Functionalized Nanoporous Ceramic Sorbents for Removal of Mercury and Other Contaminants

	Clean Technology 2007 Chapter 8: Nanoparticle Processes & Applications
	Functionalized Nanoporous Ceramic Sorbents for Removal of Mercury and Other Contaminants
Authors:	S.V. Mattigod, G.E. Fryxell, R. Skaggs and K.E. Parker
Affilation:	Pacific Northwest National Laboratory, US
Pages:	259 - 261
Keywords:	nanoporus, ceramic, functionalization, sorbents
Abstract:	A new class of high-performance nanoporous sorbents has been developed for heavy metal removal that overcomes the deficiencies of existing technologies. These novel materials are created from a combination of synthetic mesoporous ceramic substrates that have specifically tailored pore sizes (2 to 10 nm) and very high surface areas (~1000 m2/g) with self-assembled monolayers of well-ordered functional groups that have high affinity and specificity for specific types of free or complex cations or anions. These sorbents known as SAMMS™ (Self-Assembled Monolayers on Mesoporous Silica) are hybrids of two frontiers in materials science: molecular self-assembly techniques and nanopororous materials. One form of SAMMS™ containing monolayers of mercaptopropyl- trismethoxy silane has shown exceptional sorptive properties for mercury and other soft cations such as silver, cadmium, and lead. Another form of SAMMS™ with a functional monolayer consisting of ethylenediamine-Cu(II) complex (Cu-EDA) specifically adsorbs tetrahedral oxyanions such as arsenate, selenate, molybdate, chromate and pertechnetate even in the presence of high concentrations of sulfate. Separation of actinides can be addressed by SAMMS™ material synthesized with a set of monolayer functionalities consisting of hydroxypyridinones, acetamide and propinamide phosphonates. These nanoporous sorbents offer a better choice for efficient and cost-effective removal contaminants from diverse waste streams.

ISBN:	1-4200-6382-0
Pages:	338
Order:	Online/Mail/Fax Ordering Options
Indexes:	Keywords, Authors, Affiliations
Up

Join Us

Featured Events

2013 Asia Pacific Clean Energy Summit & Expo
(joint with 2013 Islands & Isolated Communities Congress)
Honolulu, Hawai'i, September 9-11, 2013

2013 Defense Energy Summit
Austin, TX, November 11-13, 2013

Cleantech 2014
(joint with TechConnect World)
Washington DC,June 15-19, 2014

"We've very much enjoyed being a member of CTSI. In addition to the many networking and conference opportunities, we've found the monthly newsletters to be the best consolidated source of clean technology industry information and updates on policy, grants and market intelligence."

- Patrick J. Piper, QM Power, Inc.

"Ener-G-Rotors is pleased to be a member of CTSI. CTSI has been very supportive of our efforts in clean technology, helping to connect us with key legislators, introducing us to contacts at the DOE, and providing opportunities to network with other clean technology companies."

- Michael Newell, Ener-G-Rotors, Inc.

"The Clean Technology and Sustainable Industries Organization brings together the world's most innovative companies to provide critical thinking and technology solutions to real-world challenges."

- Dr. Ray O Johnson, Senior Vice President and Chief Technology Officer, Lockheed Martin

Clean Technology 2007

Chapter 8: Nanoparticle Processes & Applications

Functionalized Nanoporous Ceramic Sorbents for Removal of Mercury and Other Contaminants