Computer-aided design and construction of a novel electro-responsive ion-imprinted sensor for the individual/simultaneous detection of Cd(II) and Pb(II) in water environments.

A novel method for detecting Cd(II) and Pb(II) in water using composite ion-imprinted membranes (Cd@Pb-IIM/Ag@MOF@CHI) was developed. Pre-polymerization ratios were optimized via computer simulations and applied on Ag@MOF@CHI-modified electrodes using infrared light initiation. Characterization of the membranes through SEM and electrochemical methods revealed detailed morphology and composition. The sensor showed a dynamic linear response for Cd(II) and Pb(II) concentrations ranging from 1.1 × 10 ^-9 to 1.2 × 10 ^-6  mol L ^-1 , with a detection limit of 1.0 × 10 ^-10  mol L ^-1 . In samples with various non-target ions, the sensor exhibited high selectivity, attributed to the optimal coordination ratio (Cd(II): Pb(II): PAR = 1:1:3). Successful tests were conducted in tap, lake, and river water, highlighting its potential for environmental monitoring.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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