Project TitleNovel Layered Metal-Sulfide Chalcogenide Material for Metal Ion Capture in Continuous Bed Flow Columns
Track Code2012-107, 2013-145
Short Description

Stable, layered chalcogenide material for capture of metal ions adapted for use in a continuous bed flow column 

#materials #metals #environment #remediation


Hospitals, mines and nuclear power plants are among the main sources of metal ions that pollute the environment. Treatment of waste on-site is the preferred mode of dealing with these pollution sources and is often accomplished by using clays and zeolites to remove metal ions from solutions. Recently, layered metal chalcogenide compounds were recognized as having a high binding capacity and increased selectivity. Northwestern University researchers have developed a new type of chalcogenide material, called KMS, which can be used for various environmental remediation purposes due to its stability and selectivity. Furthermore, the researchers were able to adapt this material for use in continuous bed flow columns that are standard in waste-water management. This has led to the invention of a new type of ion exchange column that can bind a variety of ions due to KMS while maintaining proper flow essential for efficient metal ion removal. 

Tagsenvironment: remediation, MATERIALS: metals
Posted DateJan 20, 2015 3:28 PM


Mercouri Kanatzidis*
Zohreh Hassanzadeh Fard
Debajit Sarma
Emmanouil Manos


  • Removal of heavy metals from the environment
  • Purification of water
  • Recovery of precious metals


  • Excellent capacity
  • High selectivity for heavy and precious metals
  • Low selectivity for hard ions
  • Stable in a variety of conditions
  • Cost-effective and environmentally friendly synthesis


IP Status

US and international patent applications have been filed. 

Marketing Contact

Chao Zhang, PhD

Invention Manager

(p) 847-491-4629