Dual ion specific electrochemical sensor using aminothiazole-engineered carbon quantum dots
- Title
- Dual ion specific electrochemical sensor using aminothiazole-engineered carbon quantum dots
- Creator
- Keerthana P.; George A.; Bharath M.; Ghosh M.; Varghese A.
- Description
- A novel electrochemical sensor capable of concurrently detecting Pb2+ and Hg2+ ions has been innovatively engineered. This sensor utilizes the anodic stripping voltammetry technique (ASV) with a composite consisting of carbon quantum dots and aminothiazole (CQD-AT). In this composite, both the carbon quantum dots and aminothiazole contribute significantly to the electroactive surface area, boasting an abundance of functional groups that include oxygen and nitrogen atoms. These functional groups serve as active sites that enhance sensor sensitivity by facilitating the electrostatic interaction-based adsorption of heavy metal ions. Aminothiazole surface is evenly covered with CQDs, which are essential for metal gets reoxidized into metal ions for stripping analysis. Due to this unique modification, the Pb2+ and Hg2+ electrochemical sensor using the CQD-AT composite coated on carbon fiber paper electrode (CQD-AT/CFP) exhibits superior analysis performance such as wide linear range (0.6 1011160 106 M) for Pb2+ and Hg2+ with a limit of detection (LOD) of 3.0 pM and 6.2 pM for Pb2+ and Hg2+. CQD-AT/CFP modified electrode can be considered as a potential material for electrochemical simultaneous determination of Pb2+ and Hg2+ in different water samples. 2023 Elsevier B.V.
- Source
- Chemical Engineering Journal, Vol-480
- Date
- 2024-01-01
- Publisher
- Elsevier B.V.
- Subject
- Aminothiazole; Biomass-derived carbon quantum dots; Lead; Mercury; Square-wave anodic stripping voltammetry
- Coverage
- Keerthana P., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; George A., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India; Bharath M., Department of Chemistry, Ashoka University, Haryana, 131029, India; Ghosh M., Department of Chemistry, Ashoka University, Haryana, 131029, India; Varghese A., Department of Chemistry, CHRIST (Deemed to be University), Karnataka, Bangalore, 560029, India
- Rights
- Restricted Access
- Relation
- ISSN: 13858947; CODEN: CMEJA
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Keerthana P.; George A.; Bharath M.; Ghosh M.; Varghese A., “Dual ion specific electrochemical sensor using aminothiazole-engineered carbon quantum dots,” CHRIST (Deemed To Be University) Institutional Repository, accessed March 15, 2025, https://archives.christuniversity.in/items/show/13359.