scholarly journals Metal-Organic Frameworks for Advanced Transducers based Gas Sensors: Review and Perspectives

2022 ◽  
Author(s):  
Sanjit Manohar Majhi ◽  
Ashraf Ali ◽  
Prabhakar Rai ◽  
Yaser Greish ◽  
Ahmed Alzamly ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Gas Sensors ◽  
Gas Sensing ◽  
Metal Organic Frameworks ◽  
The Past ◽  
Volatile Organic ◽  
Metal Organic

The development of gas sensing devices to detect environmentally toxic, hazardous, and volatile organic compounds (VOCs) has witnessed a surge of immense interest over the past few decades, motivated mainly...

scholarly journals Silver Enhances Hematite Nanoparticles Based Ethanol Sensor Response and Selectivity at Room Temperature

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 440
Author(s):  
Daniel Garcia-Osorio ◽  
Pilar Hidalgo-Falla ◽  
Henrique E. M. Peres ◽  
Josue M. Gonçalves ◽  
Koiti Araki ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Gas Sensors ◽  
Room Temperature ◽  
Gas Sensing ◽  
Ethanol Vapor ◽  
Oxide Semiconductor ◽  
Charge Carrier Density ◽  
Ethanol Sensor ◽  
Volatile Organic

Gas sensors are fundamental for continuous online monitoring of volatile organic compounds. Gas sensors based on semiconductor materials have demonstrated to be highly competitive, but are generally made of expensive materials and operate at high temperatures, which are drawbacks of these technologies. Herein is described a novel ethanol sensor for room temperature (25 °C) measurements based on hematite (α‑Fe2O3)/silver nanoparticles. The AgNPs were shown to increase the oxide semiconductor charge carrier density, but especially to enhance the ethanol adsorption rate boosting the selectivity and sensitivity, thus allowing quantification of ethanol vapor in 2–35 mg L−1 range with an excellent linear relationship. In addition, the α-Fe2O3/Ag 3.0 wt% nanocomposite is cheap, and easy to make and process, imparting high perspectives for real applications in breath analyzers and/or sensors in food and beverage industries. This work contributes to the advance of gas sensing at ambient temperature as a competitive alternative for quantification of conventional volatile organic compounds.

Ag-Functionalized macro-/mesoporous AZO synthesized by solution combustion for VOCs gas sensing application

RSC Advances ◽  
2016 ◽  
Vol 6 (103) ◽  
pp. 101304-101312 ◽  
Author(s):  
Xinxin Xing ◽  
Yuxiu Li ◽  
Dongyang Deng ◽  
Nan Chen ◽  
Xu Liu ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Gas Sensors ◽  
Gas Sensing ◽  
Solution Combustion ◽  
Highly Sensitive ◽  
Volatile Organic ◽  
Sensing Application

The aim of this paper is to develop easily manufactured and highly sensitive gas sensors for VOCs (volatile organic compounds) detection.

Influence of Alkalinization Over Metal Organic Frameworks MIL-100(Fe) for Enhanced Volatile Organic Compounds (VOCs) Adsorbents

2021 ◽  
Vol 21 (11) ◽  
pp. 5510-5521
Author(s):  
Xinyu Xie ◽  
Joy Thomas ◽  
Chang-Tang Chang ◽  
Hong Tao
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Metal Organic Frameworks ◽  
Research Work ◽  
Rate Limiting Step ◽  
Gas Phase Adsorption ◽  
Volatile Organic ◽  
Metal Organic ◽  
To Come ◽  
Pressure Swing

Substantial attempts have been undertaken for the improvement of the air quality over decades; and Volatile Organic Compounds (VOCs) from the chemical and textile industries are truly listed as severe issue to be controlled. To come up with modus operandi for this issue, a novel composite of metal organic frameworks (MOFs) MIL-100(Fe) with salient tuned features of natrite was designed by a green and facile method. Mineralized composite MOFs exhibited enhanced crystallinity than pure MIL-100(Fe) as well showcased a higher surface area of 1300 m2 g−1. Through dynamic acetone pressure swing adsorption setup, MIL-0.05Na (MIL-100(Fe) synthesized with 0.05 mM Na2CO3 solution) revealed an enhanced acetone adsorption of 210 mg g 1 at room temperature. Gas phase adsorption isotherms confirmed the mono layer adsorption behavior. The kinetics models evaluated that the external mass transfer was the rate limiting step for surface adsorption. The thermodynamic study manifested that the adsorption reaction was spontaneous and exothermic. The proposed mechanism of adsorption was the act of physisorption which enriched the adsorbents reusability. This research work provides a futuristic vista to design mineralized Fe-MOFs composites for an energy saving adsorbents for VOCs removal.

Characterization of Piezoresistive Microcantilever Sensors with Metal Organic Frameworks for the Detection of Volatile Organic Compounds

2013 ◽  
Vol 50 (12) ◽  
pp. 469-476 ◽  
Author(s):  
I. Ellern ◽  
A. Venkatasubramanian ◽  
J. H. Lee ◽  
P. J. Hesketh ◽  
V. Stavilla ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Metal Organic Frameworks ◽  
Microcantilever Sensors ◽  
Volatile Organic ◽  
Metal Organic

Solar-light-triggered regenerative adsorption removal of styrene by silver nanoparticles incorporated metal–organic frameworks

2021 ◽  
Author(s):  
Hongli Liu ◽  
Mingjie Xu ◽  
Guiying Li ◽  
Weiping Zhang ◽  
Taicheng An
Keyword(s):  
Silver Nanoparticles ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Metal Organic Frameworks ◽  
Solar Light ◽  
P Adsorption ◽  
Adsorption Removal ◽  
Volatile Organic ◽  
Metal Organic

Adsorption is an attractive technique for the removal of volatile organic compounds (VOCs) from polluted air, yet it is still challenging to efficiently release the adsorbed VOCs. Herein, a consideration...

scholarly journals Nanoporous MIL-101(Cr) as a sensing layer coated on a quartz crystal microbalance (QCM) nanosensor to detect volatile organic compounds (VOCs)

RSC Advances ◽  
2019 ◽  
Vol 9 (42) ◽  
pp. 24460-24470 ◽  
Author(s):  
Elahe Haghighi ◽  
Sedigheh Zeinali
Keyword(s):  
Volatile Organic Compounds ◽  
Surface Area ◽  
Organic Compounds ◽  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Metal Organic Frameworks ◽  
Volatile Organic ◽  
Metal Organic

Metal–organic frameworks can be used as sensing layer in QCM fabrication because of their huge surface area.

Highly Hydrophobic Isoreticular Porous Metal-Organic Frameworks for the Capture of Harmful Volatile Organic Compounds

2013 ◽  
Vol 52 (32) ◽  
pp. 8290-8294 ◽  
Author(s):  
Natalia M. Padial ◽  
Elsa Quartapelle Procopio ◽  
Carmen Montoro ◽  
Elena López ◽  
J. Enrique Oltra ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Metal Organic Frameworks ◽  
Porous Metal ◽  
Volatile Organic ◽  
Metal Organic ◽  
Highly Hydrophobic
Sign in / Sign up

Export Citation Format

Share Document