Synthesis and characterization of multilayered sol-gel based plastic-clad fiber optic pH sensor

Shumaila Islam; Rosly Abdul Rahman; Zulkafli Bin Othaman; Saira Riaz; Shahzad Naseem

Journal of Industrial and Engineering Chemistry, Vol.23, 140-144, March, 2015

DOI10.1016/j.jiec.2014.08.007 Export Citation

Synthesis and characterization of multilayered sol-gel based plastic-clad fiber optic pH sensor

Shumaila Islam^†, Rosly Abdul Rahman, Zulkafli Bin Othaman¹, Saira Riaz², and Shahzad Naseem²

Advanced Photonic Science Institute, Nanotechnologi Research Alliance, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
¹Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia, Johor Bharu 81310, Malaysia
²Centre of Excellence in Solid State Physics, University of the Punjab, QAC, Lahore 54590, Pakistan

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The fabrication and characterization of an optical fiber pH sensor for the detection range 3?11 are described. The sensing element consists of a combination of indicators encapsulated in mesoporous surfactant based hybrid matrix, which are deposited onto an uncladed plastic optical fiber. Stable, dense and uniform sol?gel cladding with more than 90% transparency in the visible range are observed. Roughness value 9.7?6.57 nm is obtained by AFM. Film thickness, refractive index, and porosity are found to vary with number of coatings, 70% porosity is determined with 116 nm thickness. The response of the sensor with third layer is observed in acid and basic medium.

Keywords:Sol-gel;pH sensor;Refractive index;Porosity

[References]

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Halina P, Agnieszka U, Bull. Pol. Acad. Sci. Tech. Sci., 53(3), 261 (2005)
Othman BM, Hafedh BO, Jacques L, Mater. Sci. Eng. C-Biomimetic Supramol. Syst., 21, 183 (2002)
Islam S, Rahman RA, Othaman Z, Riaz S, Saeed MA, Naseem S, J. Sol-Gel Sci. Technol., 68, 164 (2013)
Sinko K, Materials, 3, 704 (2010)
Bernhard M, New Fluorescent Optical pH Sensors with Minimal Effects of Ionic Strength, (Thesis), 2004.
Rahn MD, Terence AK, Appl. Opt., 34(36), 8260 (1995)
Thomas L, Jose G, Nampoori VPN, Vallabhan CPG, Unnikrishnan NV, Radhakrishnan P, J. Opt. A-Pure Appl. Opt., 3, 355 (2001)
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George H, John C, Ingemar P, David B, Andrew M, Maxwell C, Photonic Sens., 3(2), 168 (2013)
Lukowiak A, Dylewicz R, Lis S, Baszczuk A, Patela S, Maruszewski K, Roczniki Polskiego Towarzystwa Chemicznego (Ann. Pol. Chem. Soc.), (2007).
Mechiakh R, Meriche F, Kremer R, Bensaha R, Boudine B, Boudrioua A, Opt. Mater., 30, 645 (2007)
Grzegorz H, Dawid SHT, International Students and Young Scientists Workshop ‘‘Photonics and Microsystems’’, 2008.

[Referenced By]

[1] Halina P, Agnieszka U, Gerhard M, Hans JE, NATO Sci. Ser. II: Math. Phys. Chem., 224, 353 (2006)

[2] Halina P, Agnieszka U, Bull. Pol. Acad. Sci. Tech. Sci., 53(3), 261 (2005)

[3] Othman BM, Hafedh BO, Jacques L, Mater. Sci. Eng. C-Biomimetic Supramol. Syst., 21, 183 (2002)

[4] Islam S, Rahman RA, Othaman Z, Riaz S, Saeed MA, Naseem S, J. Sol-Gel Sci. Technol., 68, 164 (2013)

[5] Sinko K, Materials, 3, 704 (2010)

[6] Bernhard M, New Fluorescent Optical pH Sensors with Minimal Effects of Ionic Strength, (Thesis), 2004.

[7] Rahn MD, Terence AK, Appl. Opt., 34(36), 8260 (1995)

[8] Thomas L, Jose G, Nampoori VPN, Vallabhan CPG, Unnikrishnan NV, Radhakrishnan P, J. Opt. A-Pure Appl. Opt., 3, 355 (2001)

[9] Brinley E, Seal S, Folks R, Braunstein E, Kramer L, Seal S, J. Vac. Sci. Technol. A, 24(4), 1141 (2006)

[10] Delana AN, Yunke Z, Michael A, Anal. Chim. Acta, 376, 235 (1998)

[11] George H, John C, Ingemar P, David B, Andrew M, Maxwell C, Photonic Sens., 3(2), 168 (2013)

[12] Lukowiak A, Dylewicz R, Lis S, Baszczuk A, Patela S, Maruszewski K, Roczniki Polskiego Towarzystwa Chemicznego (Ann. Pol. Chem. Soc.), (2007).

[13] Mechiakh R, Meriche F, Kremer R, Bensaha R, Boudine B, Boudrioua A, Opt. Mater., 30, 645 (2007)

[14] Grzegorz H, Dawid SHT, International Students and Young Scientists Workshop ‘‘Photonics and Microsystems’’, 2008.