A facile colorimetric sensor for ultrasensitive and selective detection of Lead(II) in environmental and biological samples based on intrinsic peroxidase-mimic activity of WS2 nanosheets

References

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title
DOI
material type
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289A facile colorimetric sensor for ultrasensitive and selective detection of Lead(II) in environmental and biological samples based on intrinsic peroxidase-mimic activity of WS2 nanosheetshttps://doi.org/10.1016/j.aca.2020.01.043SulfideWS2 nanosheets

Materials

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size
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size comment
BET
b nanozyme
b 10n
b unit
specific act
sa 10n
sa unit
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289WS250-300nmTEMAs shown in Fig. 1a, the WS2 nanosheets exhibit wrinkled sheets due to partial overlap and folding, and the diameter range of layer is determined as 50-300 nm.

Kinetics

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substrate
pH
T
km
km err
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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
289WS2PODH2O20.805mM22-8M/s289
289WS2PODTMB15.158mM65.23-8M/s289289

Applications

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application
target
method
linear range
linear ran unit
LOD
lod unit
recovery
comment
289WS2Pb detectionPbColor5-80μg/L4μg/L