Highly selective colorimetric naked-eye Cu2+ detection using new bispyrazolone silver nanoparticle-based chemosensor
| Autor: | Muhammad Ateeq, Abdul Khalique, Muhammad Tariq Khan, Muhammad Raza Shah, Perveen Fazil, Munira Taj Muhammad, Azeem Ullah, Imran Ahmed Khan, Faheem Shah |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Health
Toxicology and Mutagenesis Pyrazolone Soil Science Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences Silver nanoparticle Analytical Chemistry TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY medicine Environmental Chemistry Waste Management and Disposal Water Science and Technology Aqueous medium Atomic force microscopy Chemistry Public Health Environmental and Occupational Health 021001 nanoscience & nanotechnology Highly selective Pollution 0104 chemical sciences Naked eye 0210 nano-technology Nanoconjugates medicine.drug |
| Zdroj: | International Journal of Environmental Analytical Chemistry. 98:977-985 |
| ISSN: | 1029-0397 0306-7319 |
| Popis: | In this work, we have successfully developed novel silver nanoconjugates of pyrazolone analogue and screened its chemosensing potential in aqueous medium. Bispyrazolone silver nanoparticles (Bispyra-AgNPs) were synthesised and characterised through FTIR, UV-visible spectroscopy and atomic force microscopy. The sensing ability was explored towards Ca2+, Cd2+, Co2+, Cu2+, Fe2+, Li+, Pb2+, La3+, Hg2+, Mg2+, Ni2+ and Ba2+ metal ions, respectively. Bispyra-AgNPs showed a highly quenching potential in selective recognition of Cu2+and colour of the solution immediately turned from yellow to purple, after the addition of Cu2+ in to the solution. The developed method also displayed a remarkable selectivity for Cu2+ over others interfering metal ions. The binding ratio and stoichiometry of host-guest complex was found to be 1:1 and determined by Job’s method. The propose method is facile and sensitive to detect Cu2+ with detection limit of 10 µM. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|