A platinum (II)-doped graphitic carbon nitride (Pt²⁺@g-C₃N₄) nanozyme was prepared in this work. Compared to g-C₃N₄, Pt²⁺@g-C₃N₄ shows enhanced peroxidase-like activity. According to DFT calculations and ESR measurements, the Pt on the surface of g-C₃N₄ accelerates the decomposition of H₂O₂ into OH and consequently accelerates TMB oxidation. Furthermore, as a proof of concept, the obtained Pt²⁺_2.30@g-C₃N₄ was applied in the detection of glucose with an LOD of 0.01 mM. The reproducibility and precision tests of the glucose detection method based on Pt²⁺_2.30@g-C₃N₄ show that this method is reliable and feasible for the detection of glucose.

在这项工作中，制备了掺杂铂（II）的石墨氮化碳（Pt ²⁺ @gC ₃ N ₄）纳米酶。与gC ₃ N ₄相比，Pt ²⁺ @gC ₃ N ₄显示出增强的过氧化物酶样活性。根据DFT计算和ESR测量，gC ₃ N ₄表面的Pt加速了H ₂ O ₂分解为OH，因此加速了TMB氧化。此外，作为概念证明，得到的Pt ²⁺ _2.30 @gC ₃ N ₄将其用于检测LOD为0.01 mM的葡萄糖。基于Pt ²⁺ _2.30 @gC ₃ N ₄的葡萄糖检测方法的重现性和精密度试验表明，该方法对葡萄糖的检测是可靠可行的。