铁基金属有机骨架材料去除刚果红的实验设计
Experimental design of removing Congo red by iron-based metal-organic framework material
付秋平 1王佳琳 1娄杰 1莫昌琍 1查磊1
作者信息
- 1. 贵阳学院 材料科学与工程学院,贵州 贵阳 550005
- 折叠
摘要
设计一个包含铁基金属有机骨架材料的合成、表征及吸附性能研究的完整综合型化学实验.以Fe(NO3)3·9H2O和均苯三甲酸(H3BTC)为原料,合成一种铁基金属有机骨架材料Fe-BTC.采用X射线衍射仪和紫外-可见分光光度计分别对Fe-BTC的物相及其对刚果红的吸附效果进行测试.系统研究了接触时间、刚果红初始浓度对Fe-BTC去除刚果红效果的影响.运用等温吸附模型和吸附动力学模型对Fe-BTC对刚果红的吸附行为展开分析.此实验难度适中,且综合性较强,有利于提升学生的实验综合能力与创新能力,激发学生的学习兴趣,培养学生的化学专业素养和环保意识.
Abstract
In this paper,a comprehensive chemical experiment involving the synthesis,characterization and adsorption properties of iron-based metal-organic framework material was designed.The iron-based metal-organic framework material Fe-BTC was synthesized by using Fe(NO3)3·9H2O and benzene-1,3,5-tricarboxylic acid(H3BTC)as raw materials.The phase of the composite Fe-BTC was characterized by the X-ray diffractometer(XRD).The ad-sorption effect of Fe-BTC on Congo red was tested by ultraviolet-visible spectrophotometer.The effect of contact time and initial concentration of Congo red on removing Congo red by iron-based metal-organic framework material Fe-BTC were discussed systematically.The results showed that the adsorption capacity of dye onto Fe-BTC increased with the increasing of dye concentration.The adsorption behavior of Congo red by Fe-BTC was analyzed by using the iso-thermal adsorption model and the adsorption kinetics model.This experiment has a moderate difficulty and strong com-prehensiveness,which is conducive to improving students'comprehensive experimental ability and innovation ability,stimulating students'learning interest,and cultivating students'chemical professionalism and environmental awareness.
关键词
综合化学实验/吸附/金属有机骨架材料/Fe-BTC/刚果红Key words
Comprehensive chemical experiment/Adsorption/Metal-organic framework material/Fe-BTC/Congo red引用本文复制引用
出版年
2024
NETL
NSTL
万方数据