A rigid and porous metal-organic frameworks with 1D rhombus channels and double walls: Selective adsorption of CO2 over N2, iodine capture, and fluorescence

2019 ◽  
Vol 102 ◽  
pp. 147-151 ◽  
Author(s):  
Bi-Bo Shi ◽  
Run-Ze Pei ◽  
Ao-Wei Chen ◽  
Ce Wang ◽  
Yang-Min Ma ◽  
...  
2017 ◽  
Vol 46 (28) ◽  
pp. 9022-9029 ◽  
Author(s):  
Zhi-Qiang Liu ◽  
Yue Zhao ◽  
Peng Wang ◽  
Yan-Shang Kang ◽  
Mohammad Azam ◽  
...  

Herein, two porous metal–organic frameworks have been synthesized and their magnetic, fluorescent sensing, and selective adsorption properties have been investigated.


2014 ◽  
Vol 70 (a1) ◽  
pp. C16-C16
Author(s):  
Xiao-Ming Chen

As a new kind of molecular materials composed of metal ions (or clusters) and organic bridging ligands that are interconnected by coordination bonds, porous metal-organic frameworks (MOFs) have many useful characteristics, such as high crystallinity, high porosity, structural diversity, designable frameworks, framework flexibility, as well as unique and modifiable organic pore surface. Therefore, they exhibit very promising potential applications in molecular adsorption/separation, catalysis, and sensors, etc. For example, they can be used for selective adsorption and separation of different gas molecules, such as CO2 and N2, capture of CO2 [2], sensing of small organic molecules and gas molecules, such as O2 and CO2, as well as catalysts and devices for solid-phase microextraction. In this presentation, the design and synthesis, unique pore surface, interesting functionalities will be presented by selected examples, in particular those of metal-azolate frameworks (MAFs) and a few devices useful for practical applications, from our group [1-3]. This work was supported by MoST (973 project) and NSFC.


Nanomaterials ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 722
Author(s):  
Ioanna Christodoulou ◽  
Tom Bourguignon ◽  
Xue Li ◽  
Gilles Patriarche ◽  
Christian Serre ◽  
...  

In recent years, Metal-Organic Frameworks (MOFs) have attracted a growing interest for biomedical applications. The design of MOFs should take into consideration the subtle balance between stability and biodegradability. However, only few studies have focused on the MOFs’ stability in physiological media and their degradation mechanism. Here, we investigate the degradation of mesoporous iron (III) carboxylate MOFs, which are among the most employed MOFs for drug delivery, by a set of complementary methods. In situ AFM allowed monitoring with nanoscale resolution the morphological, dimensional, and mechanical properties of a series of MOFs in phosphate buffer saline and in real time. Depending on the synthetic route, the external surface presented either well-defined crystalline planes or initial defects, which influenced the degradation mechanism of the particles. Moreover, MOF stability was investigated under different pH conditions, from acidic to neutral. Interestingly, despite pronounced erosion, especially at neutral pH, the dimensions of the crystals were unchanged. It was revealed that the external surfaces of MOF crystals rapidly respond to in situ changes of the composition of the media they are in contact with. These observations are of a crucial importance for the design of nanosized MOFs for drug delivery applications.


Author(s):  
Jihyun Lee ◽  
Younghun Kim ◽  
Younghu Son ◽  
Hyehyun Kim ◽  
Yong Nam Choi ◽  
...  

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