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Mechanism and Kinetic Analysis of the Degradation of Atrazine by O3/H2O2
In phosphate buffer, the degradation of ATZ by ozone/(O3/H2O2) under various circumstance was explored and the degradation mechanism and dynamics were probed. The findings revealed that when maintaining the reaction temperature at 25 °C, the H2O2 concentration and the O3 concentration were 20 mol/L and 20 mol/L, respectively. Moreover, the degradation rate of 5 mol/L ATZ under the influence of O3/H2O2 was 92.59% in phosphate buffer at pH7. The mechanism analysis showed that HO• and O3 underwent co-oxidized degradation and that the HO• and O3 oxidation degradation ratios were close to 1:1 under acidic conditions. Furthermore, HO• oxidative degradation dominated the ATZ degradation process. The kinetics analysis showed that the ATZ kinetics of O3/H2O2 degradation were more compatible with quasi-second-order reaction kinetics under different temperatures, pH values, and H2O2 concentrations.
Mechanism and Kinetic Analysis of the Degradation of Atrazine by O3/H2O2
In phosphate buffer, the degradation of ATZ by ozone/(O3/H2O2) under various circumstance was explored and the degradation mechanism and dynamics were probed. The findings revealed that when maintaining the reaction temperature at 25 °C, the H2O2 concentration and the O3 concentration were 20 mol/L and 20 mol/L, respectively. Moreover, the degradation rate of 5 mol/L ATZ under the influence of O3/H2O2 was 92.59% in phosphate buffer at pH7. The mechanism analysis showed that HO• and O3 underwent co-oxidized degradation and that the HO• and O3 oxidation degradation ratios were close to 1:1 under acidic conditions. Furthermore, HO• oxidative degradation dominated the ATZ degradation process. The kinetics analysis showed that the ATZ kinetics of O3/H2O2 degradation were more compatible with quasi-second-order reaction kinetics under different temperatures, pH values, and H2O2 concentrations.
Mechanism and Kinetic Analysis of the Degradation of Atrazine by O3/H2O2
Yixin Lu (author) / Chenghan Tang (author) / Yujie Liu (author) / Jiao Chen (author)
2022
Article (Journal)
Electronic Resource
Unknown
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