UV-assisted one-pot synthesis of bimetallic Ag-Pt decorated reduced graphene oxide for colorimetric determination of hydrogen peroxide

References

ref title DOI material type comment
4055 869 UV-assisted one-pot synthesis of bimetallic Ag-Pt decorated reduced graphene oxide for colorimetric determination of hydrogen peroxide https://doi.org/10.1007/s00604-020-04350-3 Composite The nanocomposites were prepared through a one-pot reduction of potassium chloroplatinate, silver nitrate, and graphene oxide under ultraviolet irradiation without using any extra chemical reducing agents or surfactants. The successful formation of Ag-Pt/rGO nanocomposites was confirmed by transmission electron microscopy, energy disperse spectroscopy mapping, X-ray photoelectron spectroscopy, and X-ray diffraction analysis. Significantly, Ag-Pt/ rGO nanocomposites possessed excellent peroxidase-like activity toward the catalytic oxidation of 3,3′,5,5′-tetramethylbenzidine to form a blue product in the presence of hydrogen peroxide.

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
8064 869 Ag-Pt/rGO 20 nm TEM spherical Ag-Pt NPs with the size of about 20 nm (n = 50) are well dispersed on the surface of rGO.

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
6766 869 Ag-Pt/rGO POD TMB 3.24 mM 20 -8 M/s 869

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5796 869 Ag-Pt/rGO a convenient and sensitive method for the colorimetric determination of hydrogen peroxide was developed H2O2 10-100 μM 0.09 μM