Sol-gel based phenolphthalein encapsulated heterogeneous silica-titania optochemical pH nanosensor

Thermally stable phenolphthalein encapsulated silica-titania nanomatrix is fabricated by sol-gel method for optochemical pH sensing. The particle size ~56-121 nm is obtained with average surface roughness of 3.95 nm after the encapsulation of dye which is highly appropriate for optical and sensing a...

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Main Authors: Islam, S., Bidin, N., Riaz, S., Naseem, S.
Format: Article
Published: Korean Society of Industrial Engineering Chemistry 2016
Subjects:
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author Islam, S.
Bidin, N.
Riaz, S.
Naseem, S.
author_facet Islam, S.
Bidin, N.
Riaz, S.
Naseem, S.
author_sort Islam, S.
collection ePrints
description Thermally stable phenolphthalein encapsulated silica-titania nanomatrix is fabricated by sol-gel method for optochemical pH sensing. The particle size ~56-121 nm is obtained with average surface roughness of 3.95 nm after the encapsulation of dye which is highly appropriate for optical and sensing applications. High surface area value ~218 m2/g, pore volume of 0.16 cm3/g and pore diameter of 31.49 Å is obtained after encapsulation. Furthermore, the sensor response is optimized at pH 10 Fast response time 1-2s, sensitivity with good reproducibility identify that the fabricated optochemical nanosensor is challenging for the detection of pH at room temperature.
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spelling utm.eprints-738582017-11-20T02:17:53Z http://eprints.utm.my/73858/ Sol-gel based phenolphthalein encapsulated heterogeneous silica-titania optochemical pH nanosensor Islam, S. Bidin, N. Riaz, S. Naseem, S. TP Chemical technology Thermally stable phenolphthalein encapsulated silica-titania nanomatrix is fabricated by sol-gel method for optochemical pH sensing. The particle size ~56-121 nm is obtained with average surface roughness of 3.95 nm after the encapsulation of dye which is highly appropriate for optical and sensing applications. High surface area value ~218 m2/g, pore volume of 0.16 cm3/g and pore diameter of 31.49 Å is obtained after encapsulation. Furthermore, the sensor response is optimized at pH 10 Fast response time 1-2s, sensitivity with good reproducibility identify that the fabricated optochemical nanosensor is challenging for the detection of pH at room temperature. Korean Society of Industrial Engineering Chemistry 2016 Article PeerReviewed Islam, S. and Bidin, N. and Riaz, S. and Naseem, S. (2016) Sol-gel based phenolphthalein encapsulated heterogeneous silica-titania optochemical pH nanosensor. Journal of Industrial and Engineering Chemistry, 34 . pp. 258-268. ISSN 1226-086X https://www.scopus.com/inward/record.uri?eid=2-s2.0-84953636736&doi=10.1016%2fj.jiec.2015.11.022&partnerID=40&md5=8cff4bb219d4c0165727802c926dc80c
spellingShingle TP Chemical technology
Islam, S.
Bidin, N.
Riaz, S.
Naseem, S.
Sol-gel based phenolphthalein encapsulated heterogeneous silica-titania optochemical pH nanosensor
title Sol-gel based phenolphthalein encapsulated heterogeneous silica-titania optochemical pH nanosensor
title_full Sol-gel based phenolphthalein encapsulated heterogeneous silica-titania optochemical pH nanosensor
title_fullStr Sol-gel based phenolphthalein encapsulated heterogeneous silica-titania optochemical pH nanosensor
title_full_unstemmed Sol-gel based phenolphthalein encapsulated heterogeneous silica-titania optochemical pH nanosensor
title_short Sol-gel based phenolphthalein encapsulated heterogeneous silica-titania optochemical pH nanosensor
title_sort sol gel based phenolphthalein encapsulated heterogeneous silica titania optochemical ph nanosensor
topic TP Chemical technology
work_keys_str_mv AT islams solgelbasedphenolphthaleinencapsulatedheterogeneoussilicatitaniaoptochemicalphnanosensor
AT bidinn solgelbasedphenolphthaleinencapsulatedheterogeneoussilicatitaniaoptochemicalphnanosensor
AT riazs solgelbasedphenolphthaleinencapsulatedheterogeneoussilicatitaniaoptochemicalphnanosensor
AT naseems solgelbasedphenolphthaleinencapsulatedheterogeneoussilicatitaniaoptochemicalphnanosensor