Synthesis of a CuNP/chitosan/black phosphorus nanocomposite for non-enzymatic hydrogen peroxide sensing

A copper-chitosan-black phosphorus nanocomposite (CuNPs-Chit-BP) was fabricated by electrochemically depositing copper nanoparticles onto a black phosphorus-modified glassy carbon electrode in chitosan solution. CuNPs demonstrated a uniform distribution on the Chit-BP modified GCE with an average si...

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Published in:Analyst (London) 2020-11, Vol.145 (22), p.726-7266
Main Authors: Zhao, Yun, Zhuge, Zhen, Tang, Yi-Hong, Tao, Jian-Wei
Format: Article
Language:English
Subjects:
Biocompatibility
Catalytic activity
Chitosan
Copper
Electrical resistivity
Glassy carbon
Hydrogen peroxide
Nanocomposites
Nanoparticles
Phosphorus
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description A copper-chitosan-black phosphorus nanocomposite (CuNPs-Chit-BP) was fabricated by electrochemically depositing copper nanoparticles onto a black phosphorus-modified glassy carbon electrode in chitosan solution. CuNPs demonstrated a uniform distribution on the Chit-BP modified GCE with an average size of 20 nm. Electrochemical methods were used to study the catalytic activity of the CuNPs-Chit-BP nanocomposite toward hydrogen peroxide. The results showed that the synthesized nanocomposite exhibited excellent electrical conductivity, good biocompatibility and highly efficient electrocatalytic activity toward hydrogen peroxide reduction in the range of 10 μM-10.3 mM with a detection limit of 0.390 μM. The present work proposed a new strategy to explore novel BP-based non-enzymatic biosensing platforms. A copper-chitosan-black phosphorus nanocomposite was fabricated through a simple, electrochemical method. The synthesized non-enzymatic CuNPs-Chit-BP nanocomposite exhibited excellent electrocatalytic activity toward hydrogen peroxide.
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subjects Biocompatibility
Catalytic activity
Chitosan
Copper
Electrical resistivity
Glassy carbon
Hydrogen peroxide
Nanocomposites
Nanoparticles
Phosphorus
title Synthesis of a CuNP/chitosan/black phosphorus nanocomposite for non-enzymatic hydrogen peroxide sensing
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