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K 6 Sn[Zn 4 Sn 4 S 17 ]: a sulfide-based zeolite-like material that shows enormous affinity for mercury ions (Mercouri

K 6 Sn[Zn 4 Sn 4 S 17 ]: a sulfide-based zeolite-like material that shows enormous affinity for mercury ions (Mercouri G Kanatzidis, DMR-0443785). A super-tetrahedral [Zn 4 Sn 4 S 17 ] 10- cluster. Typical crystals Before and after Ion-exchange.

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K 6 Sn[Zn 4 Sn 4 S 17 ]: a sulfide-based zeolite-like material that shows enormous affinity for mercury ions (Mercouri

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  1. K6Sn[Zn4Sn4S17]: a sulfide-based zeolite-like material that shows enormous affinity for mercury ions (Mercouri G Kanatzidis, DMR-0443785) A super-tetrahedral [Zn4Sn4S17]10- cluster Typical crystals Before and after Ion-exchange {Sn[Zn4Sn4S17]}6- is the first extended framework based on super-tetrahedral clusters linked via Zn ions. Depiction of the empty space (grey areas are where the atoms are not) The open framework structure of K6Sn[Zn4Sn4S17] DMR-0443785

  2. K6Sn[Zn4Sn4S17]: a sulfide-based zeolite-like material • The compound K6Sn[Zn4Sn4S17] is ion-exchange properties reminiscent of small pore zeolites. • K6Sn[Zn4Sn4S17]: exchanges its K ions for heavy metal ions such as Hg2+ and Pb2+. • The material can remove selectively Hg2+ and Pb2+ ions from water solutions and may have potential for applications in heavy metal environmental remediation. • The synthesis of K6Sn[Zn4Sn4S17] was achieved with the alkali polychalcogenide flux method. • We are currently investigating the ion-exchange properties in more detail. • We strongly believe that detailed fundamental and exploratory studies of open framework sulfides as ion-exchangers for heavy metal ions could contribute significantly to separation science. DMR-0443785

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