Abstract:

In this paper, a comprehensive chemistry experiment named "Synthesis and purification performance of porous ZnO-g-C₃N₄ Z-scheme heterojunction for organic wastewater" is introduced. The cheap chemical reagents, including urea, ammonium chloride and zinc nitrate, are used as raw materials for preparing porous ZnO-g-C₃N₄ heterojunction, which is composed of ZnO and graphitic carbon nitride, with a direct calcination method. Furthermore, the heterojunction is analyzed by several techniques. Meanwhile, the adsorption capacity and photocatalytic activity for rhodamine B were investigated. This comprehensive experiment is helpful for improving the experimental operation skills of senior undergraduates, stimulating their interest in scientific research, cultivating their scientific research capabilities, and enhancing their environmental awareness and responsibility awareness.

Key words: ZnO-g-C₃N₄, Porous Z-scheme heterojunction, Adsorption, Photocatalysis, Organic wastewater