无掺杂 g-C3N4 促进光催化甲苯氧化
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文章编号：1003-9015（2025）01-0085-10
中图分类号：TQ203.2 文献标志码：A DOI：10.3969/j.issn.1003-9015.2025.01.010
Abstract：Selective oxidation of toluene into high value-added oxides is significant and challenging with U2 .An undoped g C3N4 was prepared by a simple thermal exfoliation method to solve the dificulty of toluene C（sp³）-H activation，which showed excellent photocatalytic activity. The specific surface area of g 0 3N4 was significantly increased after secondary thermal exfoliation treatment，which provides more active sites and promotes the effective separation and migration of photogenerated electron-holes.The large specific surface area is conducive to the adsorption of toluene and 02 .The optimized photocatalyst displays 86.2% total selectivity of benzaldehyde and benzoic acid，with 65.8% conversion under 400～410 nm light irradiation for 8h at room temperature using 02 as oxidant ， while the toluene conversion rate is 2056μmol⋅（g⋅h）-1
Key words： toluene oxidation；photocatalysis；oxygen oxidation；thermal exfoliation；g-CN4
1前言
甲苯选择性氧化是实现其高价值转化的重要途径之一，它的氧化产物（苯甲醇、苯甲醛和苯甲酸等）在医药、染料、香料和食品等领域应用十分广泛[1]。（剩余17970字）
