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Updated: Jun 24, 2026

A Dual-Functional Electroactive Filter Towards Simultaneously Sb(III) Oxidation and Sequestration
Published on: December 5, 2019
Sequestration of heavy metals from water with layered metal sulfides
Manolis J Manos1, Mercouri G Kanatzidis
1Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208-3113, USA.
Abstract:
Extraordinarily effective heavy metal ion scavenger: We show here that the material K(2x)Mn(x)Sn(3-x)S(6) (x = 0.5-0.95) (KMS-1) overcomes the limitations of the known heavy metal ion sorbents, showing the capability to rapidly reduce the concentrations of Cd, Hg, and Pb ions well-below the legally acceptable levels for drinking water. KMS-1 is inexpensive, easily prepared in large quantities, and may play a role in addressing the global problem of water contamination with heavy metal ions. The paradigm of heavy metal ion absorption of KMS-1 is the ability to form very strong M-S bonds.
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