Highly selective colorimetric determination of catechol based on the aggregation-induced oxidase–mimic activity decrease of δ-MnO 2

References

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DOI
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1446Highly selective colorimetric determination of catechol based on the aggregation-induced oxidase–mimic activity decrease of δ-MnO 2https://doi.org/10.1039/c9ra10480aMetal oxideBirnessite-type MnO2 (d-MnO2)

Materials

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BET
b nanozyme
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1446d-MnO2272.620nmDLSthe hydrodynamic radius of MnO2 was approximately 272.6 20 nm at pH 3.73

Kinetics

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Applications

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1446d-MnO2detection of CatecholCatecholColor0.5-10μM218nM94.80% - 99.56%The recovery ratios of catechol in tap water, reuse water and river water are shown in Table 2, with small RSD values (less than 10.00%) and good recovery (94.80% to 99.56%).