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Abstract：
The photodegradation of azithromycin present was carried out in water using H2O2 under UV irradiation. The reaction variables considered in this study were the amount of H2O2 solution and the initial concentration of azithromycin to evaluate the performance of the photodegradation process. The azithromycin degradation was not observed in the dark during stirring for 20 min. The study showed an efficient photodegradation of azithromycin using H2O2 as an oxidant in the presence of UV irradiation. The azithromycin degradation was altered significantly by the pH of the irradiated solution. The degradation was low at an acidic pH and showed an increasing trend as the pH changed to basic. The azithromycin degradation increased with a higher amount (higher concentration) of H2O2. The degradation of azithromycin decreased with a higher concentration of azithromycin in the reacting solution. The highest degradation of AZT was achieved in 1 h using a 1.0 ppm AZT solution containing 3 mL of H2O2. The experimental data obtained were well-fitted to zero-order reaction kinetics. The results of this study were found quite excellent. They showed 100% degradation in 1 h when compared with those reported in the literature, both with photocatalysis using nanomaterials and photolysis using light irradiation and/or H2O2. The UV/H2O2 system was found to be quite efficient for the photodegradation of azithromycin, and this system can be applied to degrade other organic pollutants present in industrial wastewater.
摘要：
存在的阿奇霉素的光降解是在紫外线照射下使用H2O2在水中进行的。在这项研究中考虑的反应变量是H2O2溶液的量和阿奇霉素的初始浓度，以评估光降解过程的性能。在搅拌20分钟期间,在黑暗中未观察到阿奇霉素降解。研究表明，在紫外线照射下，使用H2O2作为氧化剂可以有效地光降解阿奇霉素。辐照溶液的pH值显着改变了阿奇霉素的降解。在酸性pH下降解较低，并且随着pH变为碱性而显示出增加的趋势。随着H2O2的量增加(浓度增加),阿奇霉素的降解增加。随着反应溶液中阿奇霉素的浓度升高,阿奇霉素的降解降低。使用含有3mLH2O2的1.0ppmAZT溶液在1小时内实现了AZT的最高降解。获得的实验数据很好地拟合了零级反应动力学。发现这项研究的结果非常出色。与文献中报道的相比，它们在1小时内显示出100％的降解，使用纳米材料进行光催化和使用光辐射和/或H2O2进行光解。发现UV/H2O2系统对阿奇霉素的光降解非常有效，该系统可用于降解工业废水中存在的其他有机污染物。
