Ethanol Vapour Sensing Based on TiO₂ Coated Fiber Optic

Abstract:

TiO₂ coated plastic optical fiber is developed for ethanol vapour detection. The detection based on intensity modulated evanescent wave fiber optic sensors. The cladding of POF fiber is etched by using acetone and distilled water. TiO₂ solution is prepared by dissolved the TiO₂ pellet powder in isopropanol and stir it by using ultrasonic homogenizer. The optical properties of TiO₂ is characterized by using UV-Vis spectrophotometer. The performance of coated fiber under ethanol vapour concentration range from 1000 ppm to 5000 ppm is examined. The penetration depth, response of the sensor and the sensitivity of coated fiber is observed transiently. The penetration depth of the TiO₂ coated fiber is 32.96 nm to 35.52 nm with sensitivity of 0.001 µW/% and slope linearity of 93.75 %.

• Periodical: Applied Mechanics and Materials (Volume 927)
• Pages: 15-20
• DOI: https://doi.org/10.4028/p-G69lNU
• Online since: June 2025
• Authors: Affa Rozana Abdul Rashid*, Nur Huda Dzulkarnain, Wan Maisarah Mukhtar, Nur Athirah Mohd Taib
• Keywords: Ethanol Vapour, Plastic Optical Fiber, Titanium Dioxide

References

[1] N. Zhang, Research on Optical Fiber Gas Sensing Based on Absorption Spectrometry in Optical Communication, Chemical engineering transactions59 (2017).

[2] Wang, Y., Liu, L., Meng, C., Zhou, Y., Gao, Z., et al.,A novel ethanol gas sensor based on TiO2 /Ag0.35V2O5 branched nanoheterostructures. Scientific Reports volume 6 (2016)Article number: 33092

DOI: 10.1038/srep33092

[3] S, B., Malik P, Santosh S, & Purnima J., Synthesis and Characterization of Nanocrystalline Zinc Oxide Thin Films for Ethanol Vapor Sensor, J Nanomed Nanotechnol, 6(2015).

DOI: 10.4172/2157-7439.1000306

[4] S. Shaari, A.R.A. Rashid, P.S. Menon, N. Arshad, Al doped ZnO coated fiber optic for ultraviolet and acetone sensing, Advanced Science Letters 19(5) (2013) 1306-1309.

DOI: 10.1166/asl.2013.4495

[5] A.R.A. Rashid, W.M. Mokhtar, K.A. Dasuki et al., Evanescent field study on a U-shaped silica fiber absorption sensor using non-sequential ray tracing, Solid State Phenomena 268 (2017) 413-417.

DOI: 10.4028/www.scientific.net/ssp.268.413

[6] A.R.A. Rashid, A.A.N. Hakim, N. Yahaya et al., U-bent polymer optical fiber (POF) Escherichia coli detection. Optoelectronics and Advanced Materials- Rapid Communications 14 (3-4) (2020) 118-122.

[7] A.R.A Rashid, P.S. Menon and S. Shaari, Nanocrystalline aluminum doped zinc oxide coated fiber optic for ultraviolet detection, Journal of Nonlinear Optical Physics & Materials 22 (03), 1350037.

DOI: 10.1142/s0218863513500379

[8] Rashid, A. R. A., Surani, A. H., Mukhtar, W. M., Arsad, N., & Menon, P. S. (2024). ZnO and GO coated plastic optical fiber for low concentration of ethanol detection in beer. Optoelectronics and Advanced Materials-Rapid Communications, 18(May-June 2024), 217-222.

[9] Ishigure, T., Koike, Y., & Fleming, J. W., Optimum Index Profile of the Perfluorinated Polymer-Based GI Polymer Optical Fiber and Its Dispersion Properties, Journal Of Lightwave Technology, 18(2) (2000).

DOI: 10.1109/50.822790

[10] Bartlett, R. J., Philip-Chandy, R., Eldridge, P., Merchant, D. F., Morgan, R., & Scully, P. J., Plastic optical fibre sensors and devices, Transactions of the Institute of Measurement and Control, 22(5)(2000), 431–457.

DOI: 10.1191/014233100701523918

[11] X. Zou, Y. Li, X. Huang et al., Dye-Sensitized Titanium Dioxide For Gas Detection, Materials Science Research Journal, 8(3)(2014), 227-241.

[12] Aziz, N. A. (2014). Titanium Dioxide (TiO2), Sol Gel Coating On 316l Stainless Steel, Thesis of Degree of Master of Engineering. Univeristi Tun Hussein Onn.

[13] C. Suwanchawalit, P. Chanhom, P. Sriprang, et al., A Ag-Doped TiO2 Photocatalyst for Dye Decolorization under UV and Visible Irradiation, Pure and Applied Chemistry International Conference 5(2011).

[14] D. Ponnusamy and S. Madanagurusamy, Porous Anatase TiO2 Thin Films for NH3 Vapour Sensing, J. Electron. Mater. 44 (2015) 4726-4733.

DOI: 10.1007/s11664-015-4099-4

[15] Golmojdeh, H., & Zanjanchi, M. A., Ethanol Gas Sensor Based on Pure and La-Doped Bismuth Vanadate. Journal of Electronic Materials, 43 (2013).

DOI: 10.1007/s11664-013-2921-4

[16] Mezni, A., Alghool, S., Sellami, B., & Saber, N. Ben. (2018). Titanium dioxide nanoparticles : synthesis , characterisations and aquatic ecotoxicity effects, 7540.

DOI: 10.1080/02757540.2017.1420178

[17] A.R.A. Rashid, P. S. Menon, S. Shaari, Optical VOC sensing applications of Al doped ZnO coated optical fiber, Optoelectronics and Advanced Materials-Rapid Communications, 7(11-12) (2013) 835-839.