Issue 20, 2021

Anderson-type polyoxometalate-based complexes constructed from a new ‘V’-like bis-pyridine–bis-amide ligand for selective adsorption of organic dyes and detection of Cr(vi) and Fe(iii) ions

Abstract

By introducing a new ‘V’-like bis-pyridine–bis-amide ligand 4,4′-bis(4-pyridinecarboxamide)phenylmethane (L) into the reaction system based on Anderson-type polyoxometalates [XMo6(OH)6O18]3− (X = Al or Cr), four metal–organic complexes (MOCs) 1–4, [Zn(HL)(H2O)2(XMo6(OH)6O18)]·5H2O (1: X = Al; 2: X = Cr), [Co(HL)(H2O)2(XMo6(OH)6O18)]·5H2O (3: X = Al; 4: X = Cr), have been prepared under solvothermal conditions, which have been characterized by single crystal X-ray diffraction, IR spectra, and PXRD. All structures of 1–4 involved a 2D layer that originated from XMo6 polyoxoanions and metal ions, on both sides of which the L ligands were hanged. Complexes 1–4 showed not only outstanding selective adsorption capacities for organic dyes crystal violet, methylene blue and neutral red, but also electrochemical sensing behaviors toward Cr(VI) ions and Fe(III) ions with well-pleasing limits of detection of 0.606 nM (6.24 × 10−5 ppm) and 0.0192 μM (1.08 × 10−3 ppm), suggesting their potential application as multifunctional materials.

Graphical abstract: Anderson-type polyoxometalate-based complexes constructed from a new ‘V’-like bis-pyridine–bis-amide ligand for selective adsorption of organic dyes and detection of Cr(vi) and Fe(iii) ions

Supplementary files

Article information

Article type
Research Article
Submitted
22 юни 2021
Accepted
07 авг 2021
First published
24 авг 2021

Inorg. Chem. Front., 2021,8, 4458-4466

Anderson-type polyoxometalate-based complexes constructed from a new ‘V’-like bis-pyridine–bis-amide ligand for selective adsorption of organic dyes and detection of Cr(VI) and Fe(III) ions

Y. Zhang, X. Wang, Y. Wang, L. Li, N. Xu and X. Wang, Inorg. Chem. Front., 2021, 8, 4458 DOI: 10.1039/D1QI00785H

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