A chitosan/PAA-coated LPG sensor for Ni+ ion detecting

Shaotong Huang; Hanzheng Zhang; Jinchao Chen; Yanmei Tang; Zidan Gong

doi:10.1117/12.2590793

18 March 2021 A chitosan/PAA-coated LPG sensor for Ni+ ion detecting

Shaotong Huang, Hanzheng Zhang, Jinchao Chen, Yanmei Tang, Zidan Gong

Proceedings Volume 11780, Global Intelligent Industry Conference 2020; 117801W (2021) https://doi.org/10.1117/12.2590793
Event: Global Intelligent Industry Conference 2020, 2020, Guangzhou, China

Abstract

A long period fiber grating (LPG) based sensor coated with Chitosan/polyacrylic acid polymer film for heavy metal ion Ni⁺ detecting was proposed in this study. Multiple Chitosan/polyacrylic acid (PAA) layers which could chelate with Ni⁺ were coated on the LPG sensor via Layer by layer (LbL) self-assembly technique to achieve Ni⁺ concentration sensing in liquids. Results showed that when the concentration of Ni+ in the range of 0.02mMol/L to 0.08mMol/L, there is a sensitivity of 5.564nm/mMol, when the concentration between 0.3mMol/L to 0.7mMol/L, the sensitivity reduced to 1.345nm/mMol, and in high concentration of 1mMol/L to 10mMol/L, the degree of linear correlation is extremely low.

Citation Download Citation

Shaotong Huang, Hanzheng Zhang, Jinchao Chen, Yanmei Tang, and Zidan Gong "A chitosan/PAA-coated LPG sensor for Ni+ ion detecting", Proc. SPIE 11780, Global Intelligent Industry Conference 2020, 117801W (18 March 2021); https://doi.org/10.1117/12.2590793

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