Abstract:

With the backdrop of "Carbon peaking and carbon neutrality goals", the development of renewable energy and solar energy storage has gained countless attention recently. However, the lack of experiments involving energy conversion in undergraduate curricula has limited students' understanding of low-carbon and green chemistry to remain largely theoretical. This experimental protocol aims to synthesize hydrogen peroxide (H₂O₂), utilizing the solar-to-chemical conversion, all while aligning with cutting-edge scientific advancements. The entire experimental process refrains from the use of any toxic or hazardous reagents, truly embodying the principles of green and low-carbon chemistry. Illustrating with the synthesis of graphitic carbon nitride (g-C₃N₄) nanosheets via dicyandiamide, this experiment delves into the mechanism of polymerization reaction. This approach integrates fundamental operations from inorganic, physical, and analytical chemistry, coupled with modern analytical methods, to conduct open-ended comprehensive experiments on the g-C₃N₄ catalyzed generation of H₂O₂ and quantification. By combining the polymerization reaction of inorganic and organic materials within an aerobic experimental environment and employing UV spectrophotometry for yield measurement, this experiment effectively enhances students' comprehensive qualities and innovative abilities, achieving the goal of "integrating current affairs into teaching and cultivating well-rounded students".

Key words: Solar light, H₂O₂, Polymerization, Green synthesis