材料科学
检出限
纳米复合材料
介电谱
循环伏安法
扫描电子显微镜
电化学
电极
分析化学(期刊)
电化学气体传感器
化学工程
纳米技术
复合材料
化学
色谱法
物理化学
工程类
作者
Haibing Hu,Yunhu Hu,Baozhu Xie,Jianxiong Zhu
出处
期刊:Nanomaterials
[MDPI AG]
日期:2023-08-09
卷期号:13 (16): 2288-2288
摘要
Currently, heavy metal ion pollution in water is becoming more and more common, especially As (III), which is a serious threat to human health. In this experiment, a glassy carbon electrode modified with Fe3O4/MoS2 nanocomposites was used to select the square wave voltammetry (SWV) electrochemical detection method for the detection of trace As (III) in water. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) showed that Fe3O4 nanoparticles were uniformly attached to the surface of MoS2 and were not easily agglomerated. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) showed that Fe3O4/MoS2 has higher sensitivity and conductivity. After optimizing the experimental conditions, the Fe3O4/MoS2-modified glassy carbon electrode exhibited high sensitivity (3.67 μA/ppb) and a low detection limit (0.70 ppb), as well as excellent interference resistance and stability for As (III).
科研通智能强力驱动
Strongly Powered by AbleSci AI