壳聚糖金属铁衍生物的制备及对有机磷农药降解的研究-毕业论文（设计）.docVIP

PAGE 17 毕业设计（论文） 题 目 壳聚糖金属铁衍生物的制备及 对有机磷农药降解作用的研究 系 （院） 化学与化工系 专 业 化学工程与工艺 班 级 09级2班 学生姓名 学 号 2009022490 指导教师 职 称 讲师 二〇一三年六月二十三日 滨州学院学士学位论文 PAGE 21 壳聚糖金属铁衍生物的制备及对有机磷农药的降解作用的研究 摘 要 本文通过单因素实验，正交试验找到了制备壳聚糖金属铁（Ⅲ）配合物的最佳工艺条件，即：在pH=1.8，温度在40℃，反应时间6小时。并确定了各因素对其显著影响的顺序：pH值﹥反应时间﹥反应温度。 将敌敌畏溶液稀释1000倍，分成多份，并将壳聚糖金属配合物溶解成多份。做单因素实验，正交试验来确定壳聚糖金属配合物对农药的降解作用以及影响农药降解的因素。利用液相色谱分析发现最佳的农药降解条件是：在弱酸条件下，温度40℃左右，反应时间不少于20小时。结果发现壳聚糖金属铁配合物对有机磷农药的降解作用明显，降解效果很好。 关键词：壳聚糖；金属铁衍生物；有机磷农药；降解 Preparation of Chitosan metal iron derivatives and Studies on the degradation of organic phosphorus pesticide Abstract Through the single factor experiment and the orthogonal test,we find toptimum conditions on preparating of chitosan metal iron (III) complexes in this paper. The toptimum temperature is 40,the best pH is 1.8,and need reaction 6 hours.PH is the largest factor,then the reaction time and minium is the influence of reaction temperature. The DDVP solution is diluted 1000 times and divided into several parts, Chitosan metal complexes are dissolved into Multiple copies.The single factor experiment and the orthogonal test can determine the degradation of pesticides and Factors affecting the degradation of pesticides. Finding out the best pesticide degradation conditions of Using ultraviolet spectrophotometer is: About 40 ℃ under the condition of weak acid, temperature and reaction time of not less than 20 hours.The results showed that chitosan metal complex role in the degradation of organic phosphorus pesticide degradation significantly, the effect is very good. Keywords：chitosan;metallic iron derivatives;organophorus;pesticide degradation 目 录 TOC \o "1-3" \h \z \u HYPERLINK \l "_Toc359492848" 引 言 PAGEREF _Toc359492848 \h 1 HYPERLINK \l "_Toc359492849" 第一章 绪 论 PAGEREF _Toc359492849 \h 2 HYPERLINK \l "_Toc359492850" 1.1 研究背景 PAGEREF _Toc359492850 \h 2 HYPERLINK \l "_Toc359492851" 1.1.1有机磷农药及农药残留 PAGEREF _Toc359492851 \h 2 HYPERLINK \l "_Toc359492852" 1.1.2壳聚糖及其金属配合物