Spectroscopic studies and evanescent optical fibre wave sensing of Cu2+ based on activated mesostructured silica matrix

This paper report on the synthesis and test of eriochrome cyanine R (ECR) doped mesostructured silica films as Cu2+ sensing without prior removal of the surfactant. ECR activated mesostructured silica (via sol-gel technique) coated optical fibre core were used to Cu2+ sensing by evanescent wave meth...

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Bibliographic Details
Published in:Journal of materials science 2005-09, Vol.40 (17), p.4523-4530
Main Authors: BELHADJ MILED, Othman, SANCHEZ, Clement, LIVAGE, Jacques
Format: Article
Language:English
Subjects:
Absorption
Applied sciences
Cetyltrimethylammonium bromide
Circuit properties
Copper
Detection
Electric, optical and optoelectronic circuits
Electronics
Evanescent waves
Exact sciences and technology
General equipment and techniques
Heat treatment
Immersion coating
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Integrated optics. Optical fibers and wave guides
Materials science
Optical and optoelectronic circuits
Optimization
Physics
Sensors (chemical, optical, electrical, movement, gas, etc.)
remote sensing
Silica gel
Silicon dioxide
Sol-gel processes
Spectrophotometry
Temperature dependence
Temperature effects
Tetraethyl orthosilicate
Thin films
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Summary:This paper report on the synthesis and test of eriochrome cyanine R (ECR) doped mesostructured silica films as Cu2+ sensing without prior removal of the surfactant. ECR activated mesostructured silica (via sol-gel technique) coated optical fibre core were used to Cu2+ sensing by evanescent wave method. The sol was prepared via acidic hydrolysis-condensation of tetraethoxysilane (TEOS) in the presence of cetyltrimethylammonium bromide (CTAB:C16H33NCH3Br) as the structure-directing agent. Spectrophotometric investigations using doped sol-gel thin films dip-coated on glass slides were reported. Heat treatment temperature effect (optimum temperature 150°C), absorption dependence on the pH of the aqueous phase (pH = 8 seems to be the optimal absorption pH), sensitivity, reversibility and response range (0.05 mmol/l) were reported.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-005-1135-4