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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Korean Society of Industrial Engineering Chemistry
2016
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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. |
first_indexed | 2024-03-05T20:07:10Z |
format | Article |
id | utm.eprints-73858 |
institution | Universiti Teknologi Malaysia - ePrints |
last_indexed | 2024-03-05T20:07:10Z |
publishDate | 2016 |
publisher | Korean Society of Industrial Engineering Chemistry |
record_format | dspace |
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 |