scholarly journals Encapsulation of an ionic liquid into the nanopores of a 3D covalent organic framework

RSC Advances ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 1697-1700 ◽  
Author(s):  
Yingxiang Xin ◽  
Chang Wang ◽  
Yu Wang ◽  
Jianjun Sun ◽  
Yanan Gao
Keyword(s):  
Ionic Liquid ◽  
Melting Point ◽  
Three Dimensional ◽  
Covalent Organic Framework ◽  
Organic Framework

An ionic liquid [Emim][Tf2N] confined into the nanopores of three-dimensional COF-320 demonstrated an increased melting point.

A Three-Dimensional Tetraphenylethylene-Based Fluorescence Covalent Organic Framework for Molecular Recognition

2020 ◽  
Author(s):  
Junxia Ren ◽  
Yaozu Liu ◽  
Xin Zhu ◽  
Yangyang Pan ◽  
Yujie Wang ◽  
...  
Keyword(s):  
Molecular Recognition ◽  
Fluorescence Probe ◽  
Three Dimensional ◽  
Hazardous Substances ◽  
Covalent Organic Framework ◽  
Highly Sensitive ◽  
Volatile Organic ◽  
Polycyclic Aromatic ◽  
Better Than ◽  
Organic Framework

<p><a></a><a></a><a></a><a></a><a></a><a></a><a></a><a>The development of highly-sensitive recognition of </a><a></a><a></a><a></a><a></a><a>hazardous </a>chemicals, such as volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs), is of significant importance because of their widespread social concerns related to environment and human health. Here, we report a three-dimensional (3D) covalent organic framework (COF, termed JUC-555) bearing tetraphenylethylene (TPE) side chains as an aggregation-induced emission (AIE) fluorescence probe for sensitive molecular recognition.<a></a><a> </a>Due to the rotational restriction of TPE rotors in highly interpenetrated framework after inclusion of dimethylformamide (DMF), JUC-555 shows impressive AIE-based strong fluorescence. Meanwhile, owing to the large pore size (11.4 Å) and suitable intermolecular distance of aligned TPE (7.2 Å) in JUC-555, the obtained material demonstrates an excellent performance in the molecular recognition of hazardous chemicals, e.g., nitroaromatic explosives, PAHs, and even thiophene compounds, via a fluorescent quenching mechanism. The quenching constant (<i>K</i><sub>SV</sub>) is two orders of magnitude better than those of other fluorescence-based porous materials reported to date. This research thus opens 3D functionalized COFs as a promising identification tool for environmentally hazardous substances.</p>

Highly efficient CO2 capture by mixed matrix membranes containing three-dimensional covalent organic framework fillers

2019 ◽  
Vol 7 (9) ◽  
pp. 4549-4560 ◽  
Author(s):  
Youdong Cheng ◽  
Linzhi Zhai ◽  
Yunpan Ying ◽  
Yuxiang Wang ◽  
Guoliang Liu ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Three Dimensional ◽  
Mixed Matrix Membranes ◽  
Mixed Matrix ◽  
Covalent Organic Framework ◽  
Highly Efficient ◽  
Organic Framework ◽  
Matrix Membranes

A three-dimensional covalent organic framework filler with size-selective pores has been proven effective in boosting the membrane CO2 capture performance.

scholarly journals 3D Cage COFs: A Dynamic Three-Dimensional Covalent Organic Framework with High-Connectivity Organic Cage Nodes

2020 ◽  
Vol 142 (39) ◽  
pp. 16842-16848 ◽  
Author(s):  
Qiang Zhu ◽  
Xue Wang ◽  
Rob Clowes ◽  
Peng Cui ◽  
Linjiang Chen ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Covalent Organic Framework ◽  
High Connectivity ◽  
Organic Framework

A novel crystalline azine-linked three-dimensional covalent organic framework for CO2 capture and conversion

2019 ◽  
Vol 55 (83) ◽  
pp. 12459-12462 ◽  
Author(s):  
Pengxin Guan ◽  
Jikuan Qiu ◽  
Yuling Zhao ◽  
Huiyong Wang ◽  
Zhiyong Li ◽  
...  
Keyword(s):  
Co2 Capture ◽  
Three Dimensional ◽  
Excellent Performance ◽  
Covalent Organic Framework ◽  
Organic Framework

A novel crystalline azine-linked three-dimensional covalent organic framework was rationally synthesized and exhibited excellent performance in CO2 adsorption and conversion.

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