Loading…

A novel hydrogen peroxide sensor based on Ag nanoparticles decorated polyaniline/graphene composites

ABSTRACT A novel electrochemical sensor based on Ag nanoparticles (AgNPs) decorated polyaniline/graphene composites (PANI/G) is developed, which can be used for sensitive determination of H2O2. For the construction of the H2O2 sensor, polyaniline (PANI) is first electrodeposited on the surface of gr...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied polymer science 2015-10, Vol.132 (37), p.np-n/a
Main Authors: Li, Shan, Xiong, Jianxin, Shen, Jingsong, Qin, Yong, Li, Juan, Chu, Fuqiang, Kong, Yong, Deng, Linhong
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:ABSTRACT A novel electrochemical sensor based on Ag nanoparticles (AgNPs) decorated polyaniline/graphene composites (PANI/G) is developed, which can be used for sensitive determination of H2O2. For the construction of the H2O2 sensor, polyaniline (PANI) is first electrodeposited on the surface of graphene (G) to form PANI/G, and then horseradish peroxidase (HRP) loaded on AgNPs (HRP/AgNPs) is immobilized on to the PANI/G. H2O2 can be catalyzed by HRP to generate current response which can be significantly enhanced by AgNPs, and thus the PANI/G based sensor can be utilized for the detection of H2O2. Under the optimized conditions, the proposed H2O2 sensor exhibits wide linear response to H2O2 concentration ranging from 0.25 to 2.25 mM with a detection limit of 0.03 mM (signal‐to‐noise ratio of 3), and it also shows high selectivity and reproducibility. The method is simple and cost‐effective, and can be a promising candidate as the sensitive sensing platform for H2O2. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42409.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.42409