论文总字数：18025字

摘 要

环丙沙星是一种抗生素，由于这种抗生素对革兰氏阳性菌和阴性菌都具有一定阻碍作用，所以经常用于治疗由于这两类菌所引起的疾病。从环丙沙星被发现以来就大量被用于人类活动中，然而这类抗生素不易在环境中被降解，因此在环境中经常被检测出。环丙沙星在环境中的残余会危害人类和动物的健康，影响人类赖以生存的环境。

目前，很少有关于用UV/PMS(紫外/单过硫酸氢盐)体系降解环丙沙星的效果和影响因素的研究。本实验采用轮胎碳负载两种不同比例的金属在UV/PMS体系下降解水中的环丙沙星，主要讨论轮胎碳负载两种不同金属和不同轮胎碳催化剂的量、过硫酸氢钾的量、初始pH值、反应光强对水中环丙沙星的去除率。

实验结果表明，轮胎碳催化剂的UV/PMS体系对降解环丙沙星具有良好的效果，当负载4.9%的Cu和0.1%的Ce的轮胎碳催化效果最好，催化剂的投加量和过硫酸氢钾的投加量分别为0.2 g和0.14 g、反应光强为1000 W、初始pH为11的条件下对水中环丙沙星的去除效果最好。

关键词：环丙沙星 轮胎碳催化剂 过硫酸盐 初始pH 光强

Preparation of Carbon-based Photocatalyst for Tire and Study on the Degradation Mechanism of Ciprofloxacin in UV/PMS System

Abstract

Ciprofloxacin is an antibiotic that is often used to treat diseases caused by these two types of bacteria because of its obstructive effect on gram-positive and negative bacteria. Since the discovery of ciprofloxacin has been heavily used in human activities, however, such antibiotics are not easily degraded in the environment and are therefore often detected in the environment. The remnants of ciprofloxacin in the environment can endanger the health of human beings and animals and affect the environment in which human beings depend for their survival.

At present, there is little research on the effect and influencing factors of the degradation of ciprofloxacin with UV/PMS (ultraviolet/slip hydrogen sulfate) system. In this experiment, two different proportions of metal with tire carbon load were used to degrade ciprofloxacin in water under the UV/PMS system, which mainly discussed the amount of two different metals and different tire carbon catalysts, the amount of potassium hydrogen sulfate, the initial pH value and the removal rate of ciprofloxacin in water.

The experimental results show that the UV/PMS system of tire carbon catalyst has a good effect on the degradation of ciprofloxacin, and when the 4.9% load of Cu and 0.1% Cu has the best carbon catalysis effect, the amount of catalyst and the addition of potassium hydrogen sulfate are 0.2 g and 0.14 g respectively, the reaction light intensity is 1000 W, The removal of ciprofloxacin in water is the best under the condition of initial pH 11.

Key Words: Ciprofloxacin; Tire Carbon Catalyst; Persulfate; Initial pH; Light Intensity

目 录

摘 要 I

Abstract II

第一章 文献综述 1

1.1 抗生素的环境归趋 1

1.1.1 抗生素的污染现状 1

1.2 环丙沙星的性质 1

1.2.1 环丙沙星发展历史 1

1.2.2 环丙沙星的基本性质 2

1.2.3环丙沙星对人体的危害 2

1.3 环丙沙星去除技术 2

1.3.1 吸附法 2

1.3.2化学氧化法 3

1.3.3生物处理法 3

1.3.4光化学氧化技术 3

1.4 研究目的及内容 4

1.4.1 研究目的 4

1.4.2 研究内容 4

第二章 实验内容 5

2.1 实验试剂与设备 5

2.2 溶液配制 6

2.3 催化剂制备方法 6

2.4 实验分析方法 7

2.4.1分光光度法分析环丙沙星溶液 7

2.5 实验步骤 9

2.5.1 吸附实验 9

2.5.2 四种不同催化剂的选定实验 9

2.5.3 UV/PMS体系的过硫酸氢钾投加量的选定实验 9

2.5.4 UV/PMS体系的催化剂含量选定实验 10

2.5.5 UV/PMS体系的初始pH值得选定实验 10

2.5.6 UV/PMS体系的光强选定实验 10

第三章 实验结果 12

3.1 不同催化剂的吸附 12

3.2 不同催化剂对UV/PMS体系的影响 12

3.3 不同过硫酸氢钾投加量对UV/PMS体系的影响 14

3.4 不同量催化剂对UV/PMS体系的影响 15

3.5 不同初始pH对UV/PMS体系的影响 16

3.6 不同光强对UN/PMS体系的影响 17

第四章 总结与展望 19

参考文献 20

致谢 23

第一章 文献综述

1.1 抗生素的环境归趋

1.1.1 抗生素的污染现状

抗生素在人类和动物的生存活动中发挥着重要作用，低浓度的抗生素也能影响生物的生理功能^[1]，随着抗生素种类的不断扩大，抗生素的使用范围和使用量也日渐增多，导致环境中抗生素的残余量增加^[2]。

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