聚苯胺的合成及其对六价铬吸附实验研究

Experimental research on synthesis of polyaniline and its adsorption of Cr(Ⅵ)

用化学氧化聚合法合成聚苯胺并对产品进行表征,采用氧化还原滴定法研究了聚苯胺对Cr(VI)的吸附性能,分析了聚苯胺粒径、加入量、吸附时间以及初始铬浓度对吸附的影响,构成了一个集合成、表征与应用于一体的综合实验。该实验涉及到有机高分子合成及表征、分析化学和表面吸附等理论知识,包含合成操作、滴定分析、数据处理等化学实验基本技能,可作为化学专业学生的综合实验,有利于巩固学生的理论知识,提高学生独立自主分析问题和解决问题的能力。

The polyaniline is synthesized by the chemical oxidation polymerization and characterized.The adsorption performance of Cr(VI)on the polyaniline is studied by the redox titration method.The effect of particle size,the dosage of adsorbent,the adsorption time and concentration of Cr(VI)are discussed.These experiments include the synthesis,characterization and application,which form a comprehensive experiment. This comprehensive experiment not only involves organic polymer synthesis,characterization,analytical chemistry and surface adsorption theory knowledge,but also includes many basic chemical experiment skills such as synthesis operation,titration analysis,and data processing.It can be used as a comprehensive experiment for students majoring in chemistry,which is beneficial to strengthen students' theoretical knowledge and improve students' independent ability to analyze and solve problems.