کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
584837 | 877899 | 2007 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oxidation of acidic dye Eosin Y by the solar photo-Fenton processes
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
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چکیده انگلیسی
Oxidation of acidic dye Eosin Y has been investigated with Fenton process and photo-Fenton process (solar light or artificial light source). With UV-Fenton process and Fenton, 42.5% and 21.3% of dye could be removed from the water, respectively. However, 94.1% of dye was removed in solar-Fenton in 90 min. Based on solar-Fenton process, the effect of pH value and the concentration of dye, Fe2+, H2O2 as well as oxalic acid concentration on Eosin Y degradation efficiency were investigated. In 60 min, 96% of Eosin Y was degraded when the pH value was 3.5 and the concentration of Fe2+, H2O2 and oxalic acid was 10 mol/L, 600 mg/L and 300 mg/L, respectively. The Eosin Y degradation was dependent on the dye concentration. That is higher Eosin Y concentration resulted in lower degradation efficiency. Under the conditions of pH 3.5, the Eosin Y apparent kinetics equation was âdC/dt = 0.000249[Eosin Y]0.78[Fe2+]1.14[H2O2]1.26. Meanwhile, this research also proved that oxalic acid could improve the photocatalytic efficiency in the solar-Fenton process.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 141, Issue 3, 22 March 2007, Pages 457-464
Journal: Journal of Hazardous Materials - Volume 141, Issue 3, 22 March 2007, Pages 457-464
نویسندگان
Huaili Zheng, Yunxia Pan, Xinyi Xiang,