新工科背景下环境化学实验教学的改革与实践

doi:10.3866/PKU.DXHX202202017

Abstract

Abstract:

In the background of emerging engineering education, we tried to reform the environmental chemistry laboratory teaching which needs students to comprehensively apply many major knowledge of several different courses. We establish, reformed and explored the experiments from research topics. Practices prove that the reform can improve students' ability of autonomous participation in learning and practical innovation, and promote the organic integration of theoretical knowledge, comprehensive ability and comprehensive quality of students. This pilot study, can be helpful for the building of emerging engineering education.

Key words: Emerging engineering education, Environmental chemistry, Laboratory teaching, Reform and practice

Lan Huang, Wenyun Hu, Yunjun Mei. Reform and Practice of Environmental Chemistry Laboratory Teaching under the Background of Emerging Engineering Education[J].University Chemistry, 2023, 38(3): 70-74.

Figures/Tables 4

阶段	学习内容与任务	教学目标	实验目标	学习方式
准备	污染物迁移过程的基本原理，总结水环境中污染物的汇，引出废水中有机物污染的去除方法	提升学生收集、分析和整理资料的能力，理论联系实际的能力，自主学习能力	明确有机污染物治理的相关知识背景	查阅文献、收集资料、自学、写入预习报告
构思	有机废水的光降解原理、影响因素，就有机废水光降解效果提出初步假设(以茜红素为目标物)	提升学生对实际环境问题的研究能力，设计实验能力	了解有机污染物光降解的原理及影响因素	查阅文献、收集资料、自学、写入预习报告
设计	分组讨论，提出实验方案(指导教师审核)：提高光降解效果(敏化光解)；影响光降解的因素(单因子实验)；优化实验方案(正交实验)；降解效果的评定(茜红素的测定)	提升学生团队协作能力，解决问题能力，创新能力	学会进行实验方案的设计	查阅文献，收集资料并归纳总结、自学、小组讨论、汇报交流
实现	紫外分光光度计获取染料最大吸收波长；不同因素对TiO₂吸附染料的影响(初始浓度、TiO₂的用量、pH、光照时间等)；正交实验；数据处理	提升学生实践操作能力，解决问题能力，创新能力	掌握紫外分光光度计的原理及使用，掌握光降解的相关的影响因素	动手操作、利用Origin软件处理数据
运行	根据前期实验结果发现问题；小组分析讨论并进行交流反思；提出解决方案；利用优化条件进行染料废水的光降解	提升学生实践操作能力，解决问题能力，创新能力	测定有机物在紫外光作用下的降解速度，并求出降解速率常数	讨论沟通并实验，组间进行对比实验结果
汇报	撰写实验论文，并以报告形式对实验过程及结果进行汇报；评出最优小组	提升学生归纳总结和表达能力	制作PPT、撰写论文	组内讨论，组间交流学习

References 12

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评价阶段	评价标准	评价主体	权重(分)
实验前准备阶段	方案的科学性、完整性和可行性以及实验数据记录表格设置的合理性；药品用量的合理性；单因素设置的合理性；正交实验因素设置的正确性	指导教师	15
实验前准备阶段	组织分工情况，各自工作完成情况	组长和组员	5
实验阶段	出勤，操作规范性，实验习惯及实验结果	指导教师	25
	个人的安全意识及措施，实验仪器使用情况和实验室卫生情况	实验员教师	5
	实验中的表现(主动性、合作性等)	组长和组员	10
实验结束阶段	论文的格式、质量及论文的创新点；报告制作的质量等；汇报的情况	指导教师	20
	论文撰写及报告PPT制作过程中的表现	组长和组员	10
	小组学习过程中的表现	小组间	10

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Reform and Practice of Environmental Chemistry Laboratory Teaching under the Background of Emerging Engineering Education

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