大学化学 >> 2025, Vol. 40 >> Issue (6): 248-255.doi: 10.12461/PKU.DXHX202408068

所属专题： “双碳”战略与化学

化学实验 上一篇    下一篇

面向“双碳”目标的脱氯吸附剂开发研究型综合实验设计

张佳男, 许梦真, 刘嘉敏, 贺宇飞   

  1. 北京化工大学化学学院, 北京 100029
  • 收稿日期:2024-08-15 录用日期:2024-11-11 发布日期:2025-06-20
  • 通讯作者: 贺宇飞 E-mail:yfhe@mail.buct.edu.cn
  • 基金资助:
    国家自然科学基金(22078007)

Design of a Research-based Comprehensive Experiment for the Development of Dechlorination Adsorbents Aligned with Carbon Peaking and Carbon Neutrality Goals

Jianan Zhang, Mengzhen Xu, Jiamin Liu, Yufei He   

  1. College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2024-08-15 Accepted:2024-11-11 Published:2025-06-20
  • Contact: HE Yufei E-mail:yfhe@mail.buct.edu.cn

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摘要： 在“双碳”目标的引领下，针对废塑料循环经济中存在的脱氯问题，设计了具有“记忆效应”的层状脱氯吸附剂制备与性能测试研究型综合实验。具体实验过程包括：通过共沉淀法制备层状复合金属氢氧化物(LDHs)，随后对LDHs进行焙烧得到复合金属氧化物(LDO)，以其作为脱氯剂加入到正十二烷、NaCl、去离子水模拟的含氯环境中，多次取样测定其吸附性能，同时对吸附后的脱氯剂结构进行表征；吸附结束后，进行焙烧处理，再次测定其脱氯能力，多次重复该过程探究其稳定性。本实验是将科研成果引入教学实验的典型案例，不仅为新型可重复使用脱氯剂的研究提供新思路，而且有利于提高学生的环保意识和科学研究素养，激发他们进行科学研究的兴趣。

关键词: 双碳目标, 废弃塑料循环, 层状双氢氧化物, 氯脱除, 研究型综合实验

Abstract: Under the guidance of the goal of “carbon peaking and carbon neutrality”, aiming at the important problem of waste plastic recycling economy, using the characteristics of “memory effect” of layered double hydroxide (LDHs), we design a research-based comprehensive experiment on the preparation and performance test of dechlorinated adsorbents. The experimental process involves: firstly, synthesizing LDHs through a co-precipitation method and then roasting the LDHs to obtain composite metal oxides (LDO), finally introducing LDO as a dechlorination agent into a chlorinated environment simulated by n-dodecane, NaCl, and deionized water. The adsorption properties are measured at multiple stages, and the structural changes of the adsorbent are characterized. After the adsorption process, the adsorbent undergoes roasting, and its dechlorination performance is evaluated again. This cycle is repeated several times to assess the stability of the adsorbent. This experiment serves as a model for integrating scientific research into educational practice, providing novel approaches for the development of reusable dechlorination agents. Moreover, it enhances students’ environmental awareness, cultivates their scientific research literacy, and sparks their interest in research.

Key words: Carbon peaking and carbon neutrality goals, Waste plastic recycling, Layered double hydroxide, Dechlorination, Research-based comprehensive experiment