Open AccessThe effect of lead and nickel cations on AgInS2/ZnS nanocrystals photoluminescence in aqueous solution
Author(s) -
O. A. Korepanov,
D. S. Mazing,
О.В. Александрова,
В. А. Мошников
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1410/1/012024
Subject(s) - photoluminescence , nanocrystal , quenching (fluorescence) , aqueous solution , materials science , nickel , ion , lead sulfide , band gap , fluorescence , luminescence , nanotechnology , inorganic chemistry , analytical chemistry (journal) , chemical engineering , chemistry , optoelectronics , quantum dot , metallurgy , optics , physics , environmental chemistry , organic chemistry , engineering
A sensing fluorescent probe based on the photoluminescence (PL) quenching of the AgInS2 colloidal nanocrystals (NCs) with a wide bandgap ZnS shell was studied for lead ions detection. The results were compared with the work where the influence of nickel ions presence on PL was studied. Addition of lead cations was accompanied by decreasing of PL intensity of the AgInS 2 /ZnS NCs and redshift of maxima of PL spectra. The quenching effect was described by the Stern–Volmer relationship. The obtained results could be useful for the development of new express-methods for heavy metal detection in aqueous media.