大学化学 >> 2026, Vol. 41 >> Issue (5): 319-329.doi: 10.12461/PKU.DXHX202510077

所属专题： 第5届全国大学生化学实验创新设计大赛

专题 上一篇    

以废治废：回收锌锰电池负极材料催化糖解PET塑料的综合实验教学

冷芳雨, 张健, 张羽雯, 姜玉春, 常晓红, 魏杰   

  1. 辽宁大学化学院, 辽宁 沈阳 110036
  • 收稿日期:2025-10-21 录用日期:2026-03-03 发布日期:2026-05-21
  • 通讯作者: 姜玉春, 常晓红, 魏杰 E-mail:jiang34709@126.com;cxh@lnu.edu.cn;18809848370@163.com Yuchun Jiang, Xiaohong Chang, Jie Wei
  • 基金资助:
    辽宁大学研究生优质课程建设与教学模式综合改革研究项目(YJG202302101)

Waste-treat-waste: a comprehensive laboratory experiment on catalytic glycolysis of PET plastics using recycled anode materials from discarded Zn-Mn batteries

Fangyu Leng, Jian Zhang, Yuwen Zhang, Yuchun Jiang, Xiaohong Chang, Jie Wei   

  1. College of Chemistry, Liaoning University, Shenyang 110036, Liaoning Province, China
  • Received:2025-10-21 Accepted:2026-03-03 Published:2026-05-21
  • Contact: Yuchun Jiang, Xiaohong Chang, Jie Wei E-mail:jiang34709@126.com;cxh@lnu.edu.cn;18809848370@163.com

PDF

147

赞

补充材料

1

摘要： 碱性锌锰电池与聚对苯二甲酸乙二醇酯(PET)塑料的广泛使用产生了大量可回收废弃物。基于绿色化学的“资源循环利用”理念，本工作通过回收废旧锌锰电池负极材料(Zn/ZnO)高效催化糖解PET塑料，实现“以废治废”目标，设计出面向化学和近化学专业本科生的综合型教学实验。学生通过拆解电池，可直观认知锌锰电池结构，深化对化学电源工作原理的理解；通过PET糖解过程，学习高分子聚合反应的逆过程；结合有机化学实验中测定熔点的基础操作快速鉴定产物种类，并利用傅里叶红外光谱(FT-IR)、核磁共振氢谱(1H NMR)等表征技术解析单体结构，有助于深入理解聚合反应机理。本实验总计8学时，融合无机化学、物理化学、有机化学、高分子化学及分析化学的核心知识与实验技能。其操作简便、原料成本低廉、反应转化率高(PET转化率100%，对苯二甲酸双羟乙酯(BHET)产率76.5%)。在系统锻炼学生综合实验能力的同时，深入贯彻绿色化学教育理念。

关键词: 废旧锌锰电池回收, PET糖解, 绿色化学教育, 综合实验教学, 多相催化

Abstract: The extensive utilization of alkaline zinc-manganese batteries and poly(ethylene terephthalate) (PET) plastics has resulted in substantial quantities of recyclable waste. Guided by the “resource recycling” principle of green chemistry, this work achieves a waste-treats-waste approach by employing recycled anode materials (Zn/ZnO) from spent zinc-manganese batteries to effectively catalyze PET glycolysis. We have developed a comprehensive laboratory experiment tailored for undergraduate students in chemistry and related disciplines. Battery disassembly enables students to visually examine zinc-manganese battery structures, thereby deepening their understanding of electrochemical power sources. The PET glycolysis process demonstrates the depolymerization of macromolecules, while product identification combines fundamental organic chemistry techniques (melting point determination) with advanced characterization methods (Fourier transform infrared spectroscopy (FT-IR) and proton nuclear magnetic resonance (1H NMR)) for structural elucidation. This 8-hour experiment integrates core concepts and practical skills from inorganic, physical, organic, polymer, and analytical chemistry. Featuring straightforward procedures, cost-effective materials, and excellent reaction efficiency (100% PET conversion with 76.5% bis(2-hydroxyethyl) terephthalate (BHET) yield), the experiment not only enhances students’ comprehensive laboratory abilities but also effectively promotes green chemistry education principles.

Key words: Waste Zn-Mn battery recycling, PET glycolysis, Green chemistry education, Comprehensive laboratory experiment, Heterogeneous catalysis