Persistent peroxidase mimics of graphene oxide anchored cerium molybdate sensor: An effective colorimetric detection of S2− and Sn2+ ions

References

ref title DOI material type comment
3500 296 Persistent peroxidase mimics of graphene oxide anchored cerium molybdate sensor: An effective colorimetric detection of S2− and Sn2+ ions https://doi.org/10.1016/j.microc.2019.104290 Others cerium molybdate (CeM) and GO-cerium molybdate (GOCeM)

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
7541 296 CeM XRD The crystallite size of CeM was found ~3.1 nm. The length of cotiledones shaped CeM was observed ~ 10 μm, average diameter was ~ 2.5 μm and the average thickness of particles was 350 nm.

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
6182 296 GO-CeM (ex-situ) POD H2O2 0.44 mM 2.5 -8 M/s 296 296
6181 296 CeM POD H2O2 0.46 mM 0.99 -8 M/s 296
6180 296 CeM POD TMB 0.66 mM 1.71 -8 M/s 296
6179 296 GO-CeM (in-situ) POD H2O2 0.45 mM 1.42 -8 M/s 296
6178 296 GO-CeM (in-situ) POD TMB 0.39 mM 1.78 -8 M/s 296
6177 296 GO-CeM (ex-situ) POD TMB 0.3 mM 2.5 -8 M/s 296

Applications

ref material application target method linear range linear ran unit LOD lod unit recovery comment
5187 296 GO-CeM (ex-situ) Tin (Sn2+) ion detection Sn2+ Color 10-80 μM 5.58 μM
5186 296 GO-CeM (ex-situ) Sulfide (S2-) ion detection S2- Color 20-200 μM 11.70 μM