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SBA-Pr-IS-MN synthesis and its application as Ag$\mathplus$ optical sensor in aqueous media

, , , and . Research on Chemical Intermediates, 47 (7): 2845--2855 (March 2021)
DOI: 10.1007/s11164-021-04431-9

Abstract

A new functionalized mesoporous silica entitled SBA-Pr-IS-MN was produced and characterized by diverse techniques like FT-IR, TGA, XRD, SEM, TEM, and BET. SBA-Pr-IS-MN was obtained by functionalizing SBA-Pr-Cl with Isatin and Malononitrile; also, its sensor activity was studied upon the addition of a wide variety of cations and anions by fluorescent spectroscopy. It was demonstrated that the addition of Ag+ quenched the fluorescence intensity. There was a good linear relationship with an appropriate detection limit of 4.18 × 10−6 M.

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