Journal
JOURNAL OF FLUORESCENCE
Volume -, Issue -, Pages -Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10895-023-03417-7
Keywords
Fumed-Si-Pr-PNS; Fumed silica; Chemo sensor; Photoluminescence sensor; Hg2+ ion
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In this study, fumed silica was functionalized by piperazine and 2-naphthalenesulfonyl chloride to prepare Fumed-Si-Pr-Piperazine-Naphthalenesulfonyl chloride (Fumed-Si-Pr-PNS), which showed effective attachment on the surface of fumed silica. The optical sensing ability of Fumed-Si-Pr-PNS was studied and it was found to selectively detect Hg2+ ions in water solution.
Fumed silica was functionalized by piperazine followed by the reaction with 2- naphthalenesulfonyl chloride to prepare Fumed-Si-Pr-Piperazine-Naphthalenesulfonyl chloride (Fumed-Si-Pr-PNS), which was characterized to demonstrate the effective attachment on the surface of fumed silica. The optical sensing ability of Fumed-Si-Pr-PNS was studied via diverse metal ions in H2O solution by photoluminescence spectroscopy. The results showed that Fumed-Si-Pr-PNS detected selectively Hg2+ ions. The prepared sensor showed almost high absorption at different pH for Hg ion. After drawing various diagrams, The detection limits were calculated at about 12.45 x 10(-6) M for Hg2+.
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