Two mesoporous anionic metal-organic frameworks for selective and efficient adsorption of cationic organic dye

2021 ◽  
Author(s):  
Yu Gao ◽  
Yuzhu Li ◽  
Chen Liang ◽  
Peipei Cen ◽  
Jing Xi ◽  
...  
Keyword(s):  
Electrostatic Interactions ◽  
Organic Molecules ◽  
Metal Organic Frameworks ◽  
Organic Dye ◽  
Large Impact ◽  
Metal Organic

Anionic metal-organic frameworks (MOFs) are beginning to have a large impact in the field of absorption and separation of ionic organic molecules due to the enhanced electrostatic interactions between their...

H2Adsorption in Metal-Organic Frameworks: Dispersion or Electrostatic Interactions?

2008 ◽  
Vol 14 (22) ◽  
pp. 6597-6600 ◽  
Author(s):  
Agnieszka Kuc ◽  
Thomas Heine ◽  
Gotthard Seifert ◽  
Hélio A. Duarte
Keyword(s):  
Electrostatic Interactions ◽  
Metal Organic Frameworks ◽  
Metal Organic

scholarly journals A Sm-MOF/GO nanocomposite membrane for efficient organic dye removal from wastewater

RSC Advances ◽  
2020 ◽  
Vol 10 (14) ◽  
pp. 8540-8547 ◽  
Author(s):  
Guohai Yang ◽  
Daqing Zhang ◽  
Gen Zhu ◽  
Tingrong Zhou ◽  
Manting Song ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Dye Removal ◽  
Metal Organic Frameworks ◽  
Organic Dye ◽  
Nanocomposite Membrane ◽  
Graphene Oxide Nanosheets ◽  
Metal Organic

A nanocomposite membrane composed of samarium metal-organic frameworks and graphene oxide nanosheets was fabricated for organic dye removal.

scholarly journals Crystal Structure Dependence of the Energy Transfer from Tb(III) to Yb(III) in Metal–Organic Frameworks Based in Bispyrazolylpyridines

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 69 ◽  
Author(s):  
Paloma Martinez-Martin ◽  
Josefina Perles ◽  
Juan Carlos Rodriguez-Ubis
Keyword(s):  
Crystal Structure ◽  
Energy Transfer ◽  
Organic Molecules ◽  
Metal Organic Frameworks ◽  
Structure Dependence ◽  
Characteristic Emission ◽  
Metal Organic ◽  
Lanthanide Metal ◽  
Coordinated Water ◽  
Luminescent Behavior

Luminescent mixed lanthanide metal−organic framwork (MOF) materials have been prepared from two polyheterocyclic diacid ligands, 2,6-bis(3-carboxy-1-pyrazolyl)pyridine and 2,6-bis(4-carboxy-1-pyrazolyl)pyridine. The crystal structures of the two organic molecules are presented together with the structures for the MOFs obtained by hydrothermal synthesis either with Yb(III) or mixed Tb(III)/Yb(III) ions. Different coordination architectures result from each ligand, revealing also important differences between the lanthanides. The mixed lanthanide metal−organic frameworks also present diverse luminescent behavior; in the case of 2,6-bis(4-carboxy-1-pyrazolyl)pyridine, where no coordinated water is present in the metal environment, Tb(III) and Yb(III) characteristic emission is observed by excitation of the bispyrazolylpyridine chromophore.

scholarly journals Flow-dependent separation selectivity for organic molecules on metal–organic frameworks containing adsorbents

2016 ◽  
Vol 52 (30) ◽  
pp. 5301-5304 ◽  
Author(s):  
Anton Peristyy ◽  
Pavel N. Nesterenko ◽  
Anita Das ◽  
Deanna M. D'Alessandro ◽  
Emily F. Hilder ◽  
...  
Keyword(s):  
Flow Rate ◽  
Mobile Phase ◽  
Organic Molecules ◽  
Metal Organic Frameworks ◽  
Phase Flow ◽  
Mobile Phase Flow Rate ◽  
Separation Selectivity ◽  
Metal Organic

A new effect was discovered which allows changes of selectivity by variation of the mobile phase flow rate.

Clicked Isoreticular Metal-Organic Frameworks and Their High Performance in the Selective Capture and Separation of Large Organic Molecules

2015 ◽  
Vol 54 (43) ◽  
pp. 12748-12752 ◽  
Author(s):  
Pei-Zhou Li ◽  
Xiao-Jun Wang ◽  
Si Yu Tan ◽  
Chung Yen Ang ◽  
Hongzhong Chen ◽  
...  
Keyword(s):  
High Performance ◽  
Organic Molecules ◽  
Metal Organic Frameworks ◽  
Metal Organic

scholarly journals Harnessing Electrostatic Interactions for Enhanced Conductivity in Metal-Organic Frameworks

Research ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
An-An Zhang ◽  
Xiyue Cheng ◽  
Xu He ◽  
Wei Liu ◽  
Shuiquan Deng ◽  
...  
Keyword(s):  
Electrostatic Interaction ◽  
Electrostatic Interactions ◽  
Metal Organic Frameworks ◽  
Electron Conduction ◽  
Guest Molecules ◽  
Type Semiconductor ◽  
Metal Organic ◽  
Application Potential ◽  
Enhanced Conductivity

The poor electrical conductivity of metal-organic frameworks (MOFs) has been a stumbling block for its applications in many important fields. Therefore, exploring a simple and effective strategy to regulate the conductivity of MOFs is highly desired. Herein, anionic guest molecules are incorporated inside the pores of a cationic MOF (PFC-8), which increases its conductivity by five orders of magnitude while maintaining the original porosity. In contrast, the same operation in an isoreticular neutral framework (PFC-9) does not bring such a significant change. Theoretical studies reveal that the guest molecules, stabilized inside pores through electrostatic interaction, play the role of electron donors as do in semiconductors, bringing in an analogous n-type semiconductor mechanism for electron conduction. Therefore, we demonstrate that harnessing electrostatic interaction provides a new way to regulate the conductivity of MOFs without necessarily altering the original porous structure. This strategy would greatly broaden MOFs’ application potential in electronic and optoelectronic technologies.

scholarly journals Fluorinated Organic Porous Materials

2019 ◽  
Vol 01 (01) ◽  
pp. 019-029 ◽  
Author(s):  
Zhenglin Zhang ◽  
Ognjen Š. Miljanić
Keyword(s):  
Porous Materials ◽  
Organic Molecules ◽  
Metal Organic Frameworks ◽  
Molecular Crystals ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Metal Organic ◽  
Physical And Chemical ◽  
And Chemical Properties

Fluorine is in many aspects unique among the elements, and its incorporation into organic molecules can dramatically change their physical and chemical properties. This minireview will survey the existing classes of fluorinated porous materials, with a particular focus on all-organic porous materials. We will highlight our work on the preparation and study of metal–organic frameworks and porous molecular crystals derived from extensively fluorinated rigid aromatic pyrazoles and tetrazoles. Where possible, comparisons between fluorinated and nonfluorinated materials will be made.

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