NIR photocatalyst Cu 2 (OH)PO 4 . Both Cu 3 (OH) 4 SO 4 and Cu 4 (OH) 6 SO 4 are NIR photocatalysts, but Cu 2 (OH) 3 Cl is not. Thus, in addition to the presence of two different CuO m and Cu′O n polyhedra linked with CuOCu′ bridges, the presence of acceptor groups (e.g., SO 4 , PO 4 ) linked to the metal oxygen polyhedra is necessary for NIR photocatalysts.