Rapid and highly selective colorimetric detection of nitrite based on the catalytic-enhanced reaction of mimetic Au nanoparticle-CeO2 nanoparticle-graphene oxide hybrid nanozyme

References

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759Rapid and highly selective colorimetric detection of nitrite based on the catalytic-enhanced reaction of mimetic Au nanoparticle-CeO2 nanoparticle-graphene oxide hybrid nanozymehttps://doi.org/10.1016/j.talanta.2020.121875CompositeAuNP–CeO2 NP@GO hybrid nanozyme

Materials

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759AuNP–CeO2 NP@GOSEMFrom the SEM images, we observed a combination of clumped particles of AuNP–CeO2 NPs spread across the surface of crumpled flaky sheets of stacked, folded and wrinkled GO. The observed morphological feature provides a strong affirmation that AuNP–CeO2 NPs were effectively anchored onto GO nanosheets

Kinetics

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Applications

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759AuNP–CeO2 NP@GOdetection of nitriteNitriteColor100-5000μM4.6μM