Volatile organic compounds degradation by nonthermal plasma: a review

He, Yanghui; Shen, Jie; Alharbi, Njud S.; Chen, Changlun

doi:10.1007/s11356-023-25524-5

Cited by 15 publications

(6 citation statements)

References 181 publications

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“…Volatile organic compounds (VOCs), which are primary constituents of atmospheric pollution, have the potential to interact with breathed air via processes such as evaporation or sublimation, hence posing risks to both the ecological environment and human health. , Hence, a significant area of focus in current research pertains to the development of effective detection methods and removal technologies for VOCs that pose environmental risks. These VOCs include xylene (C 8 H 10 ), acetone (CH 3 COCH 3 ), formic acid (HCOOH), acetic acid (CH 3 COOH), and formaldehyde (HCHO), as highlighted in previous studies. , Among these deleterious VOCs, formic acid is acknowledged as a significant VOC with detrimental effects. It possesses a diverse array of practical uses, such as serving as a preserving or antimicrobial agent.…”

Section: Introductionmentioning

confidence: 91%

“…These VOCs include xylene (C 8 H 10 ), acetone (CH 3 COCH 3 ), formic acid (HCOOH), acetic acid (CH 3 COOH), and formaldehyde (HCHO), as highlighted in previous studies. 3 , 4 Among these deleterious VOCs, formic acid is acknowledged as a significant VOC with detrimental effects. It possesses a diverse array of practical uses, such as serving as a preserving or antimicrobial agent.…”

Section: Introductionmentioning

confidence: 99%

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Covalent-Organic-Framework-Modified Quartz Crystal Microbalance Sensor for Selective Detection of Hazardous Formic Acid

Ahmed,

Lüder,

Chuang

et al. 2024

ACS Appl. Mater. Interfaces

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Covalent organic frameworks (COFs) are a novel family of porous crystalline materials utilized in various advanced applications. However, applying COFs as a hazardous organic acid gas sensor is substantial but still challenging. Herein, a phenylenediamine-based covalent organic framework (TPDA-TPB COF) featuring excellent crystallinity, ultrastable thermal stability, and high surface area was successfully constructed. Then, the TPDA-TPB COF-modified quartz crystal microbalance (QCM) sensor is fabricated by immobilizing the TPDA-TPB COF thin film on the gold-QCM chip. The fabricated TPDA-TPB COF-modified QCM sensor demonstrates a rapid response, excellent reproducibility, high selectivity, and sensitivity to formic gas, arising from hydrogen-bonding interactions between formic acid and the outermost layer of the TPDA-TPB COF, as determined by extensive analysis and density functional theory calculations. The basic sites of the TPDA-TPB COF, which are numerous due to its high nitrogen content, and the carboxylic acid groups present in formic acid exhibit efficient interactions. The sensitivity of the TPDA-TPB COF-modified QCM sensor was found to be 7.75 Hz ppm −1 at standard room temperature and pressure conditions, with a limit of detection (LOD) of formic acid down to 1.18 ppm, which is significantly below the workplace olfactory threshold limit of 5.0 ppm established by the Occupational Safety and Health Administration. The TPDA-TPB COF-modified QCM sensor exhibits remarkable detecting capabilities, making it highly attractive for detecting organic acid vapors in diverse applications that require superior performance.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Covalent-Organic-Framework-Modified Quartz Crystal Microbalance Sensor for Selective Detection of Hazardous Formic Acid

Ahmed,

Lüder,

Chuang

et al. 2024

ACS Appl. Mater. Interfaces

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“…The reactivity of the species produced by cold plasma allows the reduction of various types of chemical and biological pollutants: VOCs (volatile organic compounds) [9], [10] (therefore also odors), viruses [11], bacteria [12] and mold.…”

Section: Cold Plasmamentioning

confidence: 99%

Emerging technologies for air cleaning and their integration in HVAC systems: Which role in the increasing quest for healthy and sustainable buildings?

Joppolo,

Gandini

2024

E3S Web Conf.

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The paper starts from the consideration of both the fundamental goals of getting healthier indoor environments and at the same time obtaining much higher building energy efficiencies. In this frame, it presents a review of the different electrically connected technologies for Air Cleaning that are proposed for integration in HVAC Systems and gives a brief description of the air-cleaning options, of the applied mechanism and of the target pollutants. Thereafter the functions attributed to the air-cleaning components (i.e. control of indoor pollutant sources and/or cleaning of outdoor fresh air) are classified in order to clarify the rationale behind the organizing principle of the HVAC system. The paper concludes by giving information on the status of standards regarding performance and safety requirements.

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“…Other reactive species, including ozone, transform odorous volatile organic compounds (VOCs) into alternative degradation products, resulting in efficient VOC removal. This effect has been extensively studied in the fields of waste gas purification and deodorization [12][13][14][15] . Therefore, non-thermal plasma technology presents a remarkable potential to address both bacterial sterilization and odor elimination through a non-contact approach without the need for chemical agents 8,9,[12][13][14][15][16][17] .…”

mentioning

confidence: 99%

“…This effect has been extensively studied in the fields of waste gas purification and deodorization [12][13][14][15] . Therefore, non-thermal plasma technology presents a remarkable potential to address both bacterial sterilization and odor elimination through a non-contact approach without the need for chemical agents 8,9,[12][13][14][15][16][17] . In cases of axillary bromhidrosis where both functions are required, cold atmospheric plasma technology can be applied to deodorant devices for disease treatment and management.…”

mentioning

confidence: 99%

Antibacterial and deodorizing effects of cold atmospheric plasma-applied electronic deodorant

Bok,

Choi,

Lee

et al. 2024

Sci Rep

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Axillary odor is a malodor produced by bacterial metabolism near the apocrine glands, which often causes discomfort in an individual's daily life and social interactions. A deodorant is a personal care product designed to alleviate or mask body odor. Currently, most deodorants contain antimicrobial chemicals and fragrances for odor management; however, direct application to the underarm skin can result in irritation or sensitivity. Therefore, there is a growing interest in technologies that enable disinfection and odor control without the antiperspirants or perfumes. The cold atmospheric plasma temporally generates reactive radicals that can eliminate bacteria and surrounding odors. In this study, cultured Staphylococcus hominis and Corynebacterium xerosis, the causative bacteria of axillary bromhidrosis, were killed after 90% plasma exposure for 3 min. Moreover, the electronic nose system indicated a significant reduction of approximately 51% in 3-hydroxy-3-methylhexanoic acid and approximately 34% in 3-methyl-3-sulfanylhexan-1-ol, the primary components of axillary odor, following a 5-min plasma exposure. These results support the dual function of our deodorant in eliminating bacteria and axillary odors without the chemical agents. Therefore, cold atmospheric plasma-applied deodorant devices have great potential for the treatment and management of axillary odors as a non-contact approach without chemical use in daily life.

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Volatile organic compounds degradation by nonthermal plasma: a review

Cited by 15 publications

References 181 publications

Covalent-Organic-Framework-Modified Quartz Crystal Microbalance Sensor for Selective Detection of Hazardous Formic Acid

Covalent-Organic-Framework-Modified Quartz Crystal Microbalance Sensor for Selective Detection of Hazardous Formic Acid

Emerging technologies for air cleaning and their integration in HVAC systems: Which role in the increasing quest for healthy and sustainable buildings?

Antibacterial and deodorizing effects of cold atmospheric plasma-applied electronic deodorant

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