Graduate Institute of Energy and Optoelectronic Materials, National Taipei University of Technology, Taipei, Taiwan; Department of Molecular Science and Engineering, National Taipei University of Technology, Taipei, Taiwan.
Graduate Institute of Energy and Optoelectronic Materials, National Taipei University of Technology, Taipei, Taiwan; Department of Molecular Science and Engineering, National Taipei University of Technology, Taipei, Taiwan; Center for Biomedical Industry, National Taipei University of Technology, Taipei, Taiwan.
Chemosphere. 2022 Nov;307(Pt 2):135715. doi: 10.1016/j.chemosphere.2022.135715. Epub 2022 Jul 14.
The modern development in the agricultural production has huge influential factors being highly beneficial and also includes some health hazards. Under the class of chlorophenols, 2,4,6-trichlorophenol is a widely used chemical which remains as a major pollutant in the environment. The detection of 2,4,6-trichlorophenol was initiated as a controlling measure to decrease the seriousness prevailing in the ecosystem. The electrochemical and UV-vis absorption sensing platform are simple and low-cost detection techniques with precise and sensitive analysis. Cadmium tin oxide integrated with the reduced graphene oxide was employed as a nanohybrid for the construction of the working electrode. The structural and morphological analysis confirmed the high degree of crystallinity of the nanocomposite with nanorod formation. The high surface area, with high charge carrier mobility, and increased electrical conductivity of the material boosted the 2,4,6-trichlorophenol detection. The active surface area was calculated to be 0.068 cm, 0.089 cm, 0.118 cm and 0.146 cm for all the modified electrodes. The resistance of the electrodes was about 91.4 Ω, 72.9 Ω, 48.8 Ω and 41.6 Ω. The linear range of 2,4,6-trichlorophenol was 0.019 μM-0.299 μM and 1.299 μM-1678.97 μM in electrochemical sensing and 10.99 μM-24.84 μM in UV detection. The obtained limit of detection with the formulation 3σ/SD was about 3.05 nM and 80 nM with sensitivity about 14.01 μA μM cm. The real sample detection in environmental real samples showed good recovery results. The specific selectivity, good repeatability, reproducibility and stability analysis proves the good sensing parameters. Thus, the fabricated electrode is highly sufficient of sensing 2,4,6-trichlorophenol. These excellent features of the material can be applied for several other applications which will provide good performances.
现代农业生产的发展具有巨大的影响因素，既有巨大的益处，也存在一些健康危害。在氯苯酚类中，2,4,6-三氯苯酚是一种广泛使用的化学物质，仍然是环境中的主要污染物。检测 2,4,6-三氯苯酚是作为减少生态系统中普遍存在的严重性的控制措施而开始的。电化学和紫外可见吸收传感平台是简单且低成本的检测技术，具有精确和灵敏的分析。将氧化镉锡与还原氧化石墨烯集成在一起作为纳米复合材料用于构建工作电极。结构和形态分析证实了纳米复合材料具有高度的结晶度和纳米棒形成。该材料具有高比表面积、高电荷载流子迁移率和增加的电导率，从而提高了 2,4,6-三氯苯酚的检测。所有修饰电极的有效表面积分别计算为 0.068 cm、0.089 cm、0.118 cm 和 0.146 cm。电极的电阻约为 91.4 Ω、72.9 Ω、48.8 Ω 和 41.6 Ω。电化学传感的 2,4,6-三氯苯酚线性范围为 0.019 μM-0.299 μM 和 1.299 μM-1678.97 μM，在 UV 检测中为 10.99 μM-24.84 μM。用公式 3σ/SD 得到的检出限约为 3.05 nM 和 80 nM，灵敏度约为 14.01 μA μM cm。在环境实际样品中的实际样品检测显示出良好的回收率。特异性、良好的重复性、重现性和稳定性分析证明了良好的传感参数。因此，所制备的电极非常适合检测 2,4,6-三氯苯酚。该材料的这些优异特性可应用于其他一些应用，将提供良好的性能。
