An electrochemical sensor based on nitrogen doped carbon material prepared from nitrogen-containing precursors

2nd International Conference on New Material and Chemical Industry

材料科学;化学工业

Cui, G.Y.^1 ; Wang, C.Y.^1 ; Xiang, G.Q.^1 ; Zhou, B.^1

Nanjing Normal University, Nanjing

210023, China^1

关键词: Differential pulse voltammetry;    Electrochemical biosensor;    ELectrochemical methods;    Electrochemical sensing;    Fourier transform infrared;    Minimum detection limits;    Nitrogen-doped carbons;    Sensing performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/292/1/012034/pdf
DOI  :  10.1088/1757-899X/292/1/012034

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In this work, a nitrogen doped carbon material (NDC) was prepared by using a copper adenine complex as precursor and applied to electrochemical sensing of Vitamin B2 (VB2). The experimental results show that the nitrogen doped carbon material is obtained after calcination at 650 °C under argon atmosphere, afterwards, which were characterized by X-ray diffraction (XRD), transmission electron microscope (TEM), fourier transform infrared (FT-IR), and electrochemical method. According to the XRD data, the product was a carbon material, and infrared data demonstrates that there are two kinds of carbonyl nitrogen combination, respectively, C-N and C = N combination of ways. Importantly, we used NDC to construct electrochemical biosensor to detect VB2by differential pulse voltammetry (DPV). The linear range was 6 ×10-6-3.5 ×10-4M (R=0.9962), the minimum detection limit was 5.4 × 10-6M, and the sensitivity is better. Consequently, it has better sensing performance.