Flexible and Printed Potentiometric pH Sensor for Water Quality Monitoring

Hosseini, Ensieh S.; Manjakkal, Libu; Dahiya, Ravinder

Abstract

This work presents a flexible potentiometric pH sensor consisting of a graphite-CuO sensitive electrode and an Ag/AgCl reference electrode. The pH sensor was fabricated by using a simple stencil hand printing technique at room temperature. The results demonstrate that the flexible printed graphite-CuO based pH sensor exhibits a linear response in a wide range of pH 4 to 10.5 with the sensitivity of 22.60 ± 1.3 mV/pH and a response time of 5 s. The developed flexible and miniaturized pH sensor is stable in the water for a long time (more than 1 month) and can be used for online water quality monitoring.

Citation

Hosseini, E. S., Manjakkal, L., & Dahiya, R. (2021). Flexible and Printed Potentiometric pH Sensor for Water Quality Monitoring. In 2021 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS). https://doi.org/10.1109/fleps51544.2021.9469778

• Conference Name: 2021 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
• Conference Location: Manchester, United Kingdom
• Start Date: Jun 20, 2021
• End Date: Jun 23, 2021
• Online Publication Date: Jul 5, 2021
• Publication Date: 2021
• Deposit Date: Jul 28, 2022
• Publisher: Institute of Electrical and Electronics Engineers
• Book Title: 2021 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS)
• DOI: https://doi.org/10.1109/fleps51544.2021.9469778
• Keywords: pH sensors, potentiometric, graphite-CuO, Printed Sensor, Water quality monitoring
• Public URL: http://researchrepository.napier.ac.uk/Output/2893015