PCN-222@g-C₃N₄ cathodic materials for "signal-off" photoelectrochemical sensing of kanamycin sulfate.

ABSTRACT: A novel cathodic photoelectrochemical (PEC) sensor was developed for the ultrasensitive detection of kanamycin sulfate (KAM) based on the g-C₃N₄ coupled zirconium-based porphyrinic metal-organic framework (PCN-222). Photocathodes made by double n-type semiconductors, which was attributed to the transfer of electrons and holes from g-C₃N₄ broad band to PCN-222 with narrow band gap. The photocurrent decreased when KAM was added, which was conducive to the construction of the PEC sensor. Then, the PCN-222@g-C₃N₄ was used as a photosensitive platform to construct a label-free strategy and ultrasensitive detection of KAM with wide linear range from 1 to 1000 nM and a low detection limit of 0.127 nM. Moreover, this sensing platfor

SUBMITTER: Dong W 

PROVIDER: S-EPMC9038066 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature