Efficient Visual Chemosensor for Hexavalent Chromium via a Controlled Strategy for Signal Amplification in Water

References

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343Efficient Visual Chemosensor for Hexavalent Chromium via a Controlled Strategy for Signal Amplification in Waterhttps://doi.org/10.1021/acs.analchem.9b05532CompositerGO/PEI/Au nanohybrids

Materials

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BET
b nanozyme
b 10n
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sa 10n
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Kinetics

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Applications

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343rGO/PEI/Au nanohybridsaddition of a trace amount of Cr6+, rGO/PEI/Au nanohybrids can effectively catalyze TMB–H2O2 in ultrapure water; thus, a visual chemosensor and electronic spectrum quantitative analysis method for Cr6+ based on chromium-stimulated peroxidase mimetic activity of rGO/PEI/Au nanohybrids were establishedH2O2Color