| Sonochemical Decolorization of Methyl Orange in Aqueous Solution |
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| 作者姓名： | 邢铁玲 Chu K. H. 陈国强 |
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| 作者单位： | [1]School of Material Engineering,Soochow University, Suzhou 215021 [2]Department of Chemical and Process Engineering, University of Canterbury, New Zealand |
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| 基金项目： | Acknowledgments T. X. thanks the China Scholarship Council for financial support. The hospitality of the Department of Chemical and Process Engineering is gratefully acknowledged. |
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| 摘 要： | The sonochemical decolorization of Methylene Orange was studied using a 24 kHz Ultrasound device with a 1.4 cm diameter horn. pH, power density, the effects of pH and power density on decolorization were discussed. The combined effect of radiate time, the initial concentration of dyes and the addition of Fe^2＋ on the decolorization was studied using response surface methodology. The results showed that the factorial central composite design was successfully employed for experimental design and predication of the results. AtpH = 2.8, T=30℃, power denstity= 300 W/L and Fe^2＋ of 2 mg/L, the decolorization percentage of 5 mg/L dye solution reached 96% after 60 mill ultreatment. The rate of decolorization of the dye was greatly improved in the presence of Fe^2＋. The sonolysis of the dye followed first-order kinetics.
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| 关 键 词： | 水溶解 甲基 声化学 染色技术 |
| 收稿时间： | 2006-07-14 |
Sonochemical Decolorization of Methyl Orange in Aqueous Solution |
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| XING Tie-ling,Chu K.H,CHEN Guo-qiang.Sonochemical Decolorization of Methyl Orange in Aqueous Solution[J].Journal of Donghua University,2006,23(5):127-130. |
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| Authors: | XING Tie-ling Chu KH CHEN Guo-qiang |
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| Abstract: | The sonochemical decolorization of Methylene Orange was studied using a 24 kHz Ultrasound device with a 1.4 cm diameter horn. pH, power density, the effects of pH and power density on decolorization were discussed. The combined effect of radiate time, the initial concentration of dyes and the addition of Fe2+ on the decolorization was studied using response surface methodology. The results showed that the factorial central composite design was successfully employed for experimental design and predication of the results. AtpH = 2.8, T=30℃, power denstity= 300 W/L and Fe2+ of 2 mg/L, the decolorization percentage of 5 mg/L dye solution reached 96% after 60 min ultrasound treatment.The rate of decolorization of the dye was greatly improved in the presence of Fe2+. The sonolysis of the dye followed first-order kinetics. |
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| Keywords: | sonochemical methyl orange dyes decolorization response surface methodology |
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