scholarly journals Controllable Synthesis of Metal-Organic Framework/Polyethersulfone Composites

Crystals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 39
Author(s):  
Xiaomin Guo ◽  
Bin Zheng ◽  
Jinlei Wang
Keyword(s):  
Composite Materials ◽  
Structural Integrity ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Vital Role ◽  
Particle Sizes ◽  
High Porosity ◽  
Controllable Synthesis ◽  
Wide Range ◽  
Metal Organic

Composite materials that contain metal-organic frameworks (MOFs) as a filler and a polymer matrix have attracted attention because they present a combination of high porosity and structural integrity. Phase compatibilities of the MOF and polymer play a vital role in the formation of the composites. In particular, the stiff polymer cannot easily adapt to penetrate into the surface pore of MOF and mainly depends on chemical attractions to form the MOF/polymer composites. We report the synthesis of MOF/polyethersulfone (Young’s modulus = ~2.6 GPa) via different fabrication methods, different MOF types and particle sizes, and different solvents. The formed network structures are robust, monolithic composites with 60% MOF loadings; also, the MOF surface area and porosity were fully preserved. The study explored the formation of the composite between MOF and a stiff polymer and encourages the design of more MOF/polymer composite materials across a wide range of applications.

Metal-Organic Framework Transistors for Dopamine Sensing

2021 ◽  
Author(s):  
Jiajun Song ◽  
Jianzhong Zheng ◽  
Anneng Yang ◽  
Hong Liu ◽  
Zeyu Zhao ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Porosity ◽  
Two Dimensional ◽  
Metal Organic ◽  
Organic Framework

Two-dimensional (2D) conductive metal-organic frameworks (MOFs) can not only inherit the high porosity and tailorability of traditional MOFs but also exhibit unique charge transport properties, offering promising opportunities for applications...

Flexible self-supported metal–organic framework mats with exceptionally high porosity for enhanced separation and catalysis

2018 ◽  
Vol 6 (2) ◽  
pp. 334-341 ◽  
Author(s):  
Huixin Liang ◽  
Xiuling Jiao ◽  
Cheng Li ◽  
Dairong Chen
Keyword(s):  
Water Treatment ◽  
Metal Organic Framework ◽  
Air Purification ◽  
High Porosity ◽  
Wide Range ◽  
Metal Organic ◽  
Organic Framework ◽  
Supported Metal

A wide range of flexible MOF-only mats are prepared and exhibit enhanced performances in water treatment, air purification and catalysis.

scholarly journals Recent Progress on Luminescent Metal-Organic Framework-Involved Hybrid Materials for Rapid Determination of Contaminants in Environment and Food

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 691 ◽  
Author(s):  
Chi-Xuan Yao ◽  
Ning Zhao ◽  
Ji-Chao Liu ◽  
Li-Jun Chen ◽  
Jing-Min Liu ◽  
...  
Keyword(s):  
High Speed ◽  
Rapid Determination ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Functional Materials ◽  
Fluorometric Detection ◽  
High Porosity ◽  
Research Subjects ◽  
Metal Organic ◽  
Harmful Substances

The high speed of contaminants growth needs the burgeoning of new analytical techniques to keep up with the continuous demand for monitoring and legislation on food safety and environmental pollution control. Metal-organic frameworks (MOFs) are a kind of advanced crystal porous materials with controllable apertures, which are self-assembled by organic ligands and inorganic metal nodes. They have the merits of large specific surface areas, high porosity and the diversity of structures and functions. Latterly, the utilization of metal-organic frameworks has attracted much attention in environmental protection and the food industry. MOFs have exhibited great value as sensing materials for many targets. Among many sensing methods, fluorometric sensing is one of the widely studied methods in the detection of harmful substances in food and environmental samples. Fluorometric detection based on MOFs and its functional materials is currently one of the most key research subjects in the food and environmental fields. It has gradually become a hot research direction to construct the highly sensitive rapid sensors to detect harmful substances in the food matrix based on metal-organic frameworks. In this paper, we introduced the synthesis and detection application characteristics (absorption, fluorescence, etc.) of metal-organic frameworks. We summarized their applications in the MOFs-based fluorometric detection of harmful substances in food and water over the past few years. The harmful substances mainly include heavy metals, organic pollutants and other small molecules, etc. On this basis, the future development and possible application of the MOFs have prospected in this review paper.

Flexible metal–organic frameworks for the wavelength-based luminescence sensing of aqueous pH

2018 ◽  
Vol 6 (39) ◽  
pp. 10628-10639 ◽  
Author(s):  
Xiu-Liang Lv ◽  
Lin-Hua Xie ◽  
Bin Wang ◽  
Minjian Zhao ◽  
Yuanjing Cui ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Good Stability ◽  
Structural Flexibility ◽  
High Porosity ◽  
Ph Sensing ◽  
Stimuli Responsive ◽  
Maximum Emission ◽  
Wide Range ◽  
Metal Organic ◽  
Flexible Metal

Two new metal–organic frameworks (MOFs) constructed from carbazole-based ligands showed high porosity, good stability, and reversible structural flexibility, as well as stimuli-responsive fluorescence. It is demonstrated that these MOFs are highly potential in the wide-range quantitative pH sensing by determining the wavelengths of the maximum emission.

scholarly journals Structural and dynamic studies of substrate binding in porous metal–organic frameworks

2017 ◽  
Vol 46 (1) ◽  
pp. 239-274 ◽  
Author(s):  
Timothy L. Easun ◽  
Florian Moreau ◽  
Yong Yan ◽  
Sihai Yang ◽  
Martin Schröder
Keyword(s):  
Small Molecules ◽  
Gas Adsorption ◽  
Specific Binding ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
High Porosity ◽  
Considerable Research ◽  
Wide Range ◽  
Metal Organic ◽  
The Subject

Porous metal–organic frameworks (MOFs) are the subject of considerable research interest because of their high porosity and capability of specific binding to small molecules, thus underpinning a wide range of materials functions such as gas adsorption, separation, drug delivery, catalysis, and sensing.

scholarly journals Synthesis of Stable Hierarchical MIL-101(Cr) with Enhanced Catalytic Activity in the Oxidation of Indene

Catalysts ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 394 ◽  
Author(s):  
Tian Zhao ◽  
Ming Dong ◽  
Ling Yang ◽  
Yuejun Liu
Keyword(s):  
Catalytic Activity ◽  
Hierarchical Structure ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Structural Defects ◽  
Controllable Synthesis ◽  
Phenylphosphonic Acid ◽  
Practical Applications ◽  
Metal Organic ◽  
Dye Molecule

Nowadays, the controllable synthesis of stable hierarchical metal–organic frameworks (MOFs) is very important for practical applications, especially in catalysis. Herein, a well-known chromium–benzenedicarboxylate metal–organic framework, MIL-101(Cr), with a stable hierarchical structure, was produced by using phenylphosphonic acid (PPOA) as a modulator via the hydrothermal method. The presence of phenylphosphonic acid could create structural defects and generate larger mesopores. The synthesized hierarchical MIL-101(Cr) possesses relatively good porosity, and the larger mesopores had widths of 4–10 nm. The hierarchical MIL-101(Cr) showed significant improvement for catalytic activity in the oxidation of indene. Further, the presence of a hierarchical structure could largely enhance large dye molecule uptake properties by impregnating.

Integration of rigid and flexible organic parts for the construction of a homochiral metal–organic framework with high porosity

2015 ◽  
Vol 51 (13) ◽  
pp. 2565-2568 ◽  
Author(s):  
Zhong-Xuan Xu ◽  
Yan-Xi Tan ◽  
Hong-Ru Fu ◽  
Yao Kang ◽  
Jian Zhang
Keyword(s):  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Porosity ◽  
Metal Organic ◽  
Organic Framework

A pair of predesigned proline derivative ligands was used to construct a pair of homochiral metal–organic frameworks with high porosity.

scholarly journals Biomedical Applications of Metal−Organic Frameworks for Disease Diagnosis and Drug Delivery: A Review

Nanomaterials ◽  
2022 ◽  
Vol 12 (2) ◽  
pp. 277
Author(s):  
Miral Al Sharabati ◽  
Rana Sabouni ◽  
Ghaleb A. Husseini
Keyword(s):  
Drug Delivery ◽  
Biomedical Applications ◽  
Chemical Engineering ◽  
Metal Organic Frameworks ◽  
Disease Diagnosis ◽  
Inorganic Materials ◽  
Synthesis Methods ◽  
High Porosity ◽  
Wide Range ◽  
Metal Organic

Metal−organic frameworks (MOFs) are a novel class of porous hybrid organic−inorganic materials that have attracted increasing attention over the past decade. MOFs can be used in chemical engineering, materials science, and chemistry applications. Recently, these structures have been thoroughly studied as promising platforms for biomedical applications. Due to their unique physical and chemical properties, they are regarded as promising candidates for disease diagnosis and drug delivery. Their well-defined structure, high porosity, tunable frameworks, wide range of pore shapes, ultrahigh surface area, relatively low toxicity, and easy chemical functionalization have made them the focus of extensive research. This review highlights the up-to-date progress of MOFs as potential platforms for disease diagnosis and drug delivery for a wide range of diseases such as cancer, diabetes, neurological disorders, and ocular diseases. A brief description of the synthesis methods of MOFs is first presented. Various examples of MOF-based sensors and DDSs are introduced for the different diseases. Finally, the challenges and perspectives are discussed to provide context for the future development of MOFs as efficient platforms for disease diagnosis and drug delivery systems.

scholarly journals Recent progress in environmental applications of metal-organic frameworks

2020 ◽  
Author(s):  
Jianming Liu ◽  
Meichen Chen ◽  
Haohui Cui
Keyword(s):  
Self Assembly ◽  
Pore Space ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Organic Ligands ◽  
Research Progress ◽  
Future Research ◽  
High Porosity ◽  
Metal Organic ◽  
Structural Diversification

Abstract Nanomaterials have aroused the interest of many researchers and become a research hotspot in recent years and metal-organic frameworks (MOFs) included in that are a class of new organic-inorganic hybrid porous materials formed through the self-assembly of organic ligands and inorganic metal ions. MOFs have been attracting increasing attention due to their structural diversification, large specific surface area, high porosity, inerratic pore space framework. These characteristics play their advantages in different fields and make some excellent achievements. This article summarizes the research progress of metal-organic framework in the field of environment especially the remarkable achievements in adsorption and provides a clear help for understanding the research progress and prospects for future research.

scholarly journals Size-Controllable Synthesis of Zeolitic Imidazolate Framework/Carbon Nanotube Composites

Crystals ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 367 ◽  
Author(s):  
Fang Fu ◽  
Bin Zheng ◽  
Lin-Hua Xie ◽  
Huiling Du ◽  
Shuangming Du ◽  
...  
Keyword(s):  
Composite Materials ◽  
Density Functional ◽  
Metal Organic Framework ◽  
Zeolitic Imidazolate Frameworks ◽  
Controllable Synthesis ◽  
Zeolitic Imidazolate Framework ◽  
Nanotube Composites ◽  
Metal Organic ◽  
Micrometer Size ◽  
Novel Applications

Composite materials that combine the unique properties of zeolitic imidazolate frameworks (ZIFs) and carbon nanotubes (CNTs) can give rise to novel applications. Here, ZIF-8/CNT composites were successfully prepared with and without the addition of an agent template. The size of the ZIF-8 crystals in the composite materials was controlled by varying the template, feeding order, and concentration of reactants. Thus, ZIF-8 crystals with a wide variety of sizes (from nano- to micrometer size, which is range that differs by a factor of 10) were obtained, depending on the conditions. This size-controllable synthesis of ZIF-8 was achieved by modifying the number of nucleation sites on the CNTs, as revealed by density functional theory (DFT) calculations. This work provides an efficient method for preparing ZIF-8/CNT composites with controllable size and can pave the way for the synthesis of other metal-organic framework (MOF)/CNT composite materials.

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