Biphasic Composite for Acidic and Basic Gas Adsorption

Summary

Researchers at Vanderbilt University have developed a novel material with high adsorbent capacity for toxic industrial chemicals of low concentrations in air. Due to the broad range of chemicals that can be adsorbed at these capacities, this technology will replace existing commercial and research grade materials serving as respirator adsorbents and single pass filters for a variety of military and non-military applications.

Addressed Need

• Over 70 different chemicals have been used or stockpiles as chemical weapon agents during the 20th century, many of which are lethal
• Many chemicals are difficult to detect due to low concentrations but commonly travel through air or water
• Existing commercial and research grade adsorbent materials have limited adsorption capacities and narrow chemical ranges, making them less effective for protection against chemical warfare

Technology Description

The technology is a biphasic adsorbent material comprising a grafted molecule phase and an inorganic oxide phase. It is intended to remove contaminating molecules from fluids such as toxic acidic and basic gases from the air. Compared to existing products, it has enhanced adsorption capacity and stability resulting in the removal of a broader range of chemicals. The high surface area and regularly repeating structures along with intrinsic capacity for some light gases make it suitable for a variety of applications. Furthermore, with post synthetic modification the adsorption capacities of the material can easily be tailored.

Commercial Applications

• Single pass filters and respirator absorbents of various types such as building filtration or protection of military personnel and civilians
• Removal of a broad range of contaminants such as toxic acidic and basic gases from the air

Competitive Advantages

• Enhanced adsorption capacity and stability resulting in a broader range of chemical removal compared to existing commercial and research grade products
• High single pass capacities for both sulfur dioxide and ammonia
• Regularly repeating groups allow for post synthetic modification which easily tailors the adsorption capacities to light gases

Intellectual Property Status

A Utility Patent Application has been filed.
Click for Inventor Bio: http://frontweb.vuse.vanderbilt.edu/vuse_web/directory/facultybio.asp?facultyid=22061
For more information: http://pubs.rsc.org/en/content/articlehtml/2011/jm/c1jm10451a
Research Lab: http://www.vanderbilt.edu/vinse/personnel_details.php?personnelcatid=1&personnelid=490

Inventors: 
M. Douglas LeVanAmanda FurtadoYu WangGreg Peterson
Licensing manager: 
Ashok Choudhury

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