石雄飞,高燊原,王晓钟,戴立言

• 1:浙江省化工高效制造技术重点实验室
• 2:浙江大学化学工程与生物工程学院

摘要(Abstract)：

以O_2选择性氧化甲苯转化为高附加值氧化物意义重大且具有挑战。为解决甲苯C(sp~3)-H难以活化问题，成功将无掺杂的g-C_3N_4应用于甲苯氧化反应，展现出优异的光催化氧化活性。经二次热剥离处理的g-C_3N_4，比表面积显著增大，可以提供更多的活性位点，同时促进了光生电子-空穴的有效分离与迁移，大的比表面积也有利于对甲苯和O_2的吸附。经优化后的光催化剂在400～410 nm光照条件下，以O_2为氧化剂，室温条件反应8 h，甲苯转化率为65.8%，苯甲醛和苯甲酸总选择性为86.2%，甲苯转化速率可达2 056μmol·（g·h)~(-1)。

关键词(KeyWords)： 甲苯;光催化;氧气氧化;热剥离;g-C_3N_4

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 石雄飞,高燊原,王晓钟,戴立言

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