The basic physical experiment of “determining the specific surface area of porous materials by flow adsorption method” has been improved from three aspects of instrument, content, and phenomena in view of the poor repeatability, the lack of single experimental content and less visual experimental phenomena. By replacing the flow control and display system and using the self-designed adsorption instrument, the stability of the experiment results is significantly improved. The application of the improved device in practical teaching shows that it can be popularized. On the basis, a typical application of porous materials in CO₂ capture has been introduced into the experiment in combination with the national “double carbon” strategy. Then visual experimental phenomena are added, and the color change of the indicator is used to judge the adsorption end point. This improved experiment combines cutting-edge science and technology with classic experiments, which embodies the teaching concept of integration of science, education and innovative development, so that students can understand the cutting-edge of science and technology, enhance their professional identity, and cultivate innovative thinking and scientific research ability.