Degradation of reactive brilliant red K-2BP in aqueous solution using swirling jet-induced cavitation combined with H₂O₂

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• 作者：Jingang Wang ; Xikui Wang ; Peiquan Guo ; Jiemei Yu
• 关键词：Degradation ; Reactive brilliant red K-2BP ; Swirling jet-induced cavitation ; Synergetic effect
• 刊名：Ultrasonics Sonochemistry
• 出版年：2011
• 出版时间：March 2011
• 年：2011
• 卷：18
• 期：2
• 页码：494-500
• 全文大小：586 K

文摘

The degradation of reactive brilliant red K-2BP (K-2BP) in aqueous solution by using swirling jet-induced cavitation, ultrasonic cavitation, and swirling jet-induced cavitation combined with H₂O₂, ultrasonic cavitation combined with H₂O₂ was investigated. An obvious synergetic effect between hydrodynamic cavitation and H₂O₂ was found and a variety of reaction parameters were investigated for the degradation of K-2BP. It was found that the degradation of K-2BP by hydrodynamic cavitation combined with H₂O₂ follows a pseudo-first-order kinetics. Higher temperature of medium, higher-pressure of fluid and higher concentration of H₂O₂ are favorable for the degradation of K-2BP, and lower medium pH, lower initial dye concentrations also favored K-2BP degradation. The degradation mechanism of reactive brilliant red K-2BP also discussed with the UV–Vis spectra of the dye solution at different degradation time.