Design of Metal-Organic Polymers MIL-53(M3+): Preparation and Characterization of MIL-53(Fe) and Graphene Oxide Composite

This article presents a crystal chemical analysis, generalization, and systematization of structural characteristics of metal-organic polymers MIL-53(M3+) with M = Al, Cr, Ga, and Fe. The division of the MIL-53(M3+) structures into a morphotropic series...

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Autores principales:	Quang K. Nguyen, Galina M. Kuz’micheva, Evgeny V. Khramov, Roman D. Svetogorov, Ratibor G. Chumakov, Thuy T. Cao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	metal-organic framework MIL-53 crystal structure photo-Fenton reactive red 195 dye Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/8fc372a5f0b54340a80c092d4a70d23d
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spelling	oai:doaj.org-article:8fc372a5f0b54340a80c092d4a70d23d2021-11-25T17:17:38ZDesign of Metal-Organic Polymers MIL-53(M<sup>3+</sup>): Preparation and Characterization of MIL-53(Fe) and Graphene Oxide Composite10.3390/cryst111112812073-4352https://doaj.org/article/8fc372a5f0b54340a80c092d4a70d23d2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1281https://doaj.org/toc/2073-4352This article presents a crystal chemical analysis, generalization, and systematization of structural characteristics of metal-organic polymers MIL-53(M<sup>3+</sup>) with M = Al, Cr, Ga, and Fe. The division of the MIL-53(M<sup>3+</sup>) structures into a morphotropic series was performed, which made it possible to predict the formation of new compounds or solid solutions with the corresponding composition and structure. The change in the symmetry of MIL-53(M<sup>3+</sup>) and the causes of polymorphs formation are explained on the basis of crystal chemical rules. The efficiency of the revealed regularities in the structural characteristics of the MIL-53(M<sup>3+</sup>) phases were experimentally confirmed for MIL-53(Fe) and composite MIL-53(Fe)/GO (GO-graphene oxide) by several methods (powder X-ray, X-ray absorption, and photoelectron spectroscopy). For the first time, different coordination numbers (CN) (CNFe = 4.9 for MIL-53(Fe)—two types of coordination polyhedra with CNFe = 6 and CNFe = 4; CNFe = 4 for MIL-53 (Fe<sup>3+</sup>)/GO) and the formal charges (FC) of iron ions (variable FC of Fe <sup>(2+δ)+</sup> in MIL-53(Fe<sup>3+</sup>) and Fe<sup>2+</sup> in MIL-53(Fe<sup>3+</sup>)/GO) were found. These experimental data explain the higher photocatalytic activity of MIL-53(Fe<sup>3+</sup>)/GO in photo-Fenton reactions—RR195 decomposition.Quang K. NguyenGalina M. Kuz’michevaEvgeny V. KhramovRoman D. SvetogorovRatibor G. ChumakovThuy T. CaoMDPI AGarticlemetal-organic frameworkMIL-53crystal structurephoto-Fentonreactive red 195 dyeCrystallographyQD901-999ENCrystals, Vol 11, Iss 1281, p 1281 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	metal-organic framework MIL-53 crystal structure photo-Fenton reactive red 195 dye Crystallography QD901-999
spellingShingle	metal-organic framework MIL-53 crystal structure photo-Fenton reactive red 195 dye Crystallography QD901-999 Quang K. Nguyen Galina M. Kuz’micheva Evgeny V. Khramov Roman D. Svetogorov Ratibor G. Chumakov Thuy T. Cao Design of Metal-Organic Polymers MIL-53(M<sup>3+</sup>): Preparation and Characterization of MIL-53(Fe) and Graphene Oxide Composite
description	This article presents a crystal chemical analysis, generalization, and systematization of structural characteristics of metal-organic polymers MIL-53(M<sup>3+</sup>) with M = Al, Cr, Ga, and Fe. The division of the MIL-53(M<sup>3+</sup>) structures into a morphotropic series was performed, which made it possible to predict the formation of new compounds or solid solutions with the corresponding composition and structure. The change in the symmetry of MIL-53(M<sup>3+</sup>) and the causes of polymorphs formation are explained on the basis of crystal chemical rules. The efficiency of the revealed regularities in the structural characteristics of the MIL-53(M<sup>3+</sup>) phases were experimentally confirmed for MIL-53(Fe) and composite MIL-53(Fe)/GO (GO-graphene oxide) by several methods (powder X-ray, X-ray absorption, and photoelectron spectroscopy). For the first time, different coordination numbers (CN) (CNFe = 4.9 for MIL-53(Fe)—two types of coordination polyhedra with CNFe = 6 and CNFe = 4; CNFe = 4 for MIL-53 (Fe<sup>3+</sup>)/GO) and the formal charges (FC) of iron ions (variable FC of Fe <sup>(2+δ)+</sup> in MIL-53(Fe<sup>3+</sup>) and Fe<sup>2+</sup> in MIL-53(Fe<sup>3+</sup>)/GO) were found. These experimental data explain the higher photocatalytic activity of MIL-53(Fe<sup>3+</sup>)/GO in photo-Fenton reactions—RR195 decomposition.
format	article
author	Quang K. Nguyen Galina M. Kuz’micheva Evgeny V. Khramov Roman D. Svetogorov Ratibor G. Chumakov Thuy T. Cao
author_facet	Quang K. Nguyen Galina M. Kuz’micheva Evgeny V. Khramov Roman D. Svetogorov Ratibor G. Chumakov Thuy T. Cao
author_sort	Quang K. Nguyen
title	Design of Metal-Organic Polymers MIL-53(M<sup>3+</sup>): Preparation and Characterization of MIL-53(Fe) and Graphene Oxide Composite
title_short	Design of Metal-Organic Polymers MIL-53(M<sup>3+</sup>): Preparation and Characterization of MIL-53(Fe) and Graphene Oxide Composite
title_full	Design of Metal-Organic Polymers MIL-53(M<sup>3+</sup>): Preparation and Characterization of MIL-53(Fe) and Graphene Oxide Composite
title_fullStr	Design of Metal-Organic Polymers MIL-53(M<sup>3+</sup>): Preparation and Characterization of MIL-53(Fe) and Graphene Oxide Composite
title_full_unstemmed	Design of Metal-Organic Polymers MIL-53(M<sup>3+</sup>): Preparation and Characterization of MIL-53(Fe) and Graphene Oxide Composite
title_sort	design of metal-organic polymers mil-53(m<sup>3+</sup>): preparation and characterization of mil-53(fe) and graphene oxide composite
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/8fc372a5f0b54340a80c092d4a70d23d
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Design of Metal-Organic Polymers MIL-53(M<sup>3+</sup>): Preparation and Characterization of MIL-53(Fe) and Graphene Oxide Composite

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