研究型实验“木质素/Fe_(3)O_(4)纳米颗粒的制备”的综合设计  

Design of Research-Type Experiment for Preparation of Lignin/Fe_(3)O_(4) Composite Nanoparticles and Its Practice

作　　者：郑大锋[1] 杨东杰[1] 钟定明 Zheng Dafeng;Yang Dongjie;Zhong Dingming(School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou,Guangzhou 510640,China)

机构地区：[1]华南理工大学化学与化工学院,广东广州510640

出　　处：《化学世界》2022年第1期47-50,共4页Chemical World

基　　金：2020年华南理工大学化工原理课程思政示范团队(No.x2hg-C9201047);2017年华南理工大学新工科研究(No.x2hg-Y1172370)资助项目。

摘　　要：以木质素、铁盐、亚铁盐为原料,首先将木质素胺化,然后调节溶液pH值,以共沉淀法制备木质素/Fe_(3)O_(4)纳米颗粒。实验结果表明,该方法操作简单,所制备的纳米颗粒粒径均匀、孔隙率高,可进一步用于吸附领域。该实验从内容设计、方案开发、结果分析等方面提高了学生的创新能力和实践能力。Lignin was aminated first followed by adjusting pH, and lignin/Fe_(3)O_(4)composite nanoparticles were prepared by co-precipitation. It was shown that the preparation was simple to operate, and the composite particles had uniform particle size and high porosity, which could be further used in the field of adsorption. This experiment can improve students’ creativity and practical ability from the aspects of experimental design, result analysis.

关 键 词：木质素 纳米颗粒 结构表征 研究型实验 创新能力 

分 类 号：G642.423[文化科学—高等教育学]