无稳定剂制备结合铜的钛基纳米线,用于灵敏检测 2,4,5-三羟基苯甲酸:在食用油样品中的应用

IF 2.6 4区 化学 Q3 ELECTROCHEMISTRY Journal of Solid State Electrochemistry Pub Date : 2024-08-29 DOI:10.1007/s10008-024-06046-7
Jeovana C. Pacheco, Scarllett L. Lima, Liying Liu, Alan S. de Menezes, Marco A. S. Garcia, Flávio S. Damos, Rita C. S. Luz
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引用次数: 0

摘要

2,4,5-三羟基苯甲酸(THBA)是一种用于食品工业的合成抗氧化剂,由于可能对人体健康造成潜在风险而备受关注;因此,确保符合法律标准至关重要。为此,本研究介绍了一种基于碳印刷电极(SPE)的电化学平台的开发情况,该平台使用钛(Ti)基纳米线(NWs)修饰,用于检测 THBA。然而,钛基纳米线的合成涉及不同数量的铜(Cu),因此与未修饰的对应物相比,其形态变化很小。有趣的是,合成过程中没有使用有机稳定剂,从而制备出了更清洁的纳米结构;这种方法旨在提高电化学传感性能、降低成本并促进环境友好。此外,它还提高了电荷转移效率,使合成工艺成为可持续纳米材料生产的理想选择。XRD 分析表明,金属的添加影响了钛基 NW 的结构。此外,SEM 图像显示,未修饰的 SPE 表面光滑,而 Cu 修饰的钛基 NWs/SPE 则显示出这种材料的致密网络。此外,电化学研究表明,铜的引入增强了电催化性能。在优化条件下,可以在 500 pmol L-1 至 5000 µmol L-1 的宽工作范围内测定 THBA。通过检测大豆油和葵花籽油样品中的 THBA,验证了该传感器的适用性,结果表明其回收率在 96.30% 和 101.87% 之间,表明该传感器具有良好的准确性,可成功应用于食用油样品。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Stabilizer-free preparation of titanium-based nanowires combined with copper for sensitive detection of 2,4,5-trihydroxybenzoic acid: application in edible oil samples

2,4,5-Trihydroxybenzoic acid (THBA) is a synthetic antioxidant used in the food industry that has attracted attention due to the potential risks it may pose to human health; thus, ensuring compliance with legal standards is essential. In this regard, the present study describes the development of an electrochemical platform based on a carbon-printed electrode (SPE) modified with titanium (Ti)-based nanowires (NWs) for THBA detection. However, the synthesis of Ti-based NWs involved varying copper (Cu) quantities, resulting in few morphological changes compared to the unmodified counterpart. Interestingly, the syntheses were carried out without organic stabilizers, resulting in the preparation of cleaner nanostructures; such an approach was planned to enhance the electrochemical sensing performance, reduce costs, and promote environmental friendliness. Moreover, it improves charge transfer efficiency, making the synthesis process ideal for sustainable nanomaterial production. XRD analyses indicate that the addition of the metal affected the structure of the Ti-based NWs. Also, SEM images revealed that the unmodified SPE exhibited a smooth surface, whereas the Cu-modified Ti-based NWs/SPE showed a dense network of such material. In addition, the electrochemical studies have shown an enhancing of the electrocatalytic properties after the introduction of copper. Under optimized conditions, it was found that THBA can be determined over a wide working range from 500 pmol L−1 to 5000 µmol L−1. The applicability of the sensor was verified by detecting THBA in soybean oil and sunflower oil samples, showing excellent recovery values between 96.30 and 101.87%, suggesting that the proposed sensor demonstrates good accuracy and can be successfully applied to edible oil samples.

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来源期刊
CiteScore
4.80
自引率
4.00%
发文量
227
审稿时长
4.1 months
期刊介绍: The Journal of Solid State Electrochemistry is devoted to all aspects of solid-state chemistry and solid-state physics in electrochemistry. The Journal of Solid State Electrochemistry publishes papers on all aspects of electrochemistry of solid compounds, including experimental and theoretical, basic and applied work. It equally publishes papers on the thermodynamics and kinetics of electrochemical reactions if at least one actively participating phase is solid. Also of interest are articles on the transport of ions and electrons in solids whenever these processes are relevant to electrochemical reactions and on the use of solid-state electrochemical reactions in the analysis of solids and their surfaces. The journal covers solid-state electrochemistry and focusses on the following fields: mechanisms of solid-state electrochemical reactions, semiconductor electrochemistry, electrochemical batteries, accumulators and fuel cells, electrochemical mineral leaching, galvanic metal plating, electrochemical potential memory devices, solid-state electrochemical sensors, ion and electron transport in solid materials and polymers, electrocatalysis, photoelectrochemistry, corrosion of solid materials, solid-state electroanalysis, electrochemical machining of materials, electrochromism and electrochromic devices, new electrochemical solid-state synthesis. The Journal of Solid State Electrochemistry makes the professional in research and industry aware of this swift progress and its importance for future developments and success in the above-mentioned fields.
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