Issue 20, 2018

Syntheses, structures and efficient visible light-driven photocatalytic properties of layered cuprous halides based on two types of building units

Abstract

Three novel hybrid cuprous halides, [Me3TPT][Cu5I8] (1, Me3TPT = N,N′,N′′-trimethyl-2,4,6-tris(4-pyridyl)-1,3,5-triazine), [Et3TPT][Cu5I8] (2, Et3TPT = N,N′,N′′-triethyl-2,4,6-tris(4-pyridyl)-1,3,5-triazine), and [Me3TPT][Cu5Br8] (3), were solvothermally prepared by using in situ N-alkylated 2,4,6-tri(4-pyridyl)-1,3,5-triazine (TPT) derivatives as structure-directing agents. All the compounds feature layered structures extended by two types of building units, i.e. the chain-like Cu3I6/Cu3Br7 ({Cu3}) cluster and ribbon-like Cu4I10/Cu4Br10 ({Cu4}) cluster. UV-Vis spectra analyses indicate that they are potential semiconductor materials with narrow energy gaps of 1.05, 1.02, and 1.30 eV, respectively. These materials exhibit stable catalytic activity in the sunlight-driven degradation of organic dyes. Theoretical studies revealed that the N-alkylated TPT moieties contributed to the narrow semiconducting behavior, which results in the excellent visible light-driven photocatalytic activity.

Graphical abstract: Syntheses, structures and efficient visible light-driven photocatalytic properties of layered cuprous halides based on two types of building units

Supplementary files

Article information

Article type
Paper
Submitted
15 Dec 2017
Accepted
26 Apr 2018
First published
27 Apr 2018

Dalton Trans., 2018,47, 6965-6972

Syntheses, structures and efficient visible light-driven photocatalytic properties of layered cuprous halides based on two types of building units

A. Sun, Q. Wei, A. Fu, S. Han, J. Li and G. Wang, Dalton Trans., 2018, 47, 6965 DOI: 10.1039/C7DT04733A

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