A novel non-enzymatic hydrogen peroxide sensor based on Co:ZnO modified electrodes

A novel non-enzymatic hydrogen peroxide sensor based on Co:ZnO modified electrodes

There is currently intense interest in the use of nanoparticles for a wide range of biomedical and technological applications. In this paper, the hierarchical Co doped ZnO nanoflowers were synthesized by a facile wet chemical method and explored as biosensing material. The as-modified novel hydrogen...

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Main Authors: Long Wang, Tong Wu, Han Wu, Jun Zhong, Ning Wang, Rongming Wang
Format: Article
Language:English
Published: Elsevier 2018-02-01
Series:Progress in Natural Science: Materials International
Online Access:http://www.sciencedirect.com/science/article/pii/S1002007117301855
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spelling doaj-ffc610e219ed4d7c85aa0135c806d6132020-11-24T21:23:17ZengElsevierProgress in Natural Science: Materials International1002-00712018-02-012812427A novel non-enzymatic hydrogen peroxide sensor based on Co:ZnO modified electrodesLong Wang0Tong Wu1Han Wu2Jun Zhong3Ning Wang4Rongming Wang5Department of Equipment Manufacture, Zhongshan Torch Polytechnic, Zhongshan 528436, ChinaNational Institute of Metrology, China, Beijing 100013, ChinaChina National Computer Products Quality Supervising Test Center Beijing, 100083, ChinaKey Laboratory for Carbon-Based Functional Materials and Devices, Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, ChinaCenter for Green Innovation, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 10083, China; Corresponding authors.Center for Green Innovation, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 10083, China; Corresponding authors.There is currently intense interest in the use of nanoparticles for a wide range of biomedical and technological applications. In this paper, the hierarchical Co doped ZnO nanoflowers were synthesized by a facile wet chemical method and explored as biosensing material. The as-modified novel hydrogen peroxide sensor exhibited a wide linear range (0.25–20 mM), highly reproducible response (R.S.D. of 2.7%) and long-term stability. The doping Co2+ ions carried out the oxidations rapidly and efficiently for the catalysis of hydrogen peroxide (H2O2). A high activity toward H2O2 in the presence of ascorbic acid (AA) and NaNO2, which are only common for natural enzymes, has also been demonstrated. The good analytical performance, low cost and straightforward preparation method makes this doped semiconductor promising for a wide range of potential applications in medicine, biotechnology and environmental chemistry. Keywords: Nonenzymatic H2O2 sensor, Co:ZnO, Nanoflowers, Electrocatalysishttp://www.sciencedirect.com/science/article/pii/S1002007117301855
collection DOAJ
language English
format Article
sources DOAJ
author Long Wang
Tong Wu
Han Wu
Jun Zhong
Ning Wang
Rongming Wang
spellingShingle Long Wang
Tong Wu
Han Wu
Jun Zhong
Ning Wang
Rongming Wang
A novel non-enzymatic hydrogen peroxide sensor based on Co:ZnO modified electrodes
Progress in Natural Science: Materials International
author_facet Long Wang
Tong Wu
Han Wu
Jun Zhong
Ning Wang
Rongming Wang
author_sort Long Wang
title A novel non-enzymatic hydrogen peroxide sensor based on Co:ZnO modified electrodes
title_short A novel non-enzymatic hydrogen peroxide sensor based on Co:ZnO modified electrodes
title_full A novel non-enzymatic hydrogen peroxide sensor based on Co:ZnO modified electrodes
title_fullStr A novel non-enzymatic hydrogen peroxide sensor based on Co:ZnO modified electrodes
title_full_unstemmed A novel non-enzymatic hydrogen peroxide sensor based on Co:ZnO modified electrodes
title_sort novel non-enzymatic hydrogen peroxide sensor based on co:zno modified electrodes
publisher Elsevier
series Progress in Natural Science: Materials International
issn 1002-0071
publishDate 2018-02-01
description There is currently intense interest in the use of nanoparticles for a wide range of biomedical and technological applications. In this paper, the hierarchical Co doped ZnO nanoflowers were synthesized by a facile wet chemical method and explored as biosensing material. The as-modified novel hydrogen peroxide sensor exhibited a wide linear range (0.25–20 mM), highly reproducible response (R.S.D. of 2.7%) and long-term stability. The doping Co2+ ions carried out the oxidations rapidly and efficiently for the catalysis of hydrogen peroxide (H2O2). A high activity toward H2O2 in the presence of ascorbic acid (AA) and NaNO2, which are only common for natural enzymes, has also been demonstrated. The good analytical performance, low cost and straightforward preparation method makes this doped semiconductor promising for a wide range of potential applications in medicine, biotechnology and environmental chemistry. Keywords: Nonenzymatic H2O2 sensor, Co:ZnO, Nanoflowers, Electrocatalysis
url http://www.sciencedirect.com/science/article/pii/S1002007117301855
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