引用本文:
蔡邦宏, 潘海燕, 冯达英. UV/H2O2体系中SF Blue染料的降解动力学[J]. 应用化学,
2010, 27(5): 544-548.
doi:
10.3724/SP.J.1095.2010.90348
Citation: CAI Bang-Hong, PAN Hai-Yan, FENG Da-Ying. Degradation Kinetics of Dye SF Blue in UV/H2O2 System[J]. Chinese Journal of Applied Chemistry, 2010, 27(5): 544-548. doi: 10.3724/SP.J.1095.2010.90348
Citation: CAI Bang-Hong, PAN Hai-Yan, FENG Da-Ying. Degradation Kinetics of Dye SF Blue in UV/H2O2 System[J]. Chinese Journal of Applied Chemistry, 2010, 27(5): 544-548. doi: 10.3724/SP.J.1095.2010.90348
UV/H2O2体系中SF Blue染料的降解动力学
English
Degradation Kinetics of Dye SF Blue in UV/H2O2 System
Abstract:
The degradation efficiency,influencing factors and kinetics of SF Blue dye in UV/H2O2 system were investigated.The results show that UV/H2O2 has a high activity on the dye degradation.The degradation ratio at 60 min is 98% for the system containing 0.5 mL 5% H2O2 in 150 mL 100 mg/L dye solution.The photodecomposition reaction of the dye is accompanied with photooxidative degradation.The results also show that the photooxidative degradation of the dye in UV/H2O2 system is a first-order reaction with an activation energy of 5.17 kJ/mol and a pre-exponential factor of 0.168 min-1 the photodecomposition of the dye in UV system is also a first-order reaction with an activation energy of 16.9 kJ/mol and a pre-exponential factor of 1.04 min-1. In addition,the best degradation efficiency of the dye could be achieved under a strong alkaline condition with initial pH of the dye solution around 12.
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Key words:
- hydrogen peroxide
- / photodegradation
- / SF Blue
- / reaction rate constant
- / activation energy
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