Fumed-Si-Pr-PNS as a Photoluminescence sensor for the Detection of Hg2+ in Aqueous Media

Sepideh Saberi Afshar; Ghodsi Mohammadi Ziarani; Fatemeh Mohajer; Alireza Badiei

doi:10.1007/s10895-023-03417-7

Fumed-Si-Pr-PNS as a Photoluminescence sensor for the Detection of Hg²⁺ in Aqueous Media

J Fluoresc. 2023 Sep 14. doi: 10.1007/s10895-023-03417-7. Online ahead of print.

Authors

Sepideh Saberi Afshar¹, Ghodsi Mohammadi Ziarani², Fatemeh Mohajer¹, Alireza Badiei³

Affiliations

¹ Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran.
² Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran. gmohammadi@alzahra.ac.ir.
³ School of Chemistry, College of Science, University of Tehran, Tehran, Iran.

PMID: 37707711
DOI: 10.1007/s10895-023-03417-7

Abstract

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 × 10^-6 M for Hg²⁺.

Keywords: Chemo sensor; Fumed silica; Fumed-Si-Pr-PNS; Hg2+ ion; Photoluminescence sensor.