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Issue 3, 2018

Design of two isoreticular Cd-biphenyltetracarboxylate frameworks for dye adsorption, separation and photocatalytic degradation

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Abstract

Two novel isoreticular cadmium metal–organic frameworks (MOFs) with the framework formula of [Cd2(BPTC)(solvent)3] (H4BPTC = 3,3′,5,5′-biphenyltetracarboxylic acid) have been constructed under diverse reaction conditions and characterized by single crystal X-ray diffraction, PXRD, IR and TGA. The neutral 3D frameworks of 1 and 2 with one-dimensional (1D) rhombic channels exhibit both distinct uptake and good selectivity for cationic methylene blue (MB) dye molecules. The adsorption capacity and adsorption kinetic constant of 2 are greater than those of 1, showing the importance of porosity and pore size during the adsorption. Moreover, both MOFs show effective degradation of rhodamine B (RhB) and methyl orange (MO) dyes under UV light irradiation.

Graphical abstract: Design of two isoreticular Cd-biphenyltetracarboxylate frameworks for dye adsorption, separation and photocatalytic degradation

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Article information


Submitted
01 Nov 2017
Accepted
25 Nov 2017
First published
27 Nov 2017

Dalton Trans., 2018,47, 700-707
Article type
Paper

Design of two isoreticular Cd-biphenyltetracarboxylate frameworks for dye adsorption, separation and photocatalytic degradation

W. Ji, R. Hao, W. Pei, L. Feng and Q. Zhai, Dalton Trans., 2018, 47, 700 DOI: 10.1039/C7DT04113F

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