scholarly journals Identifying Sources of Volatile Organic Compounds and Aldehydes in a High Performance Building

2010 ◽  
Author(s):  
Anna C. Ortiz ◽  
Marion Russell ◽  
Wen-Yee Lee ◽  
Michael Apte ◽  
Randy Maddalena
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
High Performance ◽  
Volatile Organic ◽  
High Performance Building

Hollow spheres of CoCr2O4–Cr2O3 mixed oxides with nanoscale heterojunctions for exclusive detection of indoor xylene

2018 ◽  
Vol 6 (40) ◽  
pp. 10767-10774 ◽  
Author(s):  
Bo-Young Kim ◽  
Ji-Won Yoon ◽  
Kyeorei Lim ◽  
Sung Hyun Park ◽  
Ji-Wook Yoon ◽  
...  
Keyword(s):  
Air Quality ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
High Performance ◽  
Catalytic Effect ◽  
Mixed Oxides ◽  
Hollow Spheres ◽  
Volatile Organic ◽  
Ppm Level

Ultrahigh selectivity and response to sub-ppm-level of p-xylene was achieved using CoCr2O4–Cr2O3 spheres. The unique catalytic effect and nanoscale heterojunction of CoCr2O4 and Cr2O3 provide a strategy to design high performance volatile organic compounds sensors for monitoring air quality.

scholarly journals Synthesis of polyurethanes with low volatile organic compounds content for upholstery and automotive articles

2020 ◽  
Author(s):  
Anna Bacardit ◽  
Silvia Sorolla ◽  
Concepcio Casas ◽  
Lluis Olle ◽  
Mireia Conde
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
High Performance ◽  
Color Change ◽  
Research Work ◽  
Pilot Scale ◽  
Long Term Effects ◽  
Minimal Impact ◽  
Volatile Organic ◽  
Pilot Scale Reactor

The manufacture of upholstery and automotive articles is linked to the release of Volatile Organic Compounds (hereinafter VOCs) during their manufacture, which have short and long-term effects on the health of users and the environment. In the leather sector, around 40 kg of VOCs are generated per 1000 kg of raw skin. This research work has focused on the synthesis of new and more sustainable urethane-based polymers that, in turn, allow the quality requirements of the finish to be met, which vary depending on the leather article manufactured. The main objective of the study is to minimize the content of VOCs in the different aliphatic polyurethanes synthesized in a pilot-scale reactor, making small modifications to the synthesis formulations. The synthesis route developed is based on the preparation of polymers of ionomeric polyurethanes and their subsequent dispersion in water. In the synthesis processes developed, the content of coalescing solvents and neutralizing agents, which directly contribute to the concentration of VOCs of the urethane polymers, is eliminated and / or minimized as much as possible. The new urethane-based polymers obtained have been analyzed according to the parameters of pH, viscosity, density and percentage of solids in the resin. Likewise, organoleptic tests (color, transparency, hardness, touch and tacking) and physical tests (tensile strength, water absorption, hardness and color change at 100°C for 24 hours) have been carried out on the film corresponding to each synthesized polyurethane resin. These products will be introduced in finishing formulations designed to obtain high-performance upholstery and automotive leather with minimal impact in terms of VOC content at the pilot level. Tests of fastness and physical resistance have been carried out to evaluate the performance of these leathers.

scholarly journals Study on mesoporous catalysts for oxidation of volatile organic compounds

2022 ◽  
Vol 355 ◽  
pp. 01030
Author(s):  
Xianqiang Ran
Keyword(s):  
Volatile Organic Compounds ◽  
Catalytic Oxidation ◽  
Organic Compounds ◽  
High Performance ◽  
Oxidation Process ◽  
Dominant Role ◽  
Active Components ◽  
Mesoporous Catalysts ◽  
Volatile Organic ◽  
Noble Metal Oxides

Volatile organic compounds (VOCs) emitted from many industrial processes, are harmful to human health and the atmsphere. Several technologies are currently used to eliminate VOCs from the environment. Among them, catalytic oxidation has been recognized as one of the most efficient and promising ways to treatment VOCs. So high performance oxidants play an dominant role in the catalytic oxidation process. In this work, we discussed many researchers’ works about preparation and effect of their catalysts, kinds of mesoporous catalysts for eliminating VOCs were reviewed, the active components of the catalysts are noble and non-noble metal oxides, which loaded in the mesochannels of mesoporous materials including silica, titania and aluminia.

scholarly journals Detection of volatile organic compounds: From chemical gas sensors to terahertz spectroscopy

2021 ◽  
Vol 40 (1) ◽  
pp. 33-57
Author(s):  
Vardan Galstyan ◽  
Annalisa D’Arco ◽  
Marta Di Fabrizio ◽  
Nicola Poli ◽  
Stefano Lupi ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Gas Sensors ◽  
High Performance ◽  
Gas Sensing ◽  
Terahertz Spectroscopy ◽  
Monitoring Systems ◽  
Exhaled Breath ◽  
Volatile Organic ◽  
Chemiresistive Gas Sensors

Abstract Volatile organic compounds are released by different sources causing air pollution. Moreover, some of these carbon-based organic chemicals are considered as biomarkers in the exhaled breath of individuals and can be used to identify various kinds of diseases. Hence, the increasing demand to control air quality and human health has promoted the development of monitoring systems based on high-performance gas sensing structures. This review highlights the achievements in sensing technologies for the detection of volatile organic compounds. Particularly, chemiresistive gas sensors and detection systems based on the terahertz spectroscopy method are outlined. The progress in research studies is discussed and the potential of both techniques is evaluated considering the current challenges. Afterward, a brief summary is also provided along with the advances and issues for future investigations and the manufacturing of highly sensitive and selective monitoring systems.

scholarly journals Bio-Inspired Strategies for Improving the Selectivity and Sensitivity of Artificial Noses: A Review

Sensors ◽  
2020 ◽  
Vol 20 (6) ◽  
pp. 1803 ◽  
Author(s):  
Charlotte Hurot ◽  
Natale Scaramozzino ◽  
Arnaud Buhot ◽  
Yanxia Hou
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Broad Spectrum ◽  
High Performance ◽  
Recent Progress ◽  
Performance Criteria ◽  
Public Security ◽  
Volatile Organic ◽  
Sensitivity And Selectivity ◽  
New Applications

Artificial noses are broad-spectrum multisensors dedicated to the detection of volatile organic compounds (VOCs). Despite great recent progress, they still suffer from a lack of sensitivity and selectivity. We will review, in a systemic way, the biomimetic strategies for improving these performance criteria, including the design of sensing materials, their immobilization on the sensing surface, the sampling of VOCs, the choice of a transduction method, and the data processing. This reflection could help address new applications in domains where high-performance artificial noses are required such as public security and safety, environment, industry, or healthcare.

Highly stable, selective, and high-performance VOC sensor using SnS2 nano-lotus structures

2021 ◽  
Author(s):  
Rajneesh Kumar Mishra ◽  
Gyu Jin Choi ◽  
Yogendra K. Mishra ◽  
Ajeet Kaushik ◽  
Youngku Sohn ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
High Performance ◽  
Solvothermal Method ◽  
Design And Development ◽  
Volatile Organic ◽  
One Step ◽  
Voc Sensor

This research demonstrates the design and development of a novel SnS2 nano-lotus structure (NLS) using a one-step eco-friendly solvothermal method to detect volatile organic compounds (VOCs) featured by a 3-S...

Sign in / Sign up

Export Citation Format

Share Document