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Degradation of reactive brilliant red K-2BP in aqueous solution using swirling jet-induced cavitation combined with
Jingang Wang1, Xikui Wang, Peiquan Guo
1School of Chemistry and Chemical Engineering, University of Jinan, Jinan, China.
Abstract:
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 H(2)O(2), ultrasonic cavitation combined with H(2)O(2) was investigated. An obvious synergetic effect between hydrodynamic cavitation and H(2)O(2) 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 H(2)O(2) follows a pseudo-first-order kinetics. Higher temperature of medium, higher-pressure of fluid and higher concentration of H(2)O(2) 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.
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