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Acridine‐Thiosemicarbazones‐Stabilized Silver Nanoparticles as a Selective Sensor for Copper(II)‐Ion in Tap Water
Author(s) -
Ali Imdad,
Isaac Ibanga Okon,
Ahmed Farid,
Aslam Fariha,
Ali Shujaat,
Imran Muhammad,
Alharthy Rima D.,
Shah Muhammad Raza,
Malik Muhammad Imran,
Hameed Abdul
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201901381
Subject(s) - copper , fourier transform infrared spectroscopy , chemistry , silver nanoparticle , detection limit , tap water , quenching (fluorescence) , nanoparticle , aqueous solution , photochemistry , nuclear chemistry , ion , fluorescence , metal ions in aqueous solution , inorganic chemistry , analytical chemistry (journal) , materials science , nanotechnology , chemical engineering , chromatography , organic chemistry , environmental engineering , physics , quantum mechanics , engineering
Environmental pollution due to heavy metals ions is becoming a serious threat to human health. In this study, we have synthesized acridine‐thiosemicarbazones‐stabilized silver nanoparticles ( AT‐AgNPs) to explore their cation sensing ability and selectivity for detection copper(II)‐ion in aqueous system. Newly synthesized nanoparticle were characterized using various spectroscopic techniques such as ultraviolet–visible, Fourier‐transform infrared (FTIR), atomic force microscopy (AFM) and Zetasizer. The average size of the highly robust AT‐AgNPs was found to be in the range of 70–90 nm. The photophysical potential of AT‐AgNPs was explored using ultraviolet–visible spectroscopy. Addition of copper(II)‐ion induce significant quenching in the absorption intensity of AT‐AgNPs , whereas all other tested metals did not produce any detectable change in the UV‐visible spectrum. Further, the limit of detection (LOD) was determined by employing standard deviation method which is found to be 1 μ M with a R 2 equal to 0.9931. The synthesized AT‐AgNPs were highly selective for copper(II)‐ion in presence of other interferents like salts, and other metal ions. Moreover, the AT ‐ AgNPs were effectively and efficiently employed for the same purpose in tap water.