Development of Choline Chloride Modified Glassy Carbon Electrode for the Determination of Pentachlorophenol
| dc.contributor.advisor | Negash, Negussie (PhD) | |
| dc.contributor.author | Berhe, Meron | |
| dc.date.accessioned | 2022-03-29T09:12:10Z | |
| dc.date.accessioned | 2023-11-09T16:19:24Z | |
| dc.date.available | 2022-03-29T09:12:10Z | |
| dc.date.available | 2023-11-09T16:19:24Z | |
| dc.date.issued | 2021-07-19 | |
| dc.description.abstract | A simple, sensitive electrochemical sensor was developed for the determination of pentachlorophenol (PCP) using low cost and environmental friendly choline chloride (ChCl) modified glassy carbon electrode (GCE). The structural and electrocatalytic activities of the electrodes were characterized using Fourier transform infrared spectroscopy (FTIR), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The covalent attachment of ChCl on to GCE results in a stable positively charged choline chloride modified glassy carbon electrode (ChCl/GCE) with large effective surface area. The ChCl/GCE also showed a remarkable improvement for the oxidation activity of PCP, which results in enhancement in the current response compared to the bare GCE. Under optimum conditions, the square wave voltammetric current of PCP was proportional to its concentration in the linear range of 9 ×10 −9 to 1 ×10 −5 mol L−1 with a detection limit 4.45×10 −9 mol L−1 (S/N=3). The developed method was more sensitive and simple as compared with the literature reports. Additionally, it is also successfully applied for the determination of PCP in three different water samples collected from the river around the industrial area, the tap water and effluents from the pulp and paper industry. | en_US |
| dc.identifier.uri | http://etd.aau.edu.et/handle/12345678/30969 | |
| dc.language.iso | en | en_US |
| dc.publisher | Addis Ababa University | en_US |
| dc.subject | Choline Chloride | en_US |
| dc.subject | Pentachlorophenol | en_US |
| dc.subject | Cyclic Voltammetry | en_US |
| dc.subject | Square Wave Voltammetry | en_US |
| dc.title | Development of Choline Chloride Modified Glassy Carbon Electrode for the Determination of Pentachlorophenol | en_US |
| dc.type | Thesis | en_US |