Karakterisasi Serat Optik Berlapis Kitosan Untuk Deteksi Ion Logam Kadmium
(1) Jurusan Fisika, FMIPA Universitas Negeri Semarang, Indonesia Jl. Raya Sekaran Gunungpati-Semarang 50229
(2) Jurusan Fisika, FMIPA Universitas Negeri Semarang, Indonesia Jl. Raya Sekaran Gunungpati-Semarang 50229
(3) Jurusan Fisika, FMIPA Universitas Negeri Semarang, Indonesia Jl. Raya Sekaran Gunungpati-Semarang 50229
(4) Jurusan Fisika, FMIPA Universitas Negeri Semarang, Indonesia Jl. Raya Sekaran Gunungpati-Semarang 50229
Abstract
Keberadaan ion logam berat dalam air dapat menyebabkan masalah kesehatan yang serius bagi manusia mengingat ion logam berat bersifat racun. Oleh karena itu, deteksi ion logam berat dalam air, khususnya dalam sumber air minum penting dilakukan. Untuk menghemat waktu dan tenaga serta untuk mendapatkan data real-time, deteksi ion logam berat dapat dilakukan dengan menggunakan sensor serat optik. Dalam penelitian ini, telah dilakukan karakterisasi serat optik sebagai sensor untuk mendeteksi ion logam berat kadmium dengan menggunakan teknik absorbsi gelombang evanescent. Serat optik dimodifikasi menjadi sensor ion logam berat dengan mengganti bagian cladding dengan kitosan, material yang sensitif terhadap ion logam berat kadmium. Karakterisasi dilakukan untuk mendapatkan nilai sensitivitas dan waktu respon. Hasil pengukuran dengan mikroskop CCD menunjukkan bahwa ketebalan lapisan kitosan adalah 117mm. Sensitivitas sensor adalah -4.5dBm/ppm, sedangkan waktu respon 2 menit pada konsentrasi 1ppm dan 7 menit pada konsentrasi 3ppm.
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Achatz, D. E., Ali, R., Wolfbeis, O. S. 2011. Luminescent chemical sensing, biosensing, and screening using upconverting nanoparticles. Top Current Chemistry, 300: 29 –50.
Akita, S., Sasaki, H., Watanabe, K., & Seki, A. 2010. A humidity sensor based on a hetero-core optical fiber. Sensors and Actuators B: Chemical, 147: 385-391
Balaji, T., Sasidharan, M., Matsunaga, H. 2006. Naked eye detection of cadmium using inorganic–organic hybrid mesoporous material. Analytical Bioanalytical Chemistry, 384: 488-494.
Chen, R. S., Farmery, A. D., Obeid, A., & Hahn, C. E. W. 2012. A Cylindrical-Core Fiber-Optic Oxygen Sensor Based on Fluorescence Quenching of a Platinum Complex Immobilized in a Polymer Matrix. IEEE Sensors Journal, 12: 71-75.
Cho, E. S., Kim, J., Tejerina, B., Hermans, T. M., Jiang, H., Nakanishi, H. 2012. Ultrasensitive detection of toxic cations through changes in the tunnelling current across films of striped nanoparticles. Nature Materials, 11: 978–985.
Chu, C.-S., & Lo, Y.-L. 2009. Highly sensitive and linear optical fiber carbon dioxide sensor based on sol–gel matrix doped with silica particles and HPTS. Sensors and Actuators B: Chemical, 143: 205-210.
Dong, Z., Wang, L., Xu, J., Li, Y., Zhang, Y., Zhang, S., et al. 2009. Promotion of autophagy and inhibition of apoptosis by low concentrations of cadmium in vascular endothelial cells. Toxicology in Vitro, 23: 105–110.
Guillemain, H., Rajarajan, M., Sun, T., Grattan, K. T. V. 2009. A self-referenced reflectance sensor for the detection of lead and other heavy metal ions using optical fibres, Measurement Science Technology, 20: 045207.
Gumpu, M. B, Sethuraman, S., Krishnan, U.M., Rayappan, J. B.B. 2015. A review on detection of heavy metal ions in water – An electrochemical approach. Sensors and Actuators B, 213: 515–533.
Liu, J., Qu, W., & Kadiiska, M. B. 2009. Role of oxidative stress in cadmium toxicity and carcinogenesis. Toxicology and Applied Pharmacology, 238: 209–214.
Mayra, T., Klimant, I., Wolfbeis, O. S., Werner, T. 2008. Dual lifetime referenced optical sensor membrane for the determination of copper (II) ions. Analytical ChimicaActa, 462: 1 - 10.
Olivero, M. , Perrone, G., Vallan, A., and Tosi D. 2014. Comparative Study of Fiber Bragg Gratings and Fiber Polarimetric Sensors for Structural Health Monitoring of Carbon Composites. Advances in Optical Technologies, Article ID 804905, 8 pages.
Prabhakaran, D., Nanjo, H., Matsunaga, H. 2007. Naked eye sensor on polyvinyl chloride platform of chromo-ionophore molecular assemblies: A smart way for the colorimetric sensing of toxic metal ions. Analytical ChimicaActa, 601: 108 - 117.
Yeo, T. L., Sun, T., Grattan, K. T. V., Parry, D., Lade, R., & Powell, B. D. 2005. Characterisation of a polymer-coated fibre Bragg grating sensor for relative humidity sensing. Sensors and Actuators B: Chemical, 110: 148-156.
Yusof, N. A., Ahmad, M. 2003. A flow-through optical fibre reflectance sensor for the detection of lead ion based on immobilized gallocynine. Sensors and Actuators B, 94: 201 – 209.
Zargoosh, K. & Babadi F. F. 2015. Highly selective and sensitive optical sensor for determination of Pb2+and Hg2+ ions based on the covalent immobilization of dithizone on agarose membrane. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 137: 105-110.
Verma, R. & Gupta B. D. 2015. Detection of heavy metal ions in contaminated water by surface plasmon resonance based optical fibre sensor using conducting polymer and chitosan. Food Chemistry, 166: 568–575.
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