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A dissolved oxygen sensor based on composite fluorinated xerogel doped with platinum porphyrin dye
Author(s) -
Zhao Yun,
Ye Tingxiu,
Chen Haixu,
Huang Dapeng,
Zhou Tingyao,
He Chunyan,
Chen Xi
Publication year - 2011
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.1182
Subject(s) - oxygen sensor , platinum , oxygen , doping , materials science , fluorescence , porphyrin , quenching (fluorescence) , chemistry , photochemistry , optoelectronics , organic chemistry , catalysis , optics , physics
A new functional fluorinated material taking n ‐propyltrimethoxysilicane ( n ‐propyl‐TriMOS) and 3,3,3‐trifluoropropyltrimethoxysilicane (TFP‐TriMOS) as precursors was applied to construct a novel dissolved oxygen sensing film. The sensing film was fabricated by dip‐coating the functional fluorinated material‐doped [meso‐tetrakis(pentafluorophenyl) porphyinato] platinum(II) (PtF 20 TPP) onto a glass slide. The oxygen sensing film exhibited a good linear relationship, fast response time, long stability and high sensitivity to dissolved oxygen. In the developed optical oxygen sensor, an LED and a photodiode were composed to construct a back‐detection optical system not needing an optical fiber based on fluorescence intensity detection. The smart optical oxygen sensor based on the PtF 20 TPP fluorescence quenching possesses the advantages of portability and low cost and can be applied to the dissolved oxygen in situ monitoring in seawater. Copyright © 2009 John Wiley & Sons, Ltd.