Issue 36, 2021

New Cd(ii) coordination polymers bearing Y-shaped tricarboxylate ligands as photocatalysts for dye degradation

Abstract

Coordination polymers (CPs) are an assorted class of multidimensional materials which can be employed as photocatalysts against the photodegradation of toxic aromatic dyes existing in wastewater discharge. Herein, two new coordination polymers with formulas [Cd3(L)22-H2O)(H2O)·2H2O] (1) and [Cd(HL)(H2O)(phen)·H2O] (2) have been derived from Y-shaped tricarboxylate ligand 1,3,5-tris(4-carbonylphenyloxy)benzene (H3L) and 1,10-phenanthroline (phen) as a co-ligand. The single crystal X-ray diffraction studies revealed that 1 presents a 3D pillar-layer framework, which contains a 1D stair-type chain and 2D layer. CP 2 displays wave-like 1D chains which link to each other to create a 2D architecture through hydrogen-bonding interactions. The introduction of the chelating N-donor ligand led to significant differences in the final frameworks. Both CPs exhibited efficient photocatalytic performance for the degradation of organic dyes viz. methyl violet (MV), methyl orange (MO), methylene blue (MB) and rhodamine B (RhB) under UV irradiation. Moreover, a possible photocatalytic mechanism via trapping experiments of active species has been proposed. In addition, a mechanistic study towards better understanding of the photocatalytic degradation of dyes has been accomplished through LC-MS studies. Also, computationally using band gap calculations, the probable mechanistic pathway has also been proposed which has been further corroborated with Hirshfeld surface analysis.

Graphical abstract: New Cd(ii) coordination polymers bearing Y-shaped tricarboxylate ligands as photocatalysts for dye degradation

Supplementary files

Article information

Article type
Paper
Submitted
13 mai 2021
Accepted
04 août 2021
First published
04 août 2021

CrystEngComm, 2021,23, 6400-6408

New Cd(II) coordination polymers bearing Y-shaped tricarboxylate ligands as photocatalysts for dye degradation

L. Du, L. Lu, C. Shi, H. Wang, J. Wang, A. Singh and A. Kumar, CrystEngComm, 2021, 23, 6400 DOI: 10.1039/D1CE00640A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements