Issue 28, 2018

A new stable luminescent Cd(ii) metal–organic framework with fluorescent sensing and selective dye adsorption properties

Abstract

A new luminescent metal–organic framework, {[Cd3(HL)2(H2O)3]·3H2O·2CH3CN}n (1) (H4L = 1-(3,5-dicarboxylatobenzyl)-3,5-pyrazole dicarboxylic acid), has been synthesized by solvothermal reaction and characterized by infrared spectroscopy, powder X-ray diffraction, thermogravimetry measurements and so on. 1 shows a new trinodal (4,4,6)-connected topology. Importantly, 1 displays intense luminescence in the solid state and high luminescent sensitivity and selectivity for Fe3+, CrO42− and Cr2O72− ions in aqueous solution, making it a potential probe for detecting these substances. The quenching mechanisms are also further discussed in detail. In addition, further research on the adsorption of dyes shows that 1 can selectively adsorb Congo red dye from other dye molecules.

Graphical abstract: A new stable luminescent Cd(ii) metal–organic framework with fluorescent sensing and selective dye adsorption properties

Supplementary files

Article information

Article type
Paper
Submitted
28 Apr 2018
Accepted
24 May 2018
First published
02 Jul 2018

Dalton Trans., 2018,47, 9466-9473

A new stable luminescent Cd(II) metal–organic framework with fluorescent sensing and selective dye adsorption properties

W. Tong, W. Liu, J. Cheng, P. Zhang, G. Li, L. Hou and Y. Wang, Dalton Trans., 2018, 47, 9466 DOI: 10.1039/C8DT01694A

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