Copper tungstate nanoparticles for the selective electrochemical detection of organophosphate pesticide

IF 5.1 2区环境科学与生态学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Environmental Science: Nano Pub Date : 2025-07-24 DOI:10.1039/d5en00538h

Umesh Narasimha Murthy, Sriram Balasubramanian, Alongkorn Pimpin, Nattapol Damrongplasit, Sea-Fue Wang, Werayut Srituravanich

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引用次数: 0

Abstract

Organophosphorus pesticides are now widely used, and their consequences on public health are significant. In this work, unique copper tungstate nanoparticles (CuWO4 NPs) were successfully constructed and utilized to generate a modified electrode for selective and sensitive ethyl parathion determination. The as-prepared CuWO4 NPs were effectively analyzed using XRD, FTIR, and TEM, which confirmed their compositional and morphological advantages. The newly developed CuWO4 NPs possess a unique property that enhances electrocatalytic activity via rapid mass transport, several active sites, and increased conductivity. The modified electrode performed well as an electrochemical sensor for detecting ethyl parathion. It had a wide linear range (0.001–790.4 μM), low detection limit (0.0015 µM, S/N = 3), and strong anti-interference abilities. Owing to the rapid electron transport and specific ion adsorption, the developed sensor was also extremely stable and reproducible. This research suggests a viable technique for developing an enhanced ethyl parathion sensor with potential uses in detecting EP in real-world samples.

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钨酸铜纳米颗粒选择性电化学检测有机磷农药

有机磷农药目前被广泛使用，其对公众健康的影响是重大的。在这项工作中，成功构建了独特的钨酸铜纳米颗粒（CuWO4 NPs），并利用它来制备一种选择性和敏感的乙基对硫磷测定的修饰电极。利用XRD、FTIR和TEM对制备的CuWO4 NPs进行了有效的分析，证实了其在成分和形态上的优势。新开发的CuWO4 NPs具有独特的性质，通过快速的质量传输，多个活性位点和增加的导电性来提高电催化活性。改性电极作为电化学传感器检测乙基对硫磷性能良好。线性范围宽（0.001 ~ 790.4 μM），检出限低（0.0015µM, S/N = 3），抗干扰能力强。由于该传感器具有快速的电子传递和特异性离子吸附，因此具有极高的稳定性和可重复性。本研究提出了一种可行的技术，用于开发一种增强的乙基对硫磷传感器，该传感器具有在实际样品中检测EP的潜在用途。

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来源期刊

Environmental Science: Nano CHEMISTRY, MULTIDISCIPLINARY-ENVIRONMENTAL SCIENCES

CiteScore

12.20

自引率

5.50%

发文量

290

审稿时长

2.1 months

期刊介绍： Environmental Science: Nano serves as a comprehensive and high-impact peer-reviewed source of information on the design and demonstration of engineered nanomaterials for environment-based applications. It also covers the interactions between engineered, natural, and incidental nanomaterials with biological and environmental systems. This scope includes, but is not limited to, the following topic areas: Novel nanomaterial-based applications for water, air, soil, food, and energy sustainability Nanomaterial interactions with biological systems and nanotoxicology Environmental fate, reactivity, and transformations of nanoscale materials Nanoscale processes in the environment Sustainable nanotechnology including rational nanomaterial design, life cycle assessment, risk/benefit analysis