掺银还原石墨烯氧化物纳米复合材料的生态友好合成、表征及电化学活性评估

IF 4.9 2区化学 Q1 CHEMISTRY, ANALYTICAL

Microchemical Journal Pub Date : 2024-09-11 DOI:10.1016/j.microc.2024.111587

Oskay Kahraman, Ersan Turunc, Riza Binzet

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引用次数: 0

摘要

本研究利用一种重要的全寄生植物莹草（Pers.）进行还原型氧化石墨烯银纳米复合材料（rGO-AgNCs）的绿色合成。利用紫外可见光谱、傅立叶变换红外光谱（FT-IR）、X射线衍射仪（XRD）、扫描电子显微镜（SEM）、透射电子显微镜（TEM）和X射线光电子能谱（XPS）对得到的rGO-AgNCs进行了表征。利用合成的 rGO-AgNCs 结构修饰碳浆电极（rGO-AgNCs@CPE），对甲硝唑（MNZ）进行电化学测定。结果表明，所获得的 rGO-AgNCs@CPE 在测定 MNZ 方面比未修饰的 CPE 表现出更高的灵敏度，DPV 测量显示，在 5-300 μM 的线性浓度范围内，检测限低至 0.039 μM。对拟议传感器的实际样品分析表明，它在人体尿液的 MNZ 分析中反应良好。

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Eco-friendly Synthesis of Silver-Doped Reduced Graphene Oxide Nanocomposite, The Characterization, and Evaluation of Electrochemical Activity

In this study, Pers., which is an important holoparasite plant, was used for green synthesis of reduced graphene oxide silver nanocomposites (rGO-AgNCs). The obtained rGO-AgNCs were characterizated using UV–Vis spectroscopy, Fourier transformation infrared spectroscopy (FT-IR), X-Ray diffractiometer (XRD), Scanning electron microscope (SEM), Transmission electron microscope (TEM), and X-Ray photoelectron spectroscopy (XPS). The synthesized rGO-AgNCs structure were used to modify carbon paste electrode (rGO-AgNCs@CPE) for electrochemical determination of metronidazole (MNZ). It was observed that the obtained rGO-AgNCs@CPE showed higher sensitivity in MNZ determination than the unmodified CPE, and DPV measurements showed a low detection limit of 0.039 μM over a linear concentration range of 5–300 μM. Real sample analysis of the proposed sensor shows that it responds well in MNZ analysis of human urine.

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来源期刊

Microchemical Journal 化学-分析化学

CiteScore

8.70

自引率

8.30%

发文量

1131

审稿时长

1.9 months

期刊介绍： The Microchemical Journal is a peer reviewed journal devoted to all aspects and phases of analytical chemistry and chemical analysis. The Microchemical Journal publishes articles which are at the forefront of modern analytical chemistry and cover innovations in the techniques to the finest possible limits. This includes fundamental aspects, instrumentation, new developments, innovative and novel methods and applications including environmental and clinical field. Traditional classical analytical methods such as spectrophotometry and titrimetry as well as established instrumentation methods such as flame and graphite furnace atomic absorption spectrometry, gas chromatography, and modified glassy or carbon electrode electrochemical methods will be considered, provided they show significant improvements and novelty compared to the established methods.