“Catch the CO2” – Carbon dioxide absorption in a school experiment as an example for gas absorption experiments in the classroom.

This article discusses a school experiment on carbon dioxide (CO2) absorption as an example of gas absorption experiments in the classroom. The experiment aims to illustrate the process of CO2 absorption and consider relevant factors such as temperature and concentration. Students can use a newly developed measuring system to independently carry out and quantify the absorption process. The experiment highlights the interdisciplinary work between the subjects of Science and Technology and Chemistry. The text describes an experiment on CO2 absorption using a sensor box and Arduino measurement device. The experiment involves connecting the components, setting the parameters, and measuring the CO2 concentration. The results can be displayed on an OLED display and recorded on an SD card. The experiment explores the absorption process using different parameters such as absorption medium, concentration, temperature, and amount of absorbent. The experiment is flexible and can be used for industrial CO2 purification or atmospheric CO2 reduction. The text also highlights the importance of sensor technology in visualizing invisible natural processes. The experiment is designed to be user-friendly and suitable for educational settings. [Extracted from the article]