We report for the first time to our knowledge the identification of heteroatom-doped and undoped C3N4 with the energy-resolved distribution of electron traps (ERDT) near the conduction band bottom position (CBB) using reversed double-beam photoacoustic spectroscopy. The ERDT/CBB pattern is used to classify the type of elemental doping in C3N4, related to photocatalytic efficiency.

中文翻译：

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反向双束光声光谱法分析O / S掺杂碳氮化物的电子陷阱的能量分辨分布和Cr（vi）的光催化还原。

我们首次报告了我们的知识，使用反向双束光声光谱技术鉴定了杂原子掺杂和未掺杂的C3N4，其中电子陷阱（ERDT）的能量分辨分布在导带底位置（CBB）附近。ERDT / CBB模式用于对C3N4中与光催化效率有关的元素掺杂类型进行分类。