Highly sensitive and colorimetric detection of hydrogen sulphide by in situ formation of Ag2S@Ag nanoparticles in polyelectrolyte multilayer film

Hongxia Fu; Xinrui Duan

doi:10.1039/C4RA11526K

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Highly sensitive and colorimetric detection of hydrogen sulphide by in situ formation of Ag₂S@Ag nanoparticles in polyelectrolyte multilayer film†

Hongxia Fu^a and Xinrui Duan*^a

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* Corresponding authors

^a Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an, Shaanxi, P. R. China
E-mail: duanxr@snnu.edu.cn

Abstract

Ag₂S nanoparticles (NPs) were formed by reacting Ag⁺ ions with H₂S gas in a polyelectrolyte multilayer film. Ag₂S NPs later catalyse the formation of Ag NPs. H₂S (when as low as 10 nM Na₂S was used as a donor) was sensitively detected by monitoring the UV-vis absorbance of the newly formed Ag NPs.

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Article information

DOI: https://doi.org/10.1039/C4RA11526K
Article type: Communication
Submitted: 30 Sep 2014
Accepted: 02 Dec 2014
First published: 02 Dec 2014

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RSC Adv., 2015,5, 3508-3511

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Highly sensitive and colorimetric detection of hydrogen sulphide by in situ formation of Ag₂S@Ag nanoparticles in polyelectrolyte multilayer film

H. Fu and X. Duan, RSC Adv., 2015, 5, 3508 DOI: 10.1039/C4RA11526K

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