Synthesis of Ag(I)@Fum-Pr-Pyr-Benzimidazole and Its Optical and Catalytic Activities in Click Reactions

摘要

A hydrophilic fumed silica was used as a support and modified by benzimidazole scaffold, which can be chelate with silver as a highly selective and sensitive receptor to the successive detection of Ag+ ion. Fluorescence properties of Fum-Pr-Pyr-Benzimidazole were verified by the addition of various cations in an aqueous medium, and its high selectivity and sensitivity toward Ag+ ion was observed. Silver ion was placed onto the Fumed-SiO2 to prepare Ag(I) @Fum-Pr-Pyr-Benzimidazole catalyst using in click chemistry. A number of characterization analyses were used, including FT-IR, SEM, BET, and EDX, to prove that the Pr-Pyr-Benzimidazole and Ag (I) were homogeneously distributed on the fumed-silica. EDX and SEM analysis were used to characterize the active component distribution.