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Synthesis and characterization of hybrid matrix with encapsulated organic sensing dyes for pH sensing application

Islam, Shumaila and Abdul Rahman, Rosly and Othaman, Zulkafli and Riaz, Saira and Naseem, Shahzad (2014) Synthesis and characterization of hybrid matrix with encapsulated organic sensing dyes for pH sensing application. Journal of Industrial and Engineering Chemistry, 20 (6). p. 4414. ISSN 1226-086X

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Official URL: https://doi.org/10.1016/j.jiec.2014.02.008

Abstract

Films of multi-organic indicators, encapsulated in silica-titania hybrid matrix with CTAB, have been synthesized using sol-gel dip coating method. Two types of stable,dense and uniform matrices were annealed at a 150 degrees C within two time intervals 1 h and 2 h by using 0.1 M and 0.5 M indicator concentrations. Nanoparticles are uniformly distributed with size in the range from 15-28 nm. Matrices have high surface area (418.18-441.30 m(2)/g), which has more capability to sense the broader pH range. Spectroscopic studies showed the establishment of heterogeneous chemical bonding which indicative of stability of matrices with 69% porosity. The response of the sensor is optimum at pH 9. (C) 2014 The Korean Society of Industrial and Engineering Chemistry.

Item Type:Article
Uncontrolled Keywords:indicator, films
Subjects:Q Science
Divisions:Science
ID Code:62771
Deposited By: Fazli Masari
Deposited On:14 Jun 2017 08:33
Last Modified:14 Jun 2017 08:33

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