Exploitation of a Series of Zinc(II)-Coordination Polymers for Palladium(II)-Detection in Aqueous Medium
Abstract
Palladium (Pd) is an important catalyst in different oxidation states (0, II, IV) in the synthesis of industrially, pharmaceutically and analytically important molecules. Trace amount (5-10 ppm) of Pd(0,II,IV) in the end product makes it heavily toxic and even fatal to human health. Different strategy has been explored for detection of trace quantity of Palladium in aqueous medium. In this work, a series of reported Zn(II) coordination polymers (CPs) have been utilized to sense Pd(II) in water. The quantitative measurements of three materials presented brilliant level of quenching constant values among the reported CPs for the sensing of Pd2+ below the allowable limits set by the WHO. Thus, the present work establishes the potential exploitation of fluorescent CPs for practical detection of harmful Pd2+ metal ions in aqueous medium.