Electroanalysis of Methylene Blue Using Clay-modified Electrode Method
碩士 === 國立中興大學 === 土壤環境科學系所 === 99 === Methylene blue was wildly used as a redox indicaor and photosensitizer in analytical chemistry, and that could be a model compound of mobilization and transportation in the environment. We studied electrochemical behavior of methylene blue using the technology o...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2011
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| Online Access: | http://ndltd.ncl.edu.tw/handle/02233664399812084453 |
| Summary: | 碩士 === 國立中興大學 === 土壤環境科學系所 === 99 === Methylene blue was wildly used as a redox indicaor and photosensitizer in analytical chemistry, and that could be a model compound of mobilization and transportation in the environment. We studied electrochemical behavior of methylene blue using the technology of of eletroanalysis coupled with clay-modified electrode, and changed scan rate to study the migration of methylene blue in clay films. The results indicated the redox amounts of methylene blue were apparently affected by scan rate, and the cyclic coltammgrams were also affected by different layer charge of clay minerals. Redox potential shifted to more positive potential when methylene blue coexisted with hydroquinone in the electrolyte, and redox potential also shifted to more positive potential when actinomyces was added to methylene blue solution. Lower peak currents were detected in the methylene blue solution using smectite-modified electrode and higher peak currents were detected using other modified electrodes. The results showed hydroquinone and actinomyces could affect telectrochemical behavior of methylene blue in the clay films and the peak currents of methylene blue were apparently affected by smectite-modified electrodes.
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