Citation: Yunchao Li, Shanying Chen, Ke Qi, Kangning Huo, Shuxin Li, Jingyi Li, Ying Wei, Louzhen Fan. A New Colloid Electrophoresis Experiment Incorporating Characteristics of Inquiry Learning and Ideological and Political Education[J]. University Chemistry, ;2024, 39(2): 47-51. doi: 10.3866/PKU.DXHX202308063 shu

A New Colloid Electrophoresis Experiment Incorporating Characteristics of Inquiry Learning and Ideological and Political Education

College of Chemistry, Beijing Normal University, Beijing 100875, China

Corresponding author: Yunchao Li, liyc@bnu.edu.cn
Received Date: 17 August 2023

This experimental case aims to address the limitations of traditional Fe(OH)₃ colloid electrophoresis experiments, such as the waste of Fe(OH)₃ colloids, the lack of exploration, and the difficulty in incorporating ideological and political education. To do so, we have developed a colloidal dissolution method, introduced AgI colloids with different surface charges and designed colloid surface charge exploring assays, thus rendering this experiment with the features of resource conservation, green development, and richness of inquiry. It is particularly important that this case has integrated multiple teaching modes (e.g., task-driven self-learning, flipped classroom, and deliberative teaching) to seamlessly combine this basic experiment with the improvement of the recycling ratio of China’s steel resources and the correction to students’ inherent knowledge on the surface charges of colloids. As a result, green chemistry concept, sustainability responsibility, scientific dialectical thinking skills, and innovation spirit can be implanted into the mind of students in a nature way during this experiment. This case has been initially applied to the colloid electrophoresis experimental taught in our university, achieving excellent teaching responses and mutual promotion effect between value shaping, knowledge imparting and ability cultivation. Hopefully, this case can provide helpful reference for enhancing the effect of professional education and ideological and political education in basic experiments.
- Fe(OH)₃ colloid,
- Colloid electrophoresis,
- Colloidal dissolution method,
- AgI colloid,
- Surface charge nature,
- Green chemistry,
- Inquiry learning,
- Ideological and political education
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