In Situ Generation of Regularly Ordered 2D Ultrathin Covalent Organic Framework Films for Highly Sensitive Photoelectrochemical Bioanalysis

2020 ◽  
Vol 12 (41) ◽  
pp. 47090-47098
Author(s):  
Tingting Liu ◽  
Lin Cui ◽  
Huijuan Zhao ◽  
Xiaomei Zhang
Keyword(s):  
Covalent Organic Framework ◽  
Highly Sensitive ◽  
In Situ Generation ◽  
Organic Framework

Predesigned Metal-Anchored Building Block for In Situ Generation of Pd Nanoparticles in Porous Covalent Organic Framework: Application in Heterogeneous Tandem Catalysis

2017 ◽  
Vol 9 (15) ◽  
pp. 13785-13792 ◽  
Author(s):  
Mohitosh Bhadra ◽  
Himadri Sekhar Sasmal ◽  
Arghya Basu ◽  
Siba P. Midya ◽  
Sharath Kandambeth ◽  
...  
Keyword(s):  
Building Block ◽  
Pd Nanoparticles ◽  
Tandem Catalysis ◽  
Covalent Organic Framework ◽  
In Situ Generation ◽  
Organic Framework

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>

In situ assembly of a covalent organic framework composite membrane for dye separation

2021 ◽  
Vol 628 ◽  
pp. 119216
Author(s):  
Yawen Zhang ◽  
Hanchen Ye ◽  
Dongyun Chen ◽  
Najun Li ◽  
Qingfeng Xu ◽  
...  
Keyword(s):  
Composite Membrane ◽  
Covalent Organic Framework ◽  
Organic Framework

In situ room-temperature rapidly fabricated imine-linked covalent organic framework coated fibers for efficient solid-phase microextraction of pyrethroids

2021 ◽  
pp. 338886
Author(s):  
Qidong Yu ◽  
Wende Ma ◽  
Wenmin Zhang ◽  
Hui Chen ◽  
Qingqing Ding ◽  
...  
Keyword(s):  
Solid Phase Microextraction ◽  
Room Temperature ◽  
Solid Phase ◽  
Covalent Organic Framework ◽  
Organic Framework

Covalent organic framework-based ultrathin crystalline porous film: manipulating uniformity of fluoride distribution for stabilizing lithium metal anode

2020 ◽  
Vol 8 (6) ◽  
pp. 3459-3467 ◽  
Author(s):  
Zedong Zhao ◽  
Wuji Chen ◽  
Sarawoot Impeng ◽  
Mengxiong Li ◽  
Rong Wang ◽  
...  
Keyword(s):  
Porous Film ◽  
Lithium Metal ◽  
Metal Anode ◽  
Covalent Organic Framework ◽  
Lithium Metal Anode ◽  
Fluoride Distribution ◽  
Organic Framework

In situ formed LiF grains are confined and evenly distributed throughout a covalent organic framework (COF) film, which exhibits cooperative effectiveness to greatly stabilize the lithium metal.

Facile synthesis of a covalent organic framework (COF) based on the reaction of melamine and trimesic acid incorporated electrospun nanofiber and its application as an electrochemical tyrosinamide aptasensor

2020 ◽  
Vol 44 (35) ◽  
pp. 14922-14927
Author(s):  
Masoumeh Sarabaegi ◽  
Mahmoud Roushani ◽  
Hadi Hosseini ◽  
S. Jafar Hoseini ◽  
Mehrangiz Bahrami
Keyword(s):  
Sensitive Detection ◽  
Electrospun Nanofiber ◽  
Facile Synthesis ◽  
Redox Probe ◽  
Covalent Organic Framework ◽  
Trimesic Acid ◽  
Highly Sensitive ◽  
Highly Sensitive Detection ◽  
Organic Framework

Schematic presentation of the COFCNF platform for the highly sensitive detection of tyrosinamide by using a solution containing [Fe(CN)6]3−/[Fe(CN)6]4− as a redox probe.

Surface growth of highly oriented covalent organic framework thin film with enhanced photoresponse speed

RSC Advances ◽  
2015 ◽  
Vol 5 (112) ◽  
pp. 92573-92576 ◽  
Author(s):  
Ying Chen ◽  
Haijun Cui ◽  
Jianqi Zhang ◽  
Kun Zhao ◽  
Defang Ding ◽  
...  
Keyword(s):  
Thin Film ◽  
Surface Growth ◽  
Covalent Organic Framework ◽  
Growth Method ◽  
Organic Framework

An oriented photoconductive COF film was synthesized byin situgrowth method.

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