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负载铂纳米颗粒的生物质多孔碳纳米复合修饰电极用于木犀草素的电催化传感及应用

Platinum nanoparticles decorating a biomass porous carbon nanocomposite-modified electrode for the electrocatalytic sensing of luteolin and application.

作者信息

Liu Juan, Cheng Hui, Xie Hui, Luo Guiling, Niu Yanyan, Zhang Shuyao, Li Guangjiu, Sun Wei

机构信息

Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science of Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 PR China

Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, College of Chemistry and Chemical Engineering, Hainan Normal University Haikou 571158 PR China.

出版信息

RSC Adv. 2019 Oct 18;9(58):33607-33616. doi: 10.1039/c9ra06265c.

DOI:10.1039/c9ra06265c
PMID:35528916
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9073529/
Abstract

A sensitive electrochemical method was proposed for the determination of luteolin based on platinum (Pt) nanoparticles decorating a biomass porous carbon (BPC) composite-modified carbon ionic liquid electrode (CILE). For Pt-BPC/CILE, a pair of well-defined redox peaks of luteolin appeared with enhanced peak currents and the positive movement of peak potentials, proving the electrocatalytic activity of the Pt-BPC nanocomposite for redox reaction. The results can be ascribed to the porous structure of BPC, the catalytic activity of Pt nanoparticles and their synergistic effects. Electrochemical parameters were calculated cyclic voltammetry and differential pulse voltammetry. The results showed that the oxidation peak currents increased linearly with the concentration of luteolin in the range from 0.008 to 100.0 μmol L, with a detection limit of 2.6 ± 0.054 nmol L. The analytical performance of this sensor was checked by the detection of luteolin contents in a real Duyiwei capsule sample with satisfactory results.

摘要

提出了一种基于铂（Pt）纳米粒子修饰生物质多孔碳（BPC）复合改性碳离子液体电极（CILE）测定木犀草素的灵敏电化学方法。对于Pt-BPC/CILE，木犀草素出现了一对明确的氧化还原峰，峰电流增强且峰电位正移，证明了Pt-BPC纳米复合材料对氧化还原反应的电催化活性。结果可归因于BPC的多孔结构、Pt纳米粒子的催化活性及其协同效应。通过循环伏安法和差分脉冲伏安法计算电化学参数。结果表明，在0.008至100.0 μmol L范围内，氧化峰电流与木犀草素浓度呈线性关系，检测限为2.6±0.054 nmol L。通过检测实际独一味胶囊样品中的木犀草素含量对该传感器的分析性能进行了检验，结果令人满意。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ce2/9073529/42272ce8a20b/c9ra06265c-f6.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ce2/9073529/42272ce8a20b/c9ra06265c-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ce2/9073529/1a0d096f64c0/c9ra06265c-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9ce2/9073529/bc38c3984893/c9ra06265c-f1.jpg
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