Advances in colorimetric and optical sensing for gaseous volatile organic compounds

Abdelmonaim Azzouz, Vikrant Kumar, Ki-Hyun Kim, Evaristo Ballesteros, T. Rhadfi, Ashok Kumar Malik

Research output: Contribution to journalReview articleResearchpeer-review

Abstract

Exposure to volatile organic compounds (VOCs) can exert serious impacts on human health. The detection and identification of VOCs are, therefore, important both in outdoor and indoor (whether workplace or residential) environments. The use of colorimetric and optical sensing techniques for VOCs is expected to offer new ways to overcome many limitations in traditional gas sensing systems. In this work, a classification of colorimetric and optical sensing devices was made and discussed with respect to the sensing mechanisms, principles, and sensing materials for common VOCs (e.g., alcohols, aldehydes, alkenes, aromatic compounds, halogenated VOCs, ketones, and polycyclic aromatic hydrocarbons). The performances of these sensing approaches were also evaluated in terms of sensitivity relative to other available detection methods. Furthermore, this paper offers an extensive review of recent progresses in this area with a discussion on the future challenges associated with the expansion of colorimetric/optical sensing techniques.

Original languageEnglish
Pages (from-to)502-516
Number of pages15
JournalTrAC - Trends in Analytical Chemistry
Volume118
DOIs
StatePublished - 2019 Sep 1

Fingerprint

Volatile Organic Compounds
Aromatic compounds
Polycyclic Aromatic Hydrocarbons
Alkenes
Ketones
Aldehydes
Gases
Alcohols
Health

Keywords

  • Air
  • Colorimetric sensors
  • Nanomaterials
  • Optical sensors
  • Volatile organic compounds

Cite this

Azzouz, Abdelmonaim ; Kumar, Vikrant ; Kim, Ki-Hyun ; Ballesteros, Evaristo ; Rhadfi, T. ; Malik, Ashok Kumar. / Advances in colorimetric and optical sensing for gaseous volatile organic compounds. In: TrAC - Trends in Analytical Chemistry. 2019 ; Vol. 118. pp. 502-516.
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Advances in colorimetric and optical sensing for gaseous volatile organic compounds. / Azzouz, Abdelmonaim; Kumar, Vikrant; Kim, Ki-Hyun; Ballesteros, Evaristo; Rhadfi, T.; Malik, Ashok Kumar.

In: TrAC - Trends in Analytical Chemistry, Vol. 118, 01.09.2019, p. 502-516.

Research output: Contribution to journalReview articleResearchpeer-review

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AU - Kumar, Vikrant

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AU - Malik, Ashok Kumar

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