Department of Chemistry, Fujian Normal University, Fuzhou 350007, P. R. China.
Research Center of Analysis and Measurement, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
J Nanosci Nanotechnol. 2019 Jul 1;19(7):4020-4025. doi: 10.1166/jnn.2019.16297.
In this work, platinum nanoparticles were modified on graphite-like carbon nitride (g-C₃N₄) surface via a simple one-pot deposition reduction method, and the prepared Pt/g-C₃N₄ was used as electrode materials for phenol sensing. The morphology and crystallographic structure of Pt/g-C₃N₄ were characterized by Scanning transmission electron microscope (STEM) and X-ray diffraction (XRD). The electrochemical performance of Pt/g-C₃N₄ toward phenol was investigated in details and the results showed that the Pt/g-C₃N₄ sensor had favorable sensing ability for phenol detection. Under the optimum parameters, the electrochemical sensor had a wide range of 2 to 20 M, lower detection limits of 0.667 M (═3), and higher sensitivity of 1.21084 mA M in phenol detection, indicating the excellent capability of the newly developed sensor to determine phenol. Moreover, the design of the Pt/g-C₃N₄ sensor may provide a potential material for actual application in phenol detection due to its merits of simplicity, reliability, sensitivity and low-cost.
在这项工作中，通过简单的一锅沉积还原法，在石墨相氮化碳（g-C₃N₄）表面修饰了铂纳米粒子，所制备的 Pt/g-C₃N₄ 用作苯酚传感的电极材料。通过扫描透射电子显微镜（STEM）和 X 射线衍射（XRD）对 Pt/g-C₃N₄ 的形貌和晶体结构进行了表征。详细研究了 Pt/g-C₃N₄ 对苯酚的电化学性能，结果表明，Pt/g-C₃N₄ 传感器对苯酚检测具有良好的传感能力。在最佳参数下，电化学传感器对苯酚的检测范围为 2 至 20 M，检测限为 0.667 M（═3），灵敏度为 1.21084 mA M，表明新开发的传感器具有优异的苯酚检测能力。此外，Pt/g-C₃N₄ 传感器的设计由于其简单、可靠、灵敏和低成本的优点，可为实际应用中苯酚的检测提供一种潜在的材料。
