Effect of various sono-oxidation parameters on the removal of aqueous 2,4-dinitrophenol

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• 作者：Guo ; Zhaobing ; Zheng ; Zheng ; Zheng ; Shourong ; Hu ; Wenyong ; Feng ; Ruo
• 关键词：Ultrasound ; Fenton reagent ; Degradation of 2 ; 4-dinitrophenol
• 刊名：Ultrasonics - Sonochemistry
• 出版年：2005
• 出版时间：August, 2005
• 年：2005
• 卷：12
• 期：6
• 页码：461-465
• 全文大小：276 K

文摘

The influences of ultrasonic output intensity, solution pH, H₂O₂ concentration and the addition of Fenton reagent on the degradation of 2,4-dinitrophenol (DNP) under ultrasonic irradiation were investigated. It was observed that the degradation of DNP fitted pseudo-first-order dynamics under our experimental conditions. Increasing the ultrasonic output intensity increased the degradation efficiency of DNP and low pH favored the ultrasonic degradation of DNP. The addition of H₂O₂ enhanced the ultrasonic degradation efficiency of DNP. The further addition of Cu²⁺, however, hindered the degradation of DNP. In contrast, sono-oxidation treatment in combination with FeSO₄/H₂O₂ showed a synergistic effect for DNP degradation.