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<p>Nitrate ion contamination of water is a serious issue that exists around the world. Nitrates provide a threat due to their transformation into nitrites, particularly nitrosamines, which are thought to be a potential risk for cancer. This is a greater concern than the comparatively low toxicity of nitrates. It is evident that continuous nitrate ion monitoring is highly technologically interesting, but it must be quick and simple to carry out. One of the commonly used methods to meet the aforementioned parameters is electrochemical detection. In particular, in this work we have developed a Polyvinyl alcohol/Copper and Nickel co-doped titania (PCNT)-based nanostructured sensor. The surface morphology and particle size are also studied using various characterizations like X-Ray diffraction analysis (XRD), Fourier-transform infrared spectroscopy (FTIR), High-resolution transmission electron microscopy (HR-TEM), etc. The electrochemical characterizations such as cyclic voltammetry (CV) and differential pulse voltammetry (DPV) are performed. The limit of detection for the fabricated electrode is 204.71&#xa0;µM, while the limit of quantification is 620.34&#xa0;µM. Real water samples were also analysed using fabricated electrode.</p>

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Electrochemical detection of nitrate ions using polyvinyl alcohol/copper and nickel co-doped titania (PCNT) nanocomposite

  • 期刊论文

  • 发表日期：

    2025年2月4日

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  • Ankush Mahajan,
  • Aman Dubey,
  • Anoop Singh,
  • Rakesh Singh,
  • Dena N. Qasim Agha,
  • Rajesh Bhardwaj,
  • Rajneesh Kumar Mishra,
  • Monika Gupta,
  • Sandeep Arya

摘要

Nitrate ion contamination of water is a serious issue that exists around the world. Nitrates provide a threat due to their transformation into nitrites, particularly nitrosamines, which are thought to be a potential risk for cancer. This is a greater concern than the comparatively low toxicity of nitrates. It is evident that continuous nitrate ion monitoring is highly technologically interesting, but it must be quick and simple to carry out. One of the commonly used methods to meet the aforementioned parameters is electrochemical detection. In particular, in this work we have developed a Polyvinyl alcohol/Copper and Nickel co-doped titania (PCNT)-based nanostructured sensor. The surface morphology and particle size are also studied using various characterizations like X-Ray diffraction analysis (XRD), Fourier-transform infrared spectroscopy (FTIR), High-resolution transmission electron microscopy (HR-TEM), etc. The electrochemical characterizations such as cyclic voltammetry (CV) and differential pulse voltammetry (DPV) are performed. The limit of detection for the fabricated electrode is 204.71 µM, while the limit of quantification is 620.34 µM. Real water samples were also analysed using fabricated electrode.