A novel luminescent chemical sensor for the determination of Pb2+ and Cu2+ ions

Andrzej Marian Kłonkowski , Maja Orłowska , Jacek Ryl


Silica xerogel surface grafted with aminopropyl (PrNH2) groups was additionally treated by cetyltrimethylammonium bromide (CTAB) surfactant and ascorbic acid (asc) in alkaline solution. This material symbolized as SiO2-PrNH2-CTAB/asc, proved to be a stable luminescent material, exhibited an emission band peaked at 393 nm under excitation wavelength 335 nm. Time evolution of the band intensity suggests changes of defect concentration on the silica surface owing to modification reaction with alkaline mixture of CTAB and asc. After this treatment the material could serve as a luminescence recognition element revealing selectively Cu2+ cations in presence of other metal ions in solutions. On the other hand, emission spectra excited by wavelength 236 nm confirmed selectively presence of Pb2+ and simultaneously Cu2+ cations in aqueous solutions. In this way the luminescent material could play the role of INHIBIT and YES logic gates for both the mentioned cations.
Author Andrzej Marian Kłonkowski (FCh)
Andrzej Marian Kłonkowski,,
- Faculty of Chemistry
, Maja Orłowska (FCh)
Maja Orłowska,,
- Faculty of Chemistry
, Jacek Ryl
Jacek Ryl,,
Journal seriesSensors and Actuators B - Chemical, ISSN 0925-4005, (A 40 pkt)
Issue year2017
Publication size in sheets0.5
Keywords in Englishluminescence recognition material, Pb2+, Cu2+, selectivity, logic gate
ASJC Classification2208 Electrical and Electronic Engineering; 2504 Electronic, Optical and Magnetic Materials; 2505 Materials Chemistry; 2506 Metals and Alloys; 2508 Surfaces, Coatings and Films; 3104 Condensed Matter Physics; 3105 Instrumentation
URL http://doi.org/10.1016/j.snb.2017.01.163
Languageen angielski
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 24-04-2020, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.463; WoS Impact Factor: 2017 = 5.667 (2) - 2017=5.118 (5)
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