Hubei Province Fiber Inspection Bureau, Wuhan 430061, China.
Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering, Hubei University, Wuhan 430062, China.
Molecules. 2020 Sep 27;25(19):4432. doi: 10.3390/molecules25194432.
In this work, we report the synthesis of Cu-Ag bimetallic nanopartiles and g-CN nanosheets decorated on zeolitic imidazolate framework-8 (ZIF-8) to form a Cu-Ag/g-CN/ZIF hybrid. The hybrid was synthesized and characterized by Transmission electron microscopy (TEM), Fourier transformed infrared (FTIR), the X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The Cu-Ag/g-CN/ZIF hybrid has intrinsic peroxidaselike catalytic activity towards the oxidation of TMB in the presence of HO. The situ synthesis of Cu-Ag bimetallic nanopartiles on 2D support such as g-CN nanosheets would significantly enhance the peroxidaselike catalytic properties of individual Cu-Ag bimetallic nanopartiles and the g-CN nanosheets. After loading of Cu-Ag bimetallic nanopartiles and g-CN nanosheets on the ZIF-8, the hybrids exhibited superior peroxidaselike catalytic activity and good recyclability. Then, this method was applied for detecting glucose in human serum, owing the significant potential for detection of metabolites with HO-generation reactions.
在这项工作中，我们报告了 Cu-Ag 双金属纳米粒子和 g-CN 纳米片在沸石咪唑酯骨架-8（ZIF-8）上的合成，形成了 Cu-Ag/g-CN/ZIF 杂化材料。通过透射电子显微镜（TEM）、傅里叶变换红外（FTIR）、X 射线衍射（XRD）和 X 射线光电子能谱（XPS）对杂化材料进行了合成和表征。Cu-Ag/g-CN/ZIF 杂化材料在 HO 存在下对 TMB 的氧化具有固有过氧化物酶样催化活性。在 2D 载体如 g-CN 纳米片上原位合成 Cu-Ag 双金属纳米粒子会显著增强单个 Cu-Ag 双金属纳米粒子和 g-CN 纳米片的过氧化物酶样催化性能。在 ZIF-8 上负载 Cu-Ag 双金属纳米粒子和 g-CN 纳米片后，杂化物表现出优异的过氧化物酶样催化活性和良好的可回收性。然后，该方法被用于检测人血清中的葡萄糖，由于具有产生 HO 的代谢物检测的巨大潜力。
