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Molecules
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Recent Advances in Metal–Organic Frameworks
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Recent Advances in Metal–Organic Frameworks

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: 30 November 2024 | Viewed by 2728

Special Issue Editor

Prof. Dr. Pengcheng Huang

E-Mail Website
Guest Editor
School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, China
Interests: fluorescent probes; colorimetry; metal nanoclusters and nanoparticles; metal–organic framework; carbon dots; cell imaging
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Metal–organic frameworks (MOFs) are among the most promising novel materials. These belong to a new class of crystalline porous materials that mainly consist of co-ordination bonds between metal clusters (e.g., metal–carboxylate clusters and metal–azolate clusters), metal atoms, or rod-shaped clusters and multidentate organic linkers that contain oxygen or nitrogen donors (like carboxylates, azoles, nitriles, etc.), thus, a highly ordered three-dimensional architecture is formed.

This Special Issue will provide an attractive opportunity for the readership to obtain significant and helpful information concerning novel approaches for the MOFs and their application in different fields of technological interest. This will be an appropriate occasion for the authors to exhibit and publish their latest achievements in this and related fields.

We sincerely welcome you to submit your research on all relevant topics for this Special Issue in the form of full papers, reviews, or communications.

Prof. Dr. Pengcheng Huang
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • metal–organic framework
  • fluorescent detection and imaging
  • visual analysis
  • MOF-based nanozyme

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Published Papers (2 papers)

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Research

13 pages, 5661 KiB  
Article
New Insights into ZIF-90 Synthesis
by Jan Marčec, Alenka Ristić and Nataša Zabukovec Logar
Molecules 2024, 29(16), 3731; https://doi.org/10.3390/molecules29163731 - 6 Aug 2024
Viewed by 1396
Abstract
Zeolitic imidazolate frameworks (ZIFs) are traditionally synthesized using N, N-dimethylformamide (DMF). However, DMF is toxic and hazardous to human health and the environment, hence other alternative solvents need to be considered. Herein, three different solvents like methanol, water and acetone were used to [...] Read more.
Zeolitic imidazolate frameworks (ZIFs) are traditionally synthesized using N, N-dimethylformamide (DMF). However, DMF is toxic and hazardous to human health and the environment, hence other alternative solvents need to be considered. Herein, three different solvents like methanol, water and acetone were used to replace DMF and to explore the syntheses of ZIF-90 using a conventional and a microwave-assisted solvothermal method to obtain hydrothermally stable products, which also exhibit an increased water uptake. Pure ZIF-90 was synthesized under ambient pressure at 60 °C for 90 min using the conventional solvothermal method in an acetone–water solution, while under microwave irradiation it was formed in only 5 min at 80 °C. Altering methanol, water and acetone in the reaction mixture significantly affected the structural and water adsorption properties of ZIF-90s, which were monitored via PXRD, TGA, nitrogen and water sorption, and SEM. The highly efficient, less toxic, low-cost and activation-free microwave synthesis resulted in the formation of ZIF-90 nanoparticles that exhibited the highest maximum water adsorption capacity (0.37 g/g) and the best hydrothermal stability between water adsorption at 30 °C and desorption at 100 °C at 12.5 mbar among all the products obtained. Full article
(This article belongs to the Special Issue Recent Advances in Metal–Organic Frameworks)
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16 pages, 3962 KiB  
Article
[BMIM][X] Ionic Liquids Supported on a Pillared-Layered Metal–Organic Framework: Synthesis, Characterization, and Adsorption Properties
by Yaiza Martín-García, Jesús Tapiador, Gisela Orcajo, Juan Ayala and Ana B. Lago
Molecules 2024, 29(15), 3644; https://doi.org/10.3390/molecules29153644 - 1 Aug 2024
Viewed by 918
Abstract
Combining ionic liquids (ILs) and metal–organic frameworks (MOFs) can be an intriguing opportunity to develop advanced materials with different adsorption capabilities for environmental applications. This study reports the preparation and characterization of a 3D pillared-layered compound, namely, [Zn2(tz)2(bdc)] (CIM91), [...] Read more.
Combining ionic liquids (ILs) and metal–organic frameworks (MOFs) can be an intriguing opportunity to develop advanced materials with different adsorption capabilities for environmental applications. This study reports the preparation and characterization of a 3D pillared-layered compound, namely, [Zn2(tz)2(bdc)] (CIM91), formed by 1,2,4-triazole (Htz) and 1,4-benzenedicarboxylic acid (H2bdc) ligands. Then, various loadings of the water-stable and hydrophobic IL, 1-n-butyl-3-methylimidazolium hexafluorophosphate ([BMIM][PF6]), and the water-soluble 1-n-butyl-3-methylimidazolium chloride ([BMIM][Cl]) were incorporated into CIM91. Detailed characterization by X-ray powder diffraction (XRD), FT-IR spectra, scanning electron microscopy (SEM), Energy dispersive X-ray (EDX) analysis, N2 adsorption measurements, and thermogravimetric analysis confirmed the formation of [BMIM][X]/CIM91 composites and the structural stability of the MOF after the incorporation of the ionic liquids. CO2 adsorption–desorption analysis was experimentally carried out for all the materials at 298 K and 318 K, demonstrating a great enhancement in the CO2 adsorption properties of the sole MOF CIM91, particularly by including [BMIM][PF6] species in its structure with a double isosteric heat of CO2 adsorption. The composites were also tested for the adsorption of methylene blue (MB) dye. The results indicate that the incorporation of [BMIM][X] into CIM91 can substantially modify the adsorption properties of the MOF. The influence of the nature of the [BMIM][X] anions on these properties has also been analyzed. Full article
(This article belongs to the Special Issue Recent Advances in Metal–Organic Frameworks)
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