Herein, ZIF-8 was synthesized at room temperature and nanoporous carbon particle (NCP) components were produced through direct carbonization of ZIF-8 under a nitrogen atmosphere. In order to study the morphological and structural features of as-prepared NCP, scanning electron microscopy (SEM), nitrogen sorption measurements, and X-ray photoelectron spectroscopy (XPS) were carried out. The NCP had a large surface area (1135.79 m²∙g⁻¹) and narrow pore-size distribution (3–5 nm). Modified glassy carbon electrodes with Nafion-containing nanoporous NCP components were applied to fabricate a sensor for electrochemical detection of p-Nitrophenol and p-Nitrobenzoic acid by linear sweep voltammetry. The reductive peak currents of these analytes were observed at −0.325 and −0.187 V. These peaks linearly increased when p-Nitrophenol and p-Nitrobenzoic acid concentrations were in the 0.05–80 μM and 0.03–50 μM ranges. The corresponding detection limits were 17 and 10 nM, respectively. It was speculated that the wide linear range and low detection limits were attributed to the large surface area and porosity as well as rich in nitrogen of the NCP. The sensor was used for the simultaneous analysis of p-Nitrophenol and p-Nitrobenzoic acid in real samples.

在此，ZIF-8 在室温下合成，并通过 ZIF-8 在氮气氛下直接碳化制备纳米多孔碳颗粒 (NCP) 组分。为了研究所制备的 NCP 的形态和结构特征，进行了扫描电子显微镜 (SEM)、氮吸附测量和 X 射线光电子能谱 (XPS)。NCP 具有较大的表面积 (1135.79 m ² ∙g ^-1 ) 和狭窄的孔径分布 (3-5 nm)。应用含有 Nafion 纳米多孔 NCP 组分的改性玻碳电极来制造电化学检测对硝基苯酚和p的传感器-通过线性扫描伏安法测定硝基苯甲酸。在 -0.325 和 -0.187 V 处观察到这些分析物的还原峰电流。当对硝基苯酚和对硝基苯甲酸的浓度在 0.05-80 μM 和 0.03-50 μM 范围内时，这些峰线性增加。相应的检测限分别为 17 和 10 nM。据推测，宽线性范围和低检测限归因于 NCP 的大表面积和孔隙率以及富含氮。该传感器用于同时分析实际样品中的对硝基苯酚和对硝基苯甲酸。