scholarly journals Study on preparation of metal-organic framework membrane and pore size adjustment method

2021 ◽  
Vol 257 ◽  
pp. 01018
Author(s):  
Hui Yang ◽  
Jiaqi Zhang ◽  
Huan He

Metal-organic framework materials have the advantages of large specific surface area, high porosity, strong adjustability of framework structure, adjustable chemical and thermal properties, etc., and can be used as ideal membrane materials. In this paper, the preparation methods and conditions of several common metal-organic framework materials, as well as how to adjust the pore size, are reviewed, and the advanced membrane treatment technology is prospected.

Author(s):  
Mengjie Li ◽  
Guangyao Zhang ◽  
Andrews Boakye ◽  
Huining Chai ◽  
Lijun Qu ◽  
...  

In the face of complex environments, considerable effort has been made to accomplish sensitive, accurate and highly-effective detection of target analytes. Given the versatility of metal clusters and ligands, high porosity and large specific surface area, metal–organic framework (MOF) provides researchers with prospective solutions for the construction of biosensing platforms. Combined with the benefits of electrochemistry method such as fast response, low cost and simple operation, the untapped applications of MOF for biosensors are worthy to be exploited. Therefore, this review briefly summarizes the preparation methods of electroactive MOF, including synthesize with electroactive ligands/metal ions, functionalization of MOF with biomolecules and modification for MOF composites. Moreover, recent biosensing applications are highlighted in terms of small biomolecules, biomacromolecules, and pathogenic cells. We conclude with a discussion of future challenges and prospects in the field. It aims to offer researchers inspiration to address the issues appropriately in further investigations.


Author(s):  
Jiajun Song ◽  
Jianzhong Zheng ◽  
Anneng Yang ◽  
Hong Liu ◽  
Zeyu Zhao ◽  
...  

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...


2017 ◽  
Vol 46 (47) ◽  
pp. 16381-16386 ◽  
Author(s):  
Chengliang Xiao ◽  
Mark A. Silver ◽  
Shuao Wang

137Cs, 90Sr, 238U, 79Se, and 99Tc sequestrations from aqueous solution by metal–organic framework materials are summarized in this Frontier article.


2021 ◽  
Author(s):  
Yong-Mei Wang ◽  
Xinxin Zhang ◽  
Dingyi Yang ◽  
Liting Wu ◽  
Jiaojiao Zhang ◽  
...  

Abstract The high porosity, controllable size, high surface area, and chemical versatility of a metal-organic framework (MOF) enable it a good material for a triboelectric nanogenerator (TENG), and some MOFs have been incorporated in the fabrication of TENGs. However, the understanding of effects of MOFs on the energy conversion of a TENG is still lacking, which inhibits the improvement of the performance of MOF-based TENGs. Here, UiO-66-NH2 MOFs were found to significantly increase the power of a TENG and the mechanism was carefully examined. The electron-withdrawing ability of Zr-based UiO-66-family MOFs was enhanced by designing the amino functionalized 1,4-terephthalic acid (1,4-BDC) as ligand. The chemically modified UiO-66-NH2 was found to increase the surface roughness and surface potential of a composite film with MOFs embedded in polydimethylsiloxane (PDMS) matrix. Thus the total charges due to the contact electrification increased significantly. The composite-based TENG was found to be very durable and its output voltage and current were 4 times and 60 times higher than that of a PDMS-based TENG. This work revealed an effective strategy to design MOFs with excellent electron-withdrawing abilities for high-performance TENGs.


2014 ◽  
Vol 26 (13) ◽  
pp. 133002 ◽  
Author(s):  
Sebastian Zuluaga ◽  
Pieremanuele Canepa ◽  
Kui Tan ◽  
Yves J Chabal ◽  
Timo Thonhauser

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