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Metal–Organic Framework-Based Materials: Chemical Synthesis and Applications

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

Deadline for manuscript submissions: 31 July 2024 | Viewed by 1038

Special Issue Editors


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Guest Editor
Institute of Intelligent Manufacturing Technology, Shenzhen Polytechnic, Shenzhen 518055, China
Interests: metal-organic frameworks; catalysts; micro-nano motors/robots; porous materials; biomimetic mineralization

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Guest Editor
State Key Laboratory of Photoelectric Technology and Functional Materials, International Collaborative Center on Photoelectric Technology and Nano Functional Materials, Institute of Photonics & Photon-Technology, Northwest University, Xi'an, China
Interests: sub-nanometer cluster materials; porous materials; heterogeneous catalysis

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Guest Editor
MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
Interests: porous materials (zeolite molecular sieves; mesoporous materials; metal-organic porous materials); heterogeneous catalysis
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Special Issue Information

Dear Colleagues,

Porous metal–organic frameworks (MOFs), which are assembled by organic ligands and metal nodes (ions or clusters) with coordination bonds, have been widely studied over the past several decades due to their huge specific surface area (1000-10000 m2 /g), high crystallinity and, more importantly, tailored-to-application structural tuneability. Originating from the unique metal–organic crystal structure, MOFs not only possess metal activity, but also have the flexibility of organic ligands and other physical and chemical properties, as well as special pore structures. Under the synergy of these favorable factors, MOFs are endowed with excellent gas adsorption or separation capabilities, excellent catalytic activity, good antibacterial properties, low cytotoxicity, and sensitive sensing, making MOFs suitable candidates in the fields of adsorption separation, energy storage, catalysis, biomedicine, etc. Since MOF materials were first reported in 1990, more than 20,000 different MOFs have been synthesized in just over 30 years. MOFs with different structures can be obtained by controlling the molar ratio of ligands to metal ions and the reaction conditions. Based on the understanding of the structure and the prospects of broad applications, researchers have developed various synthetic strategies. This Special Issue focuses on advances in metal–organic framework-based materials, especially their chemical synthesis and applications.

Dr. Xiaolin Li
Dr. Kunyue Leng
Prof. Dr. Yinyong Sun
Guest Editors

Manuscript Submission Information

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Keywords

  • metal–organic frameworks
  • porous materials
  • chemical synthesis
  • applications
  • specific surface area
  • structure–activity relationship

Published Papers (1 paper)

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Research

16 pages, 3514 KiB  
Article
Graphitic Carbon Nitride/MOFs Hybrid Composite as Highly Selective and Sensitive Electrodes for Calcium Ion Detection
by Ahmed S. Abou-Elyazed, Shilin Li, Gehad G. Mohamed, Xiaolin Li, Jing Meng and Safa S. EL-Sanafery
Molecules 2023, 28(24), 8149; https://doi.org/10.3390/molecules28248149 - 18 Dec 2023
Viewed by 690
Abstract
The metal–organic framework (MOF) is a class of materials that exhibits a notable capacity for electron transfer. This unique framework design offers potential applications in various fields, including catalysis, gas storage, and sensing. Herein, we focused on a specific type of MOF called [...] Read more.
The metal–organic framework (MOF) is a class of materials that exhibits a notable capacity for electron transfer. This unique framework design offers potential applications in various fields, including catalysis, gas storage, and sensing. Herein, we focused on a specific type of MOF called Ti-MOF. To enhance its properties and functionality, the composite material was prepared by incorporating graphitic carbon nitride (g-C3N4) into the Ti-MOF structure. This composite, known as g-C3N4@Ti-MOF, was selected as the active material for ion detection, specifically targeting calcium ions (Ca2+). To gain a comprehensive understanding of the structural and chemical properties of the g-C3N4@Ti-MOF composite, several analytical techniques were employed to characterize the prepared g-C3N4@Ti-MOF composite, including X-ray diffraction (XRD), SEM-EDX, and FT-IR. For comparison, different pastes were prepared by mixing Ti-MOF or g-C3N4@Ti-MOF, graphite, and o-NPOE as a plasticizer. The divalent Nernstian responses of the two best electrodes, I and II, were 28.15 ± 0.47 and 29.80 ± 0.66 mV decade−1, respectively, with concentration ranges of 1 µM–1 mM and 0.1 µM–1 mM with a content 1.0 mg Ti-MOF: 250 mg graphite: 0.1 mL o-NPOE and 0.5 mg g-C3N4@Ti-MOF: 250 mg graphite: 0.1 mL o-NPOE, respectively. The electrodes showed high sensitivity and selectivity for Ca2+ ions over different species. The suggested electrodes have been successfully employed for Ca2+ ion measurement in various real samples with excellent precision (RSD = 0.74–1.30%) and accuracy (recovery = 98.5–100.2%), and they exhibited good agreement with the HPLC. Full article
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