Simple, selective detection and efficient removal of toxic lead and silver metal ions using Acid Red 94.

ABSTRACT: Toward the goal of detecting toxic elements and removing them from drinking water, we report herein the utilization of Acid Red 94 (AR94) in sensing the hazardous metal ions in water. Among the various examined metal ions (Ag⁺, Pb²⁺, K⁺, Mn²⁺, Zn²⁺, La³⁺, Hg²⁺, Ca²⁺, Cd²⁺, Co²⁺, and Ni²⁺), the UV-visible absorption spectra showed high selectivity and sensitivity for toxic silver and lead metal ions in an aqueous solution. The observed absorption spectral changes and the rapid color changes confirm complex formation between AR94 and both Ag⁺ and Pb²⁺ metal ions. The emission measurements showed the significant fluorescence quenching of the singlet ex

SUBMITTER: Kamel GM 

PROVIDER: S-EPMC9061780 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature