Project TitleRemoval of Metals from Water with Semiconducting Aerogels from Chalcogenido Clusters
Track Code2007-012 and 2010-034
Short Description

A solution to removing select metals ions from water in an efficient and cost-effective manner.

#environment #remediation


Northwestern researchers have developed a unique family of adsorbents (KMS) that removes toxic and precious metals from aqueous streams more effectively and at a lower cost than existing technologies.  The metal sulfide based ion exchange micro-sorbent is composed of inexpensive, non-toxic elements and is produced by easily scalable processes.  The material is extremely cost-efficient for two reasons.  It has a high capacity which minimizes the amount of material required, and is recyclable following metal recovery.  Further, this material is effective at adsorbing metal ions at extremely low concentration levels (ppb/ppt).  This technology has significant applications across a number of industries, including mining, oil refinery, nuclear, and environmental and industrial waste.   More specific applications include feed water for boilers, pulp and paper production, cosmetics production and beverage production. 

• Antimony • Arsenic • Cadmium
• Chromium • Cobalt • Copper
• Gold    •Lead • Manganese
• Mercury • Nickel • Palladium
• Selenium • Silver • Thallium
• Uranium • Zinc

Tagsenvironment: remediation
Posted DateDec 14, 2012 2:12 PM


Mercouri G Kanatzidis*
Santanu Bag
Nan Ding
Emmanouil Manos
Joshua Mertz


• Environmental Remediation 
• Metal Capture


• Cost-effective solution due to its inexpensive material, high capacity and recyclability
• Performs in complex environment
• Effective capture of specific metals at low concentration levels
• Scalable
• Tested in the field

IP Status

Issued US Patent Nos. 7,727,506 and 8,070,959

Contact Information

Chao Zhang, PhD
Invention Manager
(p) 847.491.4629