Engineering College, Northern Border University, Arar 91431, Saudi Arabia.
Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, Najran 11001, Saudi Arabia.
Biosensors (Basel). 2023 Jan 23;13(2):178. doi: 10.3390/bios13020178.
Exposure to hydroquinone (HQ) can cause various health hazards and negative impacts on the environment. Therefore, we developed an efficient electrochemical sensor to detect and quantify HQ based on palladium nanoparticles deposited in a porous silicon-polypyrrole-carbon black nanocomposite (Pd@PSi-PPy-C)-fabricated glassy carbon electrode. The structural and morphological characteristics of the newly fabricated Pd@PSi-PPy-C nanocomposite were investigated utilizing FESEM, TEM, EDS, XPS, XRD, and FTIR spectroscopy. The exceptionally higher sensitivity of 3.0156 μAμM cm and a low limit of detection (LOD) of 0.074 μM were achieved for this innovative electrochemical HQ sensor. Applying this novel modified electrode, we could detect wide-ranging HQ (1-450 μM) in neutral pH media. This newly fabricated HQ sensor showed satisfactory outcomes during the real sample investigations. During the analytical investigation, the Pd@PSi-PPy-C/GCE sensor demonstrated excellent reproducibility, repeatability, and stability. Hence, this work can be an effective method in developing a sensitive electrochemical sensor to detect harmful phenol derivatives for the green environment.
接触对苯二酚（HQ）会对健康造成各种危害，并对环境产生负面影响。因此，我们开发了一种基于钯纳米粒子沉积在多孔硅-聚吡咯-炭黑纳米复合材料（Pd@PSi-PPy-C）修饰玻碳电极的高效电化学传感器，用于检测和定量 HQ。利用 FESEM、TEM、EDS、XPS、XRD 和 FTIR 光谱对新制备的 Pd@PSi-PPy-C 纳米复合材料的结构和形态特征进行了研究。该创新型电化学 HQ 传感器具有异常高的灵敏度（3.0156 μAμM cm）和低检测限（LOD）（0.074 μM）。使用这种新型修饰电极，我们可以在中性 pH 介质中检测广泛范围的 HQ（1-450 μM）。该新型 HQ 传感器在实际样品研究中表现出了令人满意的结果。在分析研究中，Pd@PSi-PPy-C/GCE 传感器表现出了出色的重现性、重复性和稳定性。因此，这项工作可以为开发用于检测绿色环境中有害酚类衍生物的灵敏电化学传感器提供一种有效的方法。
