固废综合实验中探究性实验的教学设计——以eggshell-derived HAP制备及其吸附性能研究为例  

作　　者：石德智[1] 李莉[1] 袁荣焕[1] 

机构地区：[1]重庆大学环境与生态学院,重庆400045

出　　处：《高教学刊》2021年第13期75-79,共5页Journal of Higher Education

基　　金：2018年度重庆市高等教育教学改革研究重点项目(省级)“基于国家重大科技项目的生态环境类拔尖创新人才培养模式研究与实践”(编号:182064)。

摘　　要：基于蛋壳废物处理与资源化及环境功能材料开发的前沿方向,在本科固体废物处理综合实验中设置探索性实验。以鸡蛋壳废料为钙源,系统地设计了分别采用四种水热法合成蛋壳衍生羟基磷灰石(eggshell-derived HAP)的实验,比较分析受工艺类型、参数变化等影响下HAP的晶体性能差异,并通过系统设计吸附实验中的影响因素及其数据的动力学模型、等温吸附模型模拟,开展合成的HAP对重金属离子吸附性能和机理进行初步探究。详细分析了实验原理和工艺环节,给出了具体实验设计,并阐述了“课前预习准备-课上实验操作-课后探究分析”三个环节中的具体要求,以及各个环节对于促进学生掌握“工程知识”、提升“实践动手”水平、提高“分析问题”与“解决问题”能力的具体贡献。Based on the forward direction of research on the disposal or resource reuse of eggshell waste and the production of environmental functional materials,the exploratory experiment is set up in the course of solid waste treatment comprehensive experiment for undergraduate student.Chicken eggshell waste was used as calcium source,four methods were designed for hydrothermal synthesis of eggshell-derived hydroxyapatite(eggshell-derived HAP),with the aim of comparative studying the characteristics of HAP crystal affected by different type of synthesis process and levels of parameters.Furthermore,the adsorption mechanism of heavy metal irons by synthesized HAPs were explored,according to the application of batch adsorption experiments and the simulation of experimental data with kinetic models and isotherm models.The working principle and process are analyzed in detail,the specific experimental design are presented.The requirement in the three steps of preview before class,operation in class,and exploration after class,and correspondingly the contribution to the promotion of knowledge level,practical ability,and analyzing ability,and problem-solving ability.

关 键 词：蛋壳衍生羟基磷灰石 水热合成 探究性实验 实验教学设计 

分 类 号：G642[文化科学—高等教育学]