Solid State Science and Technology, Vol. 16, No 1 (2008) 63-74

ISSN 0128-7389

Corresponding Author: mms@pkrisc.cc.ukm.my

63

FLUORESCENCE GAS SENSOR USING TiO2 NANOPARTICLES COATED

WITH PORPHYRIN DYE THIN FILMS

 

Nurul Huda Yusoff1, Muhamad Mat Salleh1 and Muhammad Yahaya2

1Institute of Microengineering and Nanoelectronics,

Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor.

2School of Applied Physics, Faculty of Science & Technology,

Universiti Kebangsaan Malaysia,43600 Bangi, Selangor.

 

ABSTRACT

This paper explores the possibility of using fluorescence technique to detect the presence of volatile organic compounds based on TiO2 nanoparticles coated with porphyrin dye thin films. Porphyrin dye used was Iron (III) meso-tetraphenylporphine chloride. The thin films were prepared with the variation of TiO2 and porphyrin ratio, i.e. 1:2, 1:3, 1:4 and 1:5 by volume. The purpose of this study is to search the most suitable variation of TiO2 and porphyrin ratio in the fabrication of the thin film in order to optimize the sensitivity of the fluorescence gas sensor. All the thin films were deposited on quartz substrate using self-assembly through dip coating technique. The sensing properties of the thin films toward volatile organic compounds; ethanol, acetone and 2-propanol were studied using luminescence spectrometer. In the presence of air and volatile organic compounds, thin films produced different emission spectra and ease for chemical identification process except for ratio 1:5. The thin film of TiO2 nanoparticles coated porphyrin with ratio of 1:2 produced more intensive interaction and exhibit good sensitivity than other thin films. The thin film has smallest size; it will give the larger surface area and increase the interaction with VOCs. Hence, it is potentially be used as fluorescence gas sensor.

 

http://journal.masshp.net/wp-content/uploads/Journal/2008/Jilid%201/Nurul%20Huda%20Yusoff%2063-74.pdf

 

REFERENCES

[1] J. Matsumoto and Y. Kajii, (2003); “Improved analyzer for nitrogen dioxide by

laser-induced fluorescence technique,” Atmospheric Environment ,Vol. 37,

Issue 34, 4847-4851.

[2] T.H. Richardson, C.M. Dooling, O. Worsfold , L.T. Jones, K. Kato, K. Shinbo,

F. Kaneko, R. Tregonning, M.O. Vysotsky and C.A. Hunter, (2002); “Gas

sensing properties of porphyrin assemblies prepared using ultra-fast LB

deposition,” Colloids and Surfaces A: Physicochemical and Engineering

Aspects 198–200, 843–857.

[3] G. Z. Xiao, A. Adnet, Z. Zhang, F. G. Sun and C. P. Grover, (2005);

“Monitoring changes in the refractive index of gases by means of a fiber optic

Fabry-Perot interferometer sensor,” Sensors and Actuators A 118, 177–182.

[4] S. Conoci, M. Palumbo, B. Pignataro, R. Rella, L. Valli and G. Vasapollo,

(2002); “Optical recognition of organic vapours through ultra thin calyx pyrrole

films,” Colloids and Surfaces A: Physicochemical and Engineering Aspects

198–200, 869–873.

[5] M.S. Kim, A.M. Lefcourt, and Y. R. Chen, (2004); “Multispectral fluorescence

imaging technique for nondestructive food safety inspection,” Proceedings of

SPIE - The International Society for Optical Engineering, Vol. 5271, 62-72.

[6] M.Z.Krecicka, T. Krecicki, M. Fraczek, E.B. Pawlik and T.Zatonski, (2005);

“Autofluorescence laryngoscopy in the diagnosis of laryngeal cancer-early

results,” Otolaryngologia polska. The Polish otolaryngology, Vol. 59, issue 2,

195-199.

[7] S.W. Hong, K.H. Kim, J. Huh, C. H. Ahn, and W.H. Jo, (2005); “Design and

synthesis of a new pH sensitive polymeric sensor using fluorescence resonance

energy transfer,” Chemistry of Materials, vol 17, issue 25, 6213-6215.

[8] T.M.A. Razek, M. J. Miller, S.S.M. Hassan, and M. A. Arnold, (1999); “Optical

sensor for sulfur dioxide based on fluorescence quenching,” Talanta 50, 491–

498.

[9] T.E. Brook, and R. Narayanaswamy, (1997); “Immobilization of ruthenium trisbiphyridyl

complex for chlorine gas detection,” Sensors and Actuators B 38-39,

195-201.

[10] M.G. Baron, R. Narayanaswamy, and S. C. Thorpe, (1995); “A kineto-optical

method for the determination of chlorine gas,” Sensors and Actuators B 29, 358-

362.

[11] D. Y. Sasaki, S. Singh, J. D. Cox, and P.I. Pohl, (2001); “Fluorescence detection

of nitrogen dioxide with perylene/PMMA thin films,” Sensors and Actuators B

72, 51-55.

[12] Akrajas, M. M. Salleh and M. Yahaya, (2002); “Enriching the selectivity of

metalloporphyrins chemicals sensors by means of optical technique,” Sensor and

Actuators B, vol. 85,191-196.

[13] M.M. Salleh, Akrajas and M. Yahaya, (2002); “Optical sensing of volatile

organic compounds using metalloporphyrin complexes Langmuir-Boldget

films,” Intl. J. of Nonlin. Sci & Num. Simul, Vol.3, 461-464.

[14] S. E. Assmann, J. Widoniak and G. Maret, (2004); “Synthesis and

characterization of porous and nonporous monodisperse colloid TiO2 particles,”

Chem. Mater 16, 6-11.