CoFe2O4纳米颗粒活化过硫酸氢盐降解诺氟沙星
毕业论文关键词：CoFe2O4；活化；降解；诺氟沙星
CoFe2O4 nanoparticles activated persulfate degradation of norfloxacin
Abstract：Norfloxacin is one of the representatives of the third generation of fluoroquinolone antibiotics, widely used in medicine is sensitive to a variety of infections caused by sensitive bacteria, with strong tissue penetration, long half-life characteristics, in humans and animals The metabolism and absorption rate is low. China is the use of antibiotics and the use of large countries, fluoroquinolones antibiotics are widely used, in which the use of norfloxacin is very large, is widely used in medical care, intensive livestock breeding industry is also used as feed additives. The traditional bio-treatment technology is ineffective in the removal of fluoroquinolones in wastewater, and thus becomes one of the new pollutants frequently detected in the water environment. The presence of norfloxacin in the environment is not only toxic, but also induced by the emergence of super-resistant bacteria, causing harm to ecosystems. At home and abroad on the degradation of norfloxacin has made some progress, drawing on previous studies, we believe that the use of a catalyst to activate hydrogen sulfate to produce free radicals Novofloxacin is an effective degradation method.
Key words: CoFe2O4; Activation; Degradation; Norfloxacin
目 录
摘要 1
关键词 1
Abstract 1
Key words 1
引言 1
1 材料与方法 2
1.1 实验试剂与仪器 2
1.1.1 实验试剂 2
1.1.2 实验仪器 2
1.2 实验方法 2
1.2.1 CoFe2O4纳米颗粒的制备和表征 2
1.2.2 实验过程 3
2 结果与分析 3
2.1 CoFe2O4纳米颗粒催化活性的验证 3
2.2 PMS浓度对诺氟沙星降解速率的影响 4
2.3 CoFe2O4纳米颗粒用量对诺氟沙星降解速率的影响 5
2.4 pH值对CoFe2O4纳米颗粒催化活性的影响 5
2.5 温度对诺氟沙星降解速率的影响 6
2.6 自由基的鉴定 7
3 讨论 7
3.1 实验结果讨论 7
3.2 问题与思考 8
致谢 8
参考文献： 8
CoFe2O4纳米颗粒活化过硫酸氢盐降解诺氟沙星
引言：伴随着我国社会的飞速发展，关于抗生素类药物的研究也取得了许多突破，我国的抗生素类药物不仅年产量逐年上升，而且种类愈加繁多。诺氟沙星是第三代氟喹诺酮类抗生素的代表，在医学上被广泛应用在人畜因敏感菌所造成的多种感染。因其组织穿透力强、低毒、药物耐受性高和半衰期长而被大量使用。统计数据表明，大多数氟喹诺酮类抗生素进入体内后，只有不到25%可以在体内代谢，剩余的通过排泄物进入环境中，并渗透到地下水层。除此之外，含有诺氟沙星的工业废水也被排放到环境中。进入环境的诺氟沙星不仅具有毒性，会杀死一些菌群，导致生态环境受到破坏，而且会导致超强耐细菌的产生。因此，探究诺氟沙星高效降解的方法刻不容缓。