Cation-exchange strategy for a colorimetric paper sensor: Belt-like ZnSe nanoframes toward visual determination of heavy metal ions

Employing belt-like ZnSe nanoframes as colorimetric reagents, a colorimetric paper sensor based on the cation-exchange strategy has been developed for the visual determination of heavy metal ions. [Display omitted] •A colorimetric paper sensor based on a cation-exchange strategy has been developed f...

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