Next Article in Journal
A Novel Hydrazinecarbothioamide as a Potential Corrosion Inhibitor for Mild Steel in HCl
Next Article in Special Issue
Preparation of Palladium-Supported Periodic Mesoporous Organosilicas and their Use as Catalysts in the Suzuki Cross-Coupling Reaction
Previous Article in Journal
Chitosonic® Acid as a Novel Cosmetic Ingredient: Evaluation of its Antimicrobial, Antioxidant and Hydration Activities
Previous Article in Special Issue
Grafting of Amines on Ethanol-Extracted SBA-15 for CO2 Adsorption
Materials 2013, 6(4), 1403-1419; doi:10.3390/ma6041403

Extraction of Perchlorate Using Porous Organosilicate Materials

1,* , 2
1 Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, DC 20375, USA 2 NOVA Research Incorporated, Alexandria, VA 22308, USA 3 Chemistry Department, US Naval Academy, Annapolis, MD 21402, USA
* Author to whom correspondence should be addressed.
Received: 24 January 2013 / Revised: 21 March 2013 / Accepted: 22 March 2013 / Published: 2 April 2013
(This article belongs to the Special Issue Advances in Mesoporous Materials)
View Full-Text   |   Download PDF [763 KB, uploaded 2 April 2013]   |  


Sorbent materials were developed utilizing two morphological structures, comprising either hexagonally packed pores (HX) or a disordered pore arrangement (CF). The sorbents were functionalized with combinations of two types of alkylammonium groups. When capture of perchlorate by the sorbents was compared, widely varying performance was noted as a result of differing morphology and/or functional group loading. A material providing improved selectivity for perchlorate over perrhenate was synthesized with a CF material using N-trimethoxysilylpropyl-N,N,N-trimethylammonium chloride. Materials were applied in batch and column formats. Binding isotherms followed the behavior expected for a system in which univalent ligands of varying affinity compete for immobilized sites. Performance of the sorbents was also compared to that of commercial Purolite materials.
Keywords: periodic mesoporous organosilica; perchlorate; solid phase extraction; groundwater monitoring periodic mesoporous organosilica; perchlorate; solid phase extraction; groundwater monitoring
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Supplementary material


Share & Cite This Article

Further Mendeley | CiteULike
Export to BibTeX |
EndNote |
MDPI and ACS Style

Johnson, B.J.; Leska, I.A.; Melde, B.J.; Siefert, R.L.; Malanoski, A.P.; Moore, M.H.; Taft, J.R.; Deschamps, J.R. Extraction of Perchlorate Using Porous Organosilicate Materials. Materials 2013, 6, 1403-1419.

View more citation formats

Related Articles

Article Metrics

For more information on the journal, click here


[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert