An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode

Abstract In this proposed work, direct green 6 (DG6) decorated carbon paste electrode (CPE) was fabricated for the efficient simultaneous and individual sensing of catechol (CA) and hydroquinone (HY). Electrochemical deeds of the CA and HY were carried out by cyclic voltammetry (CV) and differential...

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Main Authors: K. Chetankumar, B. E. Kumara Swamy, S. C. Sharma, S. A. Hariprasad
Format: Article
Language:English
Published: Nature Portfolio 2021-07-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-93749-w
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author K. Chetankumar
B. E. Kumara Swamy
S. C. Sharma
S. A. Hariprasad
author_facet K. Chetankumar
B. E. Kumara Swamy
S. C. Sharma
S. A. Hariprasad
author_sort K. Chetankumar
collection DOAJ
description Abstract In this proposed work, direct green 6 (DG6) decorated carbon paste electrode (CPE) was fabricated for the efficient simultaneous and individual sensing of catechol (CA) and hydroquinone (HY). Electrochemical deeds of the CA and HY were carried out by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) at poly-DG6-modfied carbon paste electrode (Po-DG6-MCPE). Using scanning electron microscopy (SEM) studied the surface property of unmodified CPE (UCPE) and Po-DG6-MCPE. The decorated sensor displayed admirable electrocatalytic performance with fine stability, reproducibility, selectivity, low limit of detection (LLOD) for HY (0.11 μM) and CC (0.09 μM) and sensor process was originated to be adsorption-controlled phenomena. The Po-DG6-MCPE sensor exhibits well separated two peaks for HY and CA in CV and DPV analysis with potential difference of 0.098 V. Subsequently, the sensor was practically applied for the analysis in tap water and it consistent in-between for CA 93.25–100.16% and for HY 97.25–99.87% respectively.
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spelling doaj.art-d34a40b5afd246dba5248fcc22c842612022-12-21T20:39:15ZengNature PortfolioScientific Reports2045-23222021-07-0111111310.1038/s41598-021-93749-wAn efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrodeK. Chetankumar0B. E. Kumara Swamy1S. C. Sharma2S. A. Hariprasad3Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu UniversityDepartment of P.G. Studies and Research in Industrial Chemistry, Kuvempu UniversityNational Assessment and Accreditation Council (NAAC)Jain UniversityAbstract In this proposed work, direct green 6 (DG6) decorated carbon paste electrode (CPE) was fabricated for the efficient simultaneous and individual sensing of catechol (CA) and hydroquinone (HY). Electrochemical deeds of the CA and HY were carried out by cyclic voltammetry (CV) and differential pulse voltammetry (DPV) at poly-DG6-modfied carbon paste electrode (Po-DG6-MCPE). Using scanning electron microscopy (SEM) studied the surface property of unmodified CPE (UCPE) and Po-DG6-MCPE. The decorated sensor displayed admirable electrocatalytic performance with fine stability, reproducibility, selectivity, low limit of detection (LLOD) for HY (0.11 μM) and CC (0.09 μM) and sensor process was originated to be adsorption-controlled phenomena. The Po-DG6-MCPE sensor exhibits well separated two peaks for HY and CA in CV and DPV analysis with potential difference of 0.098 V. Subsequently, the sensor was practically applied for the analysis in tap water and it consistent in-between for CA 93.25–100.16% and for HY 97.25–99.87% respectively.https://doi.org/10.1038/s41598-021-93749-w
spellingShingle K. Chetankumar
B. E. Kumara Swamy
S. C. Sharma
S. A. Hariprasad
An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode
Scientific Reports
title An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode
title_full An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode
title_fullStr An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode
title_full_unstemmed An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode
title_short An efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode
title_sort efficient electrochemical sensing of hazardous catechol and hydroquinone at direct green 6 decorated carbon paste electrode
url https://doi.org/10.1038/s41598-021-93749-w
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