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Mesoporous Silica Based Recyclable Probe for Colorimetric Detection and Separation of PPB Level Hg

Mesoporous Silica Based Recyclable Probe for Colorimetric Detection and Separation of PPB Level Hg

Trisha Das, Debdas Singha, Ananya Pal, Mahasweta Nandi

Sci Rep. 2019 Dec 18;9(1):19378.

PMID: 31852977

Abstract:

Functional mesoporous silica probes, MCM-TFM and SBA-TFM, have been synthesized with varying pore sizes and having S-donor sites judiciously selected to bind soft metal centers. The soft S-donor centers are contributed by the thiol functional groups that are introduced into the silica matrices by functionalization with tris(4-formylphenyl)amine followed by 2-aminothiophenol. The materials rapidly and selectively detect Hg2+ colorimetrically and the change in color profile can be perceived through bare eyes. The probes can decontaminate the pollutant heavy metal from aqueous medium at ppb level and the materials are recyclable and reusable for several separation cycles.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP119001433	Tris(4-formylphenyl)amine		119001-43-3	Price

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