Institute of the Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Jiangsu, Zhenjiang 212013, China.
Institute of Environmental Health and Ecological Security, School of the Environment and Safety Engineering, Jiangsu University, Jiangsu, Zhenjiang 212013, China.
Chem Commun (Camb). 2022 Sep 8;58(72):10036-10039. doi: 10.1039/d2cc03373a.
Here, a novel transformed CdO with low coordination and N doping environment was simply synthesized through the involvement of the target molecule tetracycline (TC). The results showed that the shedding of surface hydroxyl groups led to a low coordination environment, and N doping formed a new doping energy level, which increased the charge density and promoted the migration and separation of photo-generated carriers. Its photocatalytic performance was 4.32 times higher than that of hydroxy-rich CdO and the selectivity coefficient was 4.8. Combined with theoretical calculation and Attenuated Total Reflectance Fourier Transform Infrared (ATR-FTIR) analysis, the significant improvement of selectivity was due to the interaction of the doped N atom with the methyl carbon in TC. This work provided a new idea for the simultaneous construction of low coordination environment and N-doped materials for efficient selective photocatalysis.
在这里，通过引入目标分子四环素（TC），我们简单地合成了一种具有低配位和 N 掺杂环境的新型转化 CdO。结果表明，表面羟基的脱落导致低配位环境的形成，而 N 掺杂则形成了新的掺杂能级，这增加了电荷密度并促进了光生载流子的迁移和分离。其光催化性能比富含羟基的 CdO 高 4.32 倍，选择性系数为 4.8。结合理论计算和衰减全反射傅里叶变换红外（ATR-FTIR）分析，选择性的显著提高归因于掺杂 N 原子与 TC 中甲基碳的相互作用。这项工作为高效选择性光催化中同时构建低配位环境和 N 掺杂材料提供了新的思路。
