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A graphene-printed paper electrode for determination of H2O2 in municipal wastewater during the COVID-19 pandemic.
- Source :
-
New Journal of Chemistry . 1/21/2022, Vol. 46 Issue 3, p1362-1370. 9p. - Publication Year :
- 2022
-
Abstract
- Recently, hydrogen peroxide (H2O2) has been used as a disinfectant in sanitizers for cleaning hands, and solid surfaces of hospitals, offices and homes to prevent the spread of the COVID-19 virus. The effluents from domestic, hospital and municipal waste should be monitored for their H2O2 content to avoid the entry of this toxic pollutant into the ecosystem. Therefore, we developed a low-cost graphene (Gr)-printed paper electrode for determination of H2O2 using cyclic voltammetry (CV). An office inkjet-printer and Gr nano-ink stabilized with ethyl cellulose (EC) were used for the fabrication of printed paper electrodes (PPEs) to determine H2O2 quantitatively. A stable Gr–EC nano-ink (2%) with viscosity and surface tension values of 12 mPa S−1 and 35 mN M−1, respectively, was formulated to obtain conductive electrodes. A wide linear range (2 μM–25 mM) with a better limit of detection (0.28 μM) for the determination of H2O2 was obtained when the Gr–EC/PPE was used as a working electrode. Further, the Gr–EC/PPE was successfully employed for analysis of H2O2 in wastewater. The electrochemical determination of H2O2 using the Gr–EC/PPE as an electrode in CV is rapid, economical, flexible and eco-friendly when compared with previously reported methods. [ABSTRACT FROM AUTHOR]
- Subjects :
- *COVID-19 pandemic
*ETHYLCELLULOSE
*ELECTRODES
*SEWAGE
*SURFACE tension
Subjects
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 46
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 154734402
- Full Text :
- https://doi.org/10.1039/d1nj05763d