Preparation and Characterization of Bhant Leaves‐Derived Nitrogen‐Doped Carbon and Its use as an Electrocatalyst for Detecting Ketoconazole,Electroanalysis

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Preparation and Characterization of Bhant Leaves‐Derived Nitrogen‐Doped Carbon and Its use as an Electrocatalyst for Detecting Ketoconazole
Electroanalysis ( IF 2.7 ) Pub Date : 2019-11-12 , DOI: 10.1002/elan.201900474
Md. Aminul Haque ₁ , Md. Rajibul Akanda ₁ , Delwar Hossain ₁ , M. Aminul Haque ₁ , Ismail A. Buliyaminu _{2,

3} , Shaik Inayath Basha _{2,

4} , Munetaka Oyama ₅ , Md. Abdul Aziz ₂

Affiliation

In this study, the electrocatalytic characteristics of nitrogen‐doped carbon (NDC) prepared from Clerodendrum Infortunatum L leaves on a glassy carbon electrode (GCE) surface was evaluated with regards to its ability to detect the electroactive drug ketoconazole (KCZ). The NDC was prepared by carrying out a simple pyrolysis of dry powder of the leaves at 850 °C. The prepared NDC was characterized using field‐emission scanning electron microscopy, energy dispersive spectroscopy, transmission electron microscopy, X‐ray photoelectron spectroscopy and Brunauer‐Emmett‐Teller analysis, and was then used as an electrode material. The performance of the electrochemical KCZ sensor with the NDC‐modified glassy carbon electrode (NDC/GCE) was found to be optimal when using PBS buffer at pH 3 and a concentration of 0.1 mg/ml of NDC in the conjugate with Nafion polymer. Under these conditions, the NDC/GCE displayed a KCZ detection limit of 3 μM and a linear dependence of its response on KCZ concentration over a wide range of KCZ concentrations from 47 μM to 752 μM (R²=0.9742). These results confirmed the potential of NDC as an electrocatalyst.

中文翻译：

班特叶衍生氮掺杂碳的制备，表征及其作为检测酮康唑的电催化剂

在这项研究中，从鸡油菌制备的氮掺杂碳（NDC）的电催化特性评估了L在玻璃碳电极（GCE）表面上的叶子对电活性药物酮康唑（KCZ）的检测能力。通过在850°C下简单干燥叶子的干粉来制备NDC。使用场发射扫描电子显微镜，能量色散光谱，透射电子显微镜，X射线光电子光谱和Brunauer-Emmett-Teller分析对制得的NDC进行表征，然后将其用作电极材料。当使用pH 3的PBS缓冲液和在与Nafion聚合物共轭的NDC浓度为0.1 mg / ml的PBS缓冲液时，具有NDC修饰的玻碳电极（NDC / GCE）的电化学KCZ传感器的性能最佳。在这种情况下² = 0.9742）。这些结果证实了NDC作为电催化剂的潜力。

更新日期：2019-11-13

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