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Document Type |
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Thesis |
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Document Title |
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Electrochemical Detection of Hydrazine in Marine Water Using Chemically Modified Electrode تعيين الهيدرازين بالطرق الكهروكيميائية في المياه البحرية باستخدام اليكترود كيميائي معدل |
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Subject |
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Faculty of Marine Sciences |
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Document Language |
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Arabic |
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Abstract |
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Recently, the excessive use of chemicals, monitoring of the released various organic and inorganic pollutants to our aquatic environment has received considerable interest. Hydrazine finds its way into the marine environment. Since its presence in the environment leads to many severe health complications, several analytical methods have been developed for detection of it. However, due to cost, complicated handling, and portability, conventional analytical methods are not preferred for routine and in-field analysis. Herein, a simple, fast, inexpensive, and sensitive method based on electrochemical detection is presented. For this purpose, Cu-GO and Fe2O3-Gr catalytic material was synthesized. Using as-prepared Cu-GO or Fe2O3-Gr suspension in deionized water, a modified glassy carbon electrode (GCE) was fabricated via drop coating method. The fabricated electrode was tested for hydrazine and seawater samples for their electrochemical oxidation behavior. The composites of Cu-GO and Fe2O3-Gr with other catalytic materials were also prepared and tested against hydrazine solution and seawater. The morphology and structural features of as-synthesized Cu-GO and Fe2O3-Gr were characterized using UV-visible spectroscopy (UV-Vis), X-ray Diffraction (XRD), and Scanning Electron Microscopy (SEM). The charge transfer properties of Fe2O3-Gr modified GCE was evaluated with electrochemical impedance spectroscopy (EIS). The cyclic voltammetry (CV) was utilized to assign redox behavior and current-potential relation of Cu-GO and Fe2O3-Gr. The stability and reproducibility of the modified electrode were assigned. The analytical utility of the modified electrode was used for trace determination of hydrazine in real water samples. |
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Supervisor |
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Dr. Mohamed I. Orif |
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Thesis Type |
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Master Thesis |
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Publishing Year |
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1443 AH
2022 AD |
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Co-Supervisor |
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Dr. Muhammad Tahir Soomro |
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Added Date |
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Sunday, January 8, 2023 |
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Researchers
| ندى محمد الشريف | Alshareef, Nada Mohammed | Researcher | Master | |
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