Abstract
We report the detection of volatile organic compound 1-cyclohexyl-2-pyrrolidone (CHP), in a bioelectrochemical system inoculated with Escherichia coli and supplemented with redox mediator 2-hydroxy-1,4-naphthoquinone (2-HNQ), using a functionalized carbon nanotube-coated screen-printed electrode (CNT-SPE) modified with –COOH and -NH2 functional groups. Addition of CHP decreased current output of the bioelectrochemical system, thus enabling rapid detection of CHP concentration. Under optimal conditions, the H2N-CNT-SPE was the best performing and a limit of detection (LOD) of 0.4 mg L−1 was achieved. The proposed sensor showed low interference from other inorganic and organic components. These results outline a viable strategy for detecting organic contaminants in environmental monitoring applications.
| Original language | English |
|---|---|
| Pages (from-to) | 604-611 |
| Number of pages | 8 |
| Journal | Electrochimica Acta |
| Volume | 317 |
| DOIs | |
| Publication status | Published - 10 Sept 2019 |
| Externally published | Yes |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 6 Clean Water and Sanitation
Free Keywords
- Bioelectrochemical systems
- Carbon nanotubes
- Escherichia coli
- Screen printed electrodes
- Volatile organic compounds
ASJC Scopus subject areas
- General Chemical Engineering
- Electrochemistry
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