电化学气体传感器
纳米复合材料
材料科学
分子印迹聚合物
检出限
循环伏安法
电化学
选择性
碳纳米管
纳米颗粒
化学工程
电极
核化学
纳米技术
色谱法
化学
有机化学
催化作用
物理化学
工程类
作者
Fatma Hazan Gül,Hacı Ahmet Deveci,Ayla Deveci,Onur Akyıldırım,Mehmet Lütfi Yola
出处
期刊:Mikrochimica Acta
[Springer Science+Business Media]
日期:2025-02-01
卷期号:192 (2): 124-124
被引量:36
标识
DOI:10.1007/s00604-025-06982-9
摘要
Abstract A hydrazine (HYD) detection method is presented based on molecularly imprinting polymers (MIPs) and cobalt-barium stannate nanoparticles incorporated-functionalized MWCNTs (CBSNPs/f-MWCNTs) nanocomposite. Firstly, co-precipitation and sonication techniques were applied to the preparations of CBSNPs and CBSNPs/f-MWCNTs nanocomposite, respectively. Since waste generation occurs at a minimum level in these techniques, an environmentally friendly nanocomposite was prepared. After the glassy carbon electrode modification with CBSNPs and CBSNPs/f-MWCNTs nanocomposite, HYD imprinted electrodes were fabricated using cyclic voltammetry (CV) with a dispersion containing 100.0 mM pyrrole (Py) monomer and 25.0 mM HYD molecule. The resulting electrochemical sensor demonstrated a detection span of 1.0 × 10 −9 M to 1.0 × 10 −8 M HYD and achieved a detection limit (LOD) of 3.0 × 10 −10 M. Furthermore, the developed electrochemical sensor was used for actual tap water samples, and the obtained values close to 100.00% in recovery experiments showed the high accuracy of the developed sensor in real sample analysis. Finally, the selectivity, stability, and reproducibility of the created electrochemical sensor were investigated, and the developed sensor has been demonstrated to have high stability for at least 7 weeks, high reproducibility with a relative standard deviation (RSD) value of 0.14%, and high selectivity in real samples. Graphical Abstract
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