Issue 8, 2024

A zinc–air battery assisted self-powered electrochemical sensor for sensitive detection of microcystin-RR

Abstract

Building a high-performance sensing platform is the key to developing sensitive sensors. Herein, a highly sensitive self-powered electrochemical sensor (SPES) was constructed using a WO3·H2O film as the cathode prepared by a hydrothermal method and Zn as the anode, and it could be applied to sensitive detection of microcystin (MC-RR). The WO3·H2O film with a larger specific surface area could boost the oxygen reduction reaction (ORR), which could achieve signal amplification and significantly increase the sensitivity of the sensors. Under the optimal conditions, there was a good linear relationship between the increased electrical power density and the logarithm of MC-RR concentration with a detection limit of 1.31 × 10−15 M (S/N = 3). This method had good anti-interference ability and stability when applied to the determination of MC-RR content in actual samples, which could boost the potential application of electrochemical sensors in the field of environmental monitoring.

Graphical abstract: A zinc–air battery assisted self-powered electrochemical sensor for sensitive detection of microcystin-RR

Supplementary files

Article information

Article type
Paper
Submitted
05 Feb 2024
Accepted
05 Mar 2024
First published
06 Mar 2024

Analyst, 2024,149, 2291-2298

A zinc–air battery assisted self-powered electrochemical sensor for sensitive detection of microcystin-RR

Q. Wang, D. Jiang, X. Du, X. Shan, W. Wang, H. Shiigi and Z. Chen, Analyst, 2024, 149, 2291 DOI: 10.1039/D4AN00200H

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