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Updated: Feb 13, 2026

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用素功能化的Ag-Cu-ferrite纳米复合材料作为用于检测 Askorbic 酸的高性能电化学传感器:实验和理论探索
Hana Boucheta1,2, Emna Zouaoui2,3, Mina Boulkroune4,5
1Laboratory of Physico-Chemistry Research on Surfaces and Interfaces (LRPCSI), University of 20 August 1955 Skikda 21000 Algeria.
RSC advances
|February 12, 2026
概括
一个新的基托桑功能化的白银-铜-铁素纳米粒子传感器有效地检测酸 (维生素C). 这种电化学系统在实际应用中表现出高灵敏度,选择性和可靠性.
科学领域:
- 电化学 电化学 电化学
- 纳米材料科学 科学 纳米材料科学
- 分析化学 分析化学
背景情况:
- 亚酸 (维生素C) 是一种重要的营养素,具有众多的健康益处.
- 准确和灵敏地检测酸对于营养监测和临床诊断至关重要.
- 现有的检测方法可能缺乏效率,选择性或实际应用的实用性.
研究的目的:
- 开发一种新型的电化学传感器,用于敏感和选择性检测 Askorbic 酸.
- 用素使银-铜-铁素纳米颗粒功能化,以提高传感器性能.
- 描述纳米复合材料,并评估其电化学特性,用于测量酸.
主要方法:
- 基托桑功能化的Ag-Cu-ferrite纳米粒子 (Ag0.02Cu0.98Fe2O4@chitosan) 的合成和表征.
- 用纳米复合材料修改的碳糊电极 (CPE) 的制造.
- 电化学测量使用循环电压计 (CV) 和时频计.
- 分析电化学反应,灵敏度,选择性,可重复性和可重复性的分析.
- 计算研究包括DFT,MESP,福井函数分析和蒙特卡洛模拟.
主要成果:
- 与裸体CPE相比,Ag0.02Cu0.98Fe2O4@chitosan-CPE表现出优越的电催化活性,用于检测甲酸.
- 传感器在两个度范围 (100-300 μM和300 μM-13 mM) 上表现出线性反应与扩散控制的动力学.
- 实现了高灵敏度 (411.59 μA mM-1 cm2),低检测极限 (89 μM),优秀的选择性,可重现性 (RSD = 1.96%),和可重复性 (RSD = 1.15%).
- 传感器在真实样本中显示了高回收率 (高达98%).
- 计算研究验证了材料的反应性和酸对传感器表面的强烈亲和力.
结论:
- 开发的Ag0.02Cu0.98Fe2O4@chitosan纳米复合体传感器提供了一个高效可靠的平台,用于检测 Askorbic 酸.
- 酸盐功能化显著提高了传感器的电催化性能和稳定性.
- 传感器的优良分析性能和通过计算方法的验证使其适用于维生素C分析的实际应用.
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