Title
1,10-Phenanthroline based colorimetric and fluorescent sensor for Hg2+ in water: Experimental and DFT study
Author
Yi-Wun Sie, Chia-Lin Li, Chin-Feng Wan, Jie-Hong Chen, Ching-Han Hu, An-Tai Wu
Year
2018
Journal
Inorganica Chimica Acta
Abstract
A novel colorimetric probe (L) was prepared and its metal ion sensing properties were investigated. Probe L exhibited obvious colorimetric response toward Hg2+ in water. The association constant for probe L-Hg2+ in water containing 0.5% DMSO (v/v) was determined as 1.77 × 105 M−1. The detection limit of probe L for the analysis of Hg2+was determined as 21.72 ppb. Moreover, probe L can be used for selective sensing of Hg2+ based on the obvious color changes in real samples. Further, the interaction between the probe L and Hg2+ was investigated by 1H NMR titration and the probable structure of probe L-Hg2+ complex was predicted by B3LYP method.
Instrument
FP-8300
Keywords
Fluorescence, Sensors, Inorganic chemistry, Quenching, Ligand binding, Chemical stability, Materials