Fe3O4@ Cu/C and Fe3O4@ CuO Composites Derived from Magnetic Metal–Organic Frameworks Fe3O4@ HKUST-1 with Improved Peroxidase-Like Catalytic Activity

References

ref title DOI material type comment
3582 394 Fe3O4@ Cu/C and Fe3O4@ CuO Composites Derived from Magnetic Metal–Organic Frameworks Fe3O4@ HKUST-1 with Improved Peroxidase-Like Catalytic Activity https://doi.org/10.1007/s10562-019-02964-8 Composite Fe3O4@Cu/C and Fe3O4@CuO Composites Derived from Magnetic Metal–Organic Frameworks Fe3O4@HKUST‑1

Materials

ref material size size err size unit size type size comment BET b nanozyme b 10n b unit specific act sa 10n sa unit comment
7633 394 Fe3O4@Cu/C nm TEM However, calcination at a higher temperature and a long time caused serious collapse of the structure, leading to the disappearance of original morphology. It can be found that Fe3O4@CuO composites fail to inherit the original octahedral structure and present nearly spherical (Fig. 3a, c). From TEM image (Fig. 3e, f), the constructions of Fe3O4@HKUST-1 composites are shrunk in certain degree and the sizes are reduced, whether the composites were calcined in N2 or air atmosphere. 112.1
7632 394 Fe3O4@CuO nm TEM However, calcination at a higher temperature and a long time caused serious collapse of the structure, leading to the disappearance of original morphology. It can be found that Fe3O4@CuO composites fail to inherit the original octahedral structure and present nearly spherical (Fig. 3a, c). From TEM image (Fig. 3e, f), the constructions of Fe3O4@HKUST-1 composites are shrunk in certain degree and the sizes are reduced, whether the composites were calcined in N2 or air atmosphere. 45.8

Kinetics

ref material enzyme type substrate pH T km km err km 10n km unit vmax vmax err vmax 10n vmax unit kcat kcat err kcat 10n kcat unit kcat/km kcat/km 10n kcat/km unit comment
6275 394 Fe3O4@Cu/C POD H2O2 4.0 45 0.027 mM 6.61 -8 M/s 394 394
6274 394 Fe3O4@CuO POD H2O2 4.0 45 0.094 mM 2.97 M/s 394
6273 394 Fe3O4@CuO POD TMB 4.0 45 1.97 mM 13.77 M/s 394
6272 394 Fe3O4@Cu/C POD TMB 4.0 45 1.87 mM 13.54 -7 M/s 394

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5305 394 Fe3O4@Cu/C To evaluate the peroxidase catalytic performance of Fe3O4@Cu/C and Fe3O4@CuO composites, catalytic experiments were performed toward the oxidative degradation of model organic dyes (MB)
5304 394 Fe3O4@CuO To evaluate the peroxidase catalytic performance of Fe3O4@Cu/C and Fe3O4@CuO composites, catalytic experiments were performed toward the oxidative degradation of model organic dyes (MB)