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首页> 外文期刊>RSC Advances >Potential application of mixed metal oxide nanoparticle-embedded glassy carbon electrode as a selective 1,4-dioxane chemical sensor probe by an electrochemical approach
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Potential application of mixed metal oxide nanoparticle-embedded glassy carbon electrode as a selective 1,4-dioxane chemical sensor probe by an electrochemical approach

机译：混合金属氧化物纳米粒子嵌入玻璃电极作为电化学方法选择1,4-二恶烷化学传感器探头的潜在应用

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Here, low-dimensional mixed metal oxide (ZnO/NiO/MnO _(2) ) nanoparticles (NPs) were prepared to develop a selective, efficient and ultra-sensitive 1,4-dioxane sensor by using the wet-chemical method (co-precipitation) in alkaline medium at low temperature. Detailed characterization of the prepared calcined NPs was achieved via conventional methods, including X-ray diffraction, field emission scanning electron microscopy, and X-ray photoelectron, UV-vis, Fourier-transform infrared and energy dispersive X-ray spectroscopies. To develop a thin layer of nanomaterial on the fabricated electrode, a slurry of prepared NPs was used to coat the glassy carbon electrode (GCE) with conductive Nafion (5% in ethanol) binder. The fabricated electrochemical sensor showed good sensitivity (1.0417 μA μM ~(?1) cm ~(?2) ), a wide linear dynamic range (0.12 nM to 1.2 mM), lower detection limit (9.14 ± 4.55 pM), short response time, good reproducibility, and long-term stability to selectively detect 1,4-dioxane in the optimized buffer system. Thus, this work presents a reliable alternative approach over existing methods to selectively detect hazardous chemicals in large scale for safety in the environmental and healthcare fields.
机译：这里，制备低维混合金属氧化物（ZnO / NiO / MnO _（2））纳米颗粒（NPS），通过使用湿化学方法（CO）来制备选择性，有效和超敏感的1,4-二恶烷传感器（CO在低温下碱性培养基施用）。通过常规方法实现制备的煅烧NP的详细表征，包括X射线衍射，场发射扫描电子显微镜和X射线光电子，UV-Vis，傅里叶变换红外和能量分散X射线光谱。为了在制造电极上开发薄层材料层，使用制备的NPS的浆料用导电Nafion（乙醇）粘合剂的导电Nafion（5％）涂覆玻璃状碳电极（GCE）。制造的电化学传感器显示出良好的灵敏度（1.0417μAμm〜（？1）cm〜（Δ2）），宽线性动态范围（0.12nm至1.2 mm），较低的检测限（9.14±4.55 pm），短响应时间短，良好的再现性，以及在优化缓冲系统中选择性地检测1,4-二恶烷的长期稳定性。因此，该工作呈现了在环境和医疗保健领域的大规模中选择性地检测有害化学品的现有方法的可靠替代方法。

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