氮化碳光催化分解水制氢性能研究

摘要

以三聚氰胺为原材料,经过煅烧和研磨处理制备可用于光催化水制氢的石墨相氮化碳(g-C3N4).然后在模拟太阳光的条件下,通过已磨和未磨两组样品的对照实验来检测氮化碳(g-C3N4)的催化性能.结果表明:已磨的石墨相氮化碳(g-C3N4)催化性能较好,未磨的石墨相氮化碳(g-C3N4)性能较差.已磨的石墨相氮化碳作为光催化剂参与反应3h制得产氢量为406μmol,而未磨的氮化碳在同样的情况下制得氢气为261μmol.%Use melamine as raw material and by mean of calcination and grinding,to prepare carbon nitride, which can be used for photocatalysis of produce hydrogen. And then determine its catalytic performance in the con-dition of simulate sunlight by mean of non-grinding and grinding samples as contrast experiment. The results showed that the catalytic performance of grinding carbon nitride was better than that of non-grinding sample. And the grind-ing carbon nitride as photocatalyst produced 0. 406μmol hydrogen in 3 hours. In the same situation non-grinding carbon nitride produced 0. 261μmol hydrogen.