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Photodecomposition of direct red 81 (5-solamin) by using nano sized zinc oxide deposited on glass beads in neutral and alkaline pH and various atmospheres | ||
| Iranian Journal of Environmental Technology | ||
| مقاله 7، دوره 1، شماره 1، شهریور 2015، صفحه 49-54 اصل مقاله (460.35 K) | ||
| شناسه دیجیتال (DOI): 10.22108/ijet.2015.15583 | ||
| نویسنده | ||
| Hamid Reza Ebrahimi* | ||
| Assistant Professor of Inorganic chemistry department of Chemistry, Majlesi Branch, Islamic Azad University, Isfahan, Iran | ||
| چکیده | ||
| This research describes photo degradation of direct red 81(5-solamin) in the presence of zinc oxide nano-sized catalyst supported on granule glass under UV light irradiation. The effects of some parameters such as various pH and different atmosphere on photo degradation efficiency were studied. After various experiments it was revealed that among various atmospheres, at neutural medium, oxygen and air and at alkaline medium nitrogen and oxygen were found as the best atmosphere for photo-degradation. The rate constants of 0.007, 0.004, 0.001 and 0.001 mg/L.min were evaluated for air, oxygen, nitrogen, and argon atmospheres respectively at neutral while the rate constant values of 0.005, 0.004, 0.001 and 0.001 mg/L.min were found for alkaline conditions in the presence of nitrogen, oxygen, air, and argon atmospheres respectively. | ||
| کلیدواژهها | ||
| Direct red 81(5؛ Direct red 81(5-solamin)؛ solamin)؛ Photo degradation efficiency؛ UV light؛ Nano ZnO | ||
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آمار تعداد مشاهده مقاله: 838 تعداد دریافت فایل اصل مقاله: 728 |
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