It is shown that post-synthetic thermal treatment of graphitic carbon nitride (g-C3N4), obtained by pyrolysis of melamine, in molten potassium and lithium salts leads to a sixfold increase in its photocatalytic activity in the selective oxidation of benzyl alcohol by air to benzaldehyde in visible light at room temperature, and this is much higher when oxygen is used as oxidant. The conversion of benzyl alcohol and the selectivity for benzaldehyde under optimal conditions are 81% and 96%, respectively.

中文翻译：

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g-C3N4在可见光下对苯甲醇部分氧化的光催化活性

结果表明，通过三聚氰胺热解获得的石墨氮化碳 (g-C3N4) 在熔融钾盐和锂盐中的合成后热处理导致其在空气选择性氧化苯甲醇中的光催化活性增加六倍。室温下可见光下的苯甲醛，当使用氧气作为氧化剂时，苯甲醛要高得多。最佳条件下苯甲醇的转化率和苯甲醛的选择性分别为81%和96%。