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Amperometric determination of ecotoxic N-methyl-p-aminophenol sulfate in photographic solution and river water samples based on graphene oxide/CeNbO nanocomposite catalyst. | LitMetric

AI Article Synopsis

  • The study presents a new method for creating graphene oxide-embedded cerium niobate (GO/CeNbO) nanoparticles for detecting the photographic developing agent, metol (MTL).
  • The GO/CeNbO composite demonstrated exceptional electrocatalytic activity, achieving a very low detection limit of 10 nM and high sensitivity in electrochemical measurements.
  • The findings show that the GO/CeNbO modified glassy carbon electrode is stable and reliable for real-world applications, evidenced by successful testing in photographic solutions and river water samples.

Article Abstract

The electronic conductivity of the metal oxides is generally increased by hybridization of highly conductive carbon supportive materials. In this present work, we have demonstrated a novel one-pot preparation of cerium niobate (CeNbO) nanoparticles embedded with graphene oxide (GO/CeNbO) composite, for ultrasensitive detection of the photographic developing agent, metol (MTL). The as-prepared GO/CeNbO was analyzed by various characterization techniques. The intensive characterization techniques were used to affirm the detailed structural moiety, size, morphology, and surface area of GO/CeNbO The GO/CeNbO modified glassy carbon electrode (GCE) affords a superior electrocatalytic activity toward MTL. The obtained amperometric response on the GO/CeNbO/GCE holding an extremely low level detection of 10 nM and superior sensitivity of 10.97 µA µM cm toward MTL detection. Besides, the GO/CeNbO/GCE also gives excellent selectivity, stability, repeatability, and reproducibility. We achieved excellent recovery results in real photographic solution and river water samples analysis with great accuracy. This work offers a novel insight into the growth of the carbon-based niobate family with electrochemical sensor applications.

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Source
http://dx.doi.org/10.1016/j.ecoenv.2021.112373DOI Listing

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