An Anionic Interpenetrated Zeolite-Like Metal-Organic Framework Composite As a Tunable Dual-Emission Luminescent Switch for Detecting Volatile Organic Molecules

2016 ◽  
Vol 22 (48) ◽  
pp. 17298-17304 ◽  
Author(s):  
Wei Xie ◽  
Wen-Wen He ◽  
Shun-Li Li ◽  
Kui-Zhan Shao ◽  
Zhong-Min Su ◽  
...  
Keyword(s):  
Organic Molecules ◽  
Metal Organic Framework ◽  
Dual Emission ◽  
Volatile Organic ◽  
Metal Organic ◽  
Organic Framework

A novel fluorescence probe for sensing organic amine vapors from a Eu3+β-diketonate functionalized bio-MOF-1 hybrid system

2015 ◽  
Vol 3 (27) ◽  
pp. 7038-7044 ◽  
Author(s):  
Xiang Shen ◽  
Bing Yan
Keyword(s):  
Hybrid System ◽  
Organic Molecules ◽  
Fluorescence Probe ◽  
Metal Organic Framework ◽  
Organic Amine ◽  
System P ◽  
Volatile Organic ◽  
Metal Organic ◽  
Volatile Amines ◽  
Organic Framework

A classic anionic metal–organic framework (bio-MOF-1) for Eu3+-β-diketonate complex encapsulation has the utility of a sensory material for sensing volatile organic molecules, especially volatile amines.

scholarly journals Volatile Organic Compound Vapour Measurements Using a Localised Surface Plasmon Resonance Optical Fibre Sensor Decorated with a Metal-Organic Framework

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1420
Author(s):  
Chenyang He ◽  
Liangliang Liu ◽  
Sergiy Korposh ◽  
Ricardo Correia ◽  
Stephen P. Morgan
Keyword(s):  
Surface Plasmon Resonance ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Surface Plasmon ◽  
Optical Fibre ◽  
Plasmon Resonance ◽  
Metal Organic Framework ◽  
Volatile Organic ◽  
Metal Organic ◽  
Organic Framework

A tip-based fibreoptic localised surface plasmon resonance (LSPR) sensor is reported for the sensing of volatile organic compounds (VOCs). The sensor is developed by coating the tip of a multi-mode optical fibre with gold nanoparticles (size: 40 nm) via a chemisorption process and further functionalisation with the HKUST-1 metal–organic framework (MOF) via a layer-by-layer process. Sensors coated with different cycles of MOFs (40, 80 and 120) corresponding to different crystallisation processes are reported. There is no measurable response to all tested volatile organic compounds (acetone, ethanol and methanol) in the sensor with 40 coating cycles. However, sensors with 80 and 120 coating cycles show a significant redshift of resonance wavelength (up to ~9 nm) to all tested volatile organic compounds as a result of an increase in the local refractive index induced by VOC capture into the HKUST-1 thin film. Sensors gradually saturate as VOC concentration increases (up to 3.41%, 4.30% and 6.18% in acetone, ethanol and methanol measurement, respectively) and show a fully reversible response when the concentration decreases. The sensor with the thickest film exhibits slightly higher sensitivity than the sensor with a thinner film. The sensitivity of the 120-cycle-coated MOF sensor is 13.7 nm/% (R2 = 0.951) with a limit of detection (LoD) of 0.005% in the measurement of acetone, 15.5 nm/% (R2 = 0.996) with an LoD of 0.003% in the measurement of ethanol and 6.7 nm/% (R2 = 0.998) with an LoD of 0.011% in the measurement of methanol. The response and recovery times were calculated as 9.35 and 3.85 min for acetone; 5.35 and 2.12 min for ethanol; and 2.39 and 1.44 min for methanol. The humidity and temperature crosstalk of 120-cycle-coated MOF was measured as 0.5 ± 0.2 nm and 0.5 ± 0.1 nm in the humidity range of 50–75% relative humidity (RH) and temperature range of 20–25 °C, respectively.

Dye encapsulated zinc-based metal-organic framework as a dual-emission sensor for highly sensitive detection of antibiotics

2021 ◽  
Author(s):  
Kang Wang ◽  
Yuhan Duan ◽  
Jiajing Chen ◽  
Haiying Wang ◽  
Hui-Yan Liu
Keyword(s):  
Self Assembly ◽  
Metal Organic Framework ◽  
Sensitive Detection ◽  
Dual Emission ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Highly Sensitive Detection ◽  
Organic Framework

Self-assembly of two Zn-MOFs, [Zn2L(DMF)3]•H2O•5DMF (1) and [Zn2L(H2O)2]•4H2O•3DMF (2) were achieved with an amide-functionalized tetracarboxylate ligand under similar conditions. Incorporated amide groups make the tetratopic linkers exhibit different configurations, tetrahedron...

scholarly journals A dual emission metal–organic framework for rapid ratiometric fluorescence detection of CO32− in seawater

RSC Advances ◽  
2020 ◽  
Vol 10 (42) ◽  
pp. 24764-24771
Author(s):  
Yu Wei ◽  
Yan Xia
Keyword(s):  
Fluorescence Detection ◽  
Fluorescent Sensor ◽  
Metal Organic Framework ◽  
Ratiometric Fluorescence ◽  
Dual Emission ◽  
Metal Organic ◽  
Organic Framework

A dual emission metal–organic framework (IRMOF-10-Eu) was prepared and used as a ratiometric fluorescent sensor for CO32− detection.

A Multifunctional 3D Chiral Porous Ferroelectric Metal-Organic Framework for Sensing Small Organic Molecules and Dye Uptake

2014 ◽  
Vol 9 (11) ◽  
pp. 3094-3098 ◽  
Author(s):  
Li-Hui Cao ◽  
Yong-Li Wei ◽  
Can Ji ◽  
Ming-Li Ma ◽  
Shuang-Quan Zang ◽  
...  
Keyword(s):  
Organic Molecules ◽  
Metal Organic Framework ◽  
Dye Uptake ◽  
Small Organic Molecules ◽  
Metal Organic ◽  
Organic Framework

scholarly journals A luminescent cationic metal–organic framework featuring [Cu–pyrazolate]3 units for volatile organic compound sensing

2016 ◽  
Vol 45 (43) ◽  
pp. 17087-17090 ◽  
Author(s):  
Charlie E. Kivi ◽  
Datong Song
Keyword(s):  
Organic Compound ◽  
Volatile Organic Compound ◽  
Metal Organic Framework ◽  
Volatile Organic ◽  
Metal Organic ◽  
Organic Framework

A luminescent 3D metal–organic framework for VOC sensing.

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