Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-27T01:39:54.403Z Has data issue: false hasContentIssue false
  • English
  • Français

Remediation of Dissolved Organic Pollutants in Water Using Organosilica-Based Materials that Rapidly and Reversibly Swell

Published online by Cambridge University Press:  31 January 2011

Paul L Edmiston  and
Laura A Underwood
Paul L Edmiston
Affiliation:
[email protected], College of Wooster, Chemistry, 943 College Mall, Wooster, Ohio, 44691, United States, 330-263-2113
Laura A Underwood
Affiliation:
[email protected], College of Wooster, Chemistry, Wooster, Ohio, United States
Get access

Abstract

A sol-gel derived organosilica material that energetically swells when exposed to organic molecules was tested as a means to extract dissolved organic species from water. Swellable organically modified silica (SOMS) was demonstrated to be effective at removing butanol, methyl t-butyl ether (MTBE), tetrachloroethylene, trichloroethylene, ethanol, and toluene from lab grade water, salt water, and natural waters. Partition coefficients for the absorption of organic species from water by SOMS ranged from 2.8�105 – 1.0�102, and vary depending on polarity of the contaminant, concentration, and the total mass of contaminant absorbed. Absorption of organic species to SOMS appears to be enhanced by matrix expansion of nanometer sized pores leading to non-selective capture of organics beyond what could be attributed to physisorption.

Keywords

absorbentpurificationpolymer
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1169: Symposium Q – Materials Science of Water Purification , 2009 , 1169-Q06-17
Copyright
Copyright © Materials Research Society 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Burkett, C.M., Edmiston, P.L., J. Non-Crystalline Solids, 351, 3174–3178 (2005).Google Scholar
2 Burkett, C.M., Underwood, L.A., Volzer, R.S., Baughman, J.A., Edmiston, P.L., Chem. Mater. 20, 1312–1321 (2008).Google Scholar
3 Bandosz, J., Ed. Activated Carbon Surfaces in Environmental Remediation, Elsevier, Amsterdam, San Diego, 2006.Google Scholar
4 Flanigen, E.M., Bennett, J.M., Grose, R.W., Cohen, J.P., Patton, R.L., Kirchner, R.M., Smith, J. V., Nature 271, 512–516 (1978).Google Scholar
5 Shea, K.J., Moreau, J., Loy, D.A., Corriu, J.P., Boury, B., In: Functional Hybrid Materials, Gomex-Romero, P., Sanchez, C., (Eds.), Wiley-VCH, Weinheim, 2004, pp. 50–85.Google Scholar
6 Cerveau, G.,; Corriu, R.J.P., Lepeytre, C., J. Mater. Chem. 5, 793–795 (1995).Google Scholar
7 Zwank, L., Schmidt, T.C., Handerlain, S.B., Berg, M., Environ. Sci. Technol. 36, 2054–2059 (2002).Google Scholar
8 Niri, V.H., Bragg, L., Pawliszyn, J, J. Chromatogr. A 1201, 222–227 (2008).Google Scholar
9 Brunauer, S.; Emmett, P. H.; Teller, E. J. Am. Chem. Soc. 1938, 60, 309.Google Scholar
10 Barrett, E. P.; Joyner, L. G.; Halenda, P. H. J. Am. Chem. Soc. 1951, 73, 373.Google Scholar
11 Borneff, J., In: Activated Carbon Adsorption of Organics from the Aqueous Phase, Vol 1. McGuire, M.J., Suffet, I.H., (Eds.) Ann Arbor Science Publishers, Ann Arbor 1990.Google Scholar