Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan, ROC.
Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 106, Taiwan, ROC.
Ultrason Sonochem. 2019 Jan;50:96-104. doi: 10.1016/j.ultsonch.2018.09.006. Epub 2018 Sep 3.
Present strategy introduce the sonochemical synthesis of molybdenum oxide (MoO) microspheres anchored graphitic carbon nitride (g-CN) ultrathin sheets as a novel electrocatalyst for the detection of Furazolidone (FU). TEM results revealed that MoO are microspheres with an average size of 2 µM and the g-CN seems like ultrathin sheets. Owing to their peculiar morphological structure, g-CN/MoO composite modified electrode provided an enriched electroactive surface area (0.3788 cm) and higher heterogeneous electron transfer kinetics (K° = 4.91×10 cm s) than the other controlled electrodes. It is obviously observed from the voltammetric studies that the proposed sensor based on g-CN/MoO composite can significantly improve the electrocatalytic efficiency towards the sensing of FU. Due to the excellent synergic effect of g-CN/MoO composite, can detect the ultra-level FU with a limit of detection of 1.4 nM and a broad dynamic range of 0.01-228 µM, which surpassed the many previously reported FU sensors. Hence, the proposed sensor was successfully applied to sensing the FU in human blood serum, urine and pharmaceutical samples, gained an agreeable recoveries.
目前的策略介绍了一种新型电催化剂，即通过声化学合成氧化钼（MoO）微球锚定石墨相氮化碳（g-CN）超薄片，用于检测呋喃唑酮（FU）。TEM 结果表明，MoO 为微球，平均粒径为 2μm，g-CN 似乎为超薄片。由于其独特的形态结构，g-CN/MoO 复合材料修饰电极提供了丰富的电活性表面积（0.3788 cm）和更高的非均相电子转移动力学（K°=4.91×10 cm s），优于其他控制电极。从伏安研究中明显可以看出，基于 g-CN/MoO 复合材料的传感器可以显著提高对 FU 传感的电催化效率。由于 g-CN/MoO 复合材料的协同效应优异，该传感器可以检测到超低水平的 FU，检测限为 1.4 nM，动态范围为 0.01-228 µM，超过了许多先前报道的 FU 传感器。因此，该传感器成功地应用于检测人血清、尿液和药物样品中的 FU，获得了令人满意的回收率。
