The performance of quartz crystal microbalance coated TiO2-porphyrin nanocomposite thin film gas sensors

Syariena Arshad, Muhamad Mat Salleh, Muhammad Yahaya

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Quartz crystal microbalance (QCM) coated TiO2-porphyrin nanocomposite thin film gas sensors were fabricated to detect some volatile organic compounds namely ethanol, acetone, 2-propanol, cyclohexane, toluene and o-xylene. The QCM thin films were prepared by dipping the QCM into mixed sol-gel of TiO2 nanoparticies and 5,10,15,20-tetraphenyl-21H,23H-manganese (III) chloride. It was found that the thin films were sensitive towards the all type of organic vapors that indicated by a huge change in the QCM frequency upon exposure towards gases. The responses were found to be stable and reproducible. The sensitivity was found to depend on the mixture ratio between TiO2 and porphyrin. We also found that the sensitivity was depending on the surface microstructure of the thin films. The gas thin film interaction mechanism is proposed.

Original languageEnglish
Pages (from-to)903-907
Number of pages5
JournalSensor Letters
Volume6
Issue number6
DOIs
Publication statusPublished - Dec 2008

Fingerprint

Nanocomposite films
Quartz crystal microbalances
Porphyrins
quartz crystals
Chemical sensors
porphyrins
microbalances
nanocomposites
Thin films
sensors
thin films
gases
sensitivity
volatile organic compounds
xylene
Propanol
Xylene
Cyclohexane
dipping
Volatile organic compounds

Keywords

  • Organic-inorganic nanocomposite
  • Porphyrin
  • QCM
  • Sol-Gel
  • TiO nanoparticles
  • VOCs

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Atomic and Molecular Physics, and Optics

Cite this

The performance of quartz crystal microbalance coated TiO2-porphyrin nanocomposite thin film gas sensors. / Arshad, Syariena; Mat Salleh, Muhamad; Yahaya, Muhammad.

In: Sensor Letters, Vol. 6, No. 6, 12.2008, p. 903-907.

Research output: Contribution to journalArticle

Arshad, Syariena ; Mat Salleh, Muhamad ; Yahaya, Muhammad. / The performance of quartz crystal microbalance coated TiO2-porphyrin nanocomposite thin film gas sensors. In: Sensor Letters. 2008 ; Vol. 6, No. 6. pp. 903-907.
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