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- W3196109968 abstract "Recently, electrochemical sensors have been applied for the detection of heavy metal ions. The modifier on the electrochemical electrode is the key factor for enhanced performance. Modification by combining metal oxide nanomaterials with good adsorption property and graphene oxide (GO) with good conductivity can construct a useful sensing interface to detect heavy metal ions. Here, the effects of structures and morphologies of Co3O4/GO composite modifiers on the electrochemical detection performance were studied. The results show that Co3O4/GO composite with holey nano-sheets of pure Co3O4 on lamella GO substrate had the best electrochemical performance for their large active sites and enhanced ion and charge transports. The limits of detection of the electrochemical sensors based on developed Co3O4/GO composite to Cd2+ and Pb2+ were calculated as 57 and 29.4 nM, respectively, which are lower than the guideline values recommended by the World Health Organization for drinking water. Furthermore, the designed sensor also showed excellent stability, selectivity, and acceptable reproducibility and reliablity. The results indicate that Co3O4/GO composite with holey layer structures as a promising electrode modifier could be potentially applied in the electrochemical detection of heavy metal ions on-site." @default.
- W3196109968 created "2021-08-30" @default.
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- W3196109968 date "2021-08-01" @default.
- W3196109968 modified "2023-09-26" @default.
- W3196109968 title "Self-Assembled Co<sub>3</sub>O<sub>4</sub>/GO Composites for Excellent Electrochemical Detection of Heavy-Metal Ions" @default.
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- W3196109968 doi "https://doi.org/10.1149/1945-7111/ac1eb5" @default.
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