Events2nd International Electronic Conference on Sensors and Applications
Event submissions
Published
with-doi10.3390/ecsa-2-B001
This submission belongs to the session B. Chemical Sensors of the event 2nd International Electronic Conference on Sensors and Applications
Published date
10 Nov, 2015
Citation
Nedal Y Abu-Thabit, Yunusa Umar, Elaref Ratemi, Ayman Ahmad, Polyaniline-Coated Polysulfone Membranes as Flexible Optical pH Sensors, in Proceedings of 2nd International Electronic Conference on Sensors and Applications, 15 November–30 November 2015, MDPI: Basel, Switzerland, doi: 10.3390/ecsa-2-B001
Share
Email
Facebook
Twitter
LinkedIn

Polyaniline-Coated Polysulfone Membranes as Flexible Optical pH Sensors

Nedal Y Abu-Thabit 1
image
Yunusa Umar 1
Elaref Ratemi 1
Ayman Ahmad 1
1. Department of Chemical and Process Engineering Technology, Jubail Industrial College, Jubail Industrial City 31961, Saudi Arabia
Abstract

A new optical pH sensor based on Polysulfone (PSU) and Polyaniline (PANI) was developed. The transparent and flexible PSU membrane was employed as a support. The electrically conductive and pH-responsive          PANI was deposited onto the membrane surface by in situ chemical oxidative polymerization (COP). The absorption spectra of the PANI-coated PSU membranes exhibited sensitivity to pH changes in the range of 4-12, which allowed for designing dual wave length pH optical sensor. The performance and durability of the membranes were assessed by measuring their response starting from high pH and going down to low pH, and vice versa. The effect of synthesis conditions and film thickness were investigated. The effect of the membrane's storage conditions on the reproducibility of the results was also investigated

Keywords
Manuscript
6078.pdf
The "Smart Ring" Experience in l'Aquila (Italy): Integrating Smart Mobility Public Services with Air Quality Indexes
Cost effective power amplifiers for pulsed NMR sensors