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  • Title: A Series of Iodoargentates Directed by Solvated Metal Cations Featuring Uptake and Photocatalytic Degradation of Organic Dye Pollutants.
    Author: Wei Q, Wang D, Pan J, Han SD, Wang GM.
    Journal: Chem Asian J; 2019 Mar 01; 14(5):640-646. PubMed ID: 30644166.
    Abstract:
    By using solvated metal cations as structure-directing agents, three new iodoargentates, namely, [Fe(DMSO)6 ][Ag6 I9 ]⋅DMSO (1), [Fe(H2 O)6 ][Ag15 I18 ] (2) and [Cd(DMSO)6 ][Ag8 I10 ] (3) (DMSO=dimethyl sulfoxide) have been solvothermally prepared and structurally characterized. The structures of compounds 1 and 2 can be described as 1D chains constructed from the linkage of [Ag6 I9 ] and [Ag5 I11 ] building units, respectively. For compound 3, the [Ag10 I22 ] building blocks are directly interconnected to form a 2D [Ag8 I10 ] layer, which are further interconnected via intermolecular forces to generate a 3D supramolecular framework with 1D large channels occupied by [Cd(DMSO)6 ]2+ cations. Interestingly, compounds 1-3 exhibit an ion-exchange behavior for the adsorption of a specific dye (methylene blue, MB). Moreover, photocatalytic experiments indicate that these iodoargentates can be considered as promising photocatalysts for the degradation of organic dye pollutants.
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