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Issue 19, 2020
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Syntheses, characterization and properties of two new dodeca-niobates presenting unprecedented features

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Abstract

Two new dodeca-niobate materials, K3[Nb2O2][H7SiNb12O40]·16H2O (1) and [Cu(en)2]9[(VNb12V1.69Nb0.31O42en0.31)2]·20.69H2O (2) (en = ethylenediamine), have been obtained under hydrothermal conditions and characterized by IR, UV-Vis, XRD, and single crystal X-ray diffraction analysis. Single crystal X-ray analysis reveals that compound 1 presents a reasonable bridging layer structure model and that K plays a great role in the three-dimensional structure. Compound 2 is the first capped Keggin POM with organic ligand chelating the capping atom. The photocatalytic hydrogen evolution and styrene epoxidation catalytic properties of the two compounds were also assessed. Additionally, compound 1 is also a good photocatalyst to degrade RhB.

Graphical abstract: Syntheses, characterization and properties of two new dodeca-niobates presenting unprecedented features

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Article information


Submitted
13 Mar 2020
Accepted
21 Apr 2020
First published
22 Apr 2020

Dalton Trans., 2020,49, 6495-6503
Article type
Paper

Syntheses, characterization and properties of two new dodeca-niobates presenting unprecedented features

T. Zhang, P. Lin, G. Yu, X. Zhang and X. Cui, Dalton Trans., 2020, 49, 6495
DOI: 10.1039/D0DT00953A

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