Construct of Carbon Nanotube-Supported Fe2O3 Hybrid Nanozyme by Atomic Layer Deposition for Highly Efficient Dopamine Sensing

References

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717Construct of Carbon Nanotube-Supported Fe2O3 Hybrid Nanozyme by Atomic Layer Deposition for Highly Efficient Dopamine Sensinghttps://doi.org/10.3389/fchem.2020.564968Compositedeposit Fe2O3 on surfaces of carbon nanotubes to form hybrid nanozymes (Fe2O3/CNTs)

Materials

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BET
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717Fe2O3/CNTsTEMIt is obvious that these nanoparticles are uniformly distributed with diameter of around 1 nm. When 15 cycles of Fe2O3 were applied, a higher density of nanoparticles with larger size of around 2 nm on CNTs was observed both in HRTEM (Figure 1E) and HAADF (Figure 1F) images.24.5U/mg

Kinetics

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71710Fe2O3/CNTsPODH2O20.704mM17.43-8M/s717
71710Fe2O3/CNTsPODTMB0.515mM14.61-8M/s717

Applications

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717Fe2O3/CNTsHighly Efficient Dopamine SensingDopamine (DA)Color0-25μM0.11μM