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摘要：抗生素是目前世界上用量大且运用很广泛的一种药物，并且其化合物在水体等其他环境中不断被发现，成为目前一种亟待解决的新型环境污染物。本论文研究对象为当前临床应用较为广泛的第三代喹诺酮抗生素(氟喹诺酮类)的代表药物之一——氧氟沙星(OFLX),氧氟沙星的喹诺酮环很稳定并且具有一定强度的抗水解能力导致其成为一种较为持久的水体污染物。[1]目前，高级氧化技术对那些有毒有害、可生化性低、难降解的有机污染物有较好的降解效果。[2]其中以产生羟基自由基( HO•) 为主的Fenton 高级氧化法已成熟应用于实际污水处理中。[3]但是该方法也有一些很明显的缺点，例如化学试剂用量大、成本较高、PH环境要求苛刻、反应产生的化学污泥量较大等。这些缺点制约了芬顿法的进一步发展，而相对于芬顿法，近些年发展出一种新型的基于硫酸根自由基的高级氧化技术能很好的克服这些缺点。和羟基自由基相比较，硫酸根自由基具有更高的氧化还原电位、对反应的酸碱度要求较为宽泛、反应产生的化学污泥量较少、操作简单易行等优点。[4]本实验探讨使用过渡金属Co2+活化PMS降解水体中氧氟沙星的效率，实验的分析仪器采用高效液相色谱仪。通过反应后与空白对照组的污染物残留峰面积之比计算出污染物的降解效率。26644
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毕业论文关键词：氧氟沙星；高级氧化法；过渡金属Co2+；高效液相色谱
Co3O4 Activated PMS Degradation of Ofloxacin in Water
Abstract： Antibiotics are currently in the world and the use of a wide range of drugs and its compounds in the water and other environments continue to be found as a current need to address the new environmental pollutants. In this paper the object of this study is the most widely used third-generation quinolone antibiotics (fluoroquinolones) one of the representative drugs - ofloxacin (OFLX) ofloxacin quinolone ring is very stable and has a certain strength The ability to resist hydrolysis causes it to become a more persistent water pollutant. At present advanced oxidation technology has good degradation effect on organic pollutants which are toxic and harmful biodegradable and difficult to degrade. Among them Fenton higher oxidation method based on hydroxyl radical (HO •) is mature and applied to reality Sewage treatment. However the method also has some obvious shortcomings such as the large amount of chemical reagents high cost PH environment demanding the reaction of the larger amount of chemical sludge generated. These shortcomings constrain the further development of Fenton's law and compared to Fenton's law in recent years the development of a new type of sulfate-based radical oxidation technology can overcome these shortcomings. Compared with hydroxyl radicals sulfate radicals have higher oxidation and reduction potentials the requirements of the reaction pH is broader the reaction produces less chemical sludge easy operation and so on. In this experiment the effect of transition metal Co2 activated PMS on the degradation of ofloxacin in water was discussed. The analytical instrument was analyzed by high performance liquid chromatography. The degradation efficiency of the pollutants was calculated by comparing the residual peak area of the contaminants with the blank control group after the reaction.
Key words: Ofloxacin; Advanced Oxidation; Transition Metal Co2+; High Performance Liquid
目 录
摘要1
关键词1
Abstract1
Key words1
引言1
1 材料与方法2
1.1 实验材料与器械 2
1.2 试验方法 2
1.2.1 实验试剂的配制2
1.2.2 氧氟沙星的测定方法2
1.2.3不同条件下的降解效率影响2
2 结果与分析3
2.1 PMS浓度对降解效率的影响3
2.2 Co3O4投加量对降解效率的影响4
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