Ewlad-Ahmed, Abdunaser and Morris, Michael A. and Patwardhan, Siddharth and Gibson, Lorraine (2012) Removal of formaldehyde from air using functionalized silica supports. Environmental Science and Technology, 46 (24). 13354–13360. ISSN 0013-936XFull text not available in this repository. (Request a copy from the Strathclyde author)
This paper demonstrates the use of functionalized meso-silica materials (MCM-41 or SBA-15) as adsorbents for formaldehyde (H2CO) vapor from contaminated air. Additionally new green nanosilica (GNs) materials were prepared via a bioinspired synthesis route and were assessed for removal of H2CO from contaminated indoor air. These exciting new materials were prepared via rapid, 15 min, environmentally friendly synthesis routes avoiding any secondary pollution. They provided an excellent platform for functionalization and extraction of H2CO demonstrating similar performance to the conventional meso-silica materials. To the authors’ knowledge this is the first reported practical application of this material type. Prior to trapping, all materials were functionalized with amino-propyl groups which led to chemisorption of H2CO; removing it permanently from air. No retention of H2CO was achieved with nonfunctionalized material and it was observed that best extraction performance required a dynamic adsorption setup when compared to passive application. These results demonstrate the first application of GNs as potential adsorbents and functionalized meso-silica for use in remediation of air pollution in indoor air.
|Keywords:||formaldehyde , dynamic adsorption, meso-silica materials, Chemical engineering|
|Subjects:||Technology > Chemical technology > Chemical engineering|
|Department:||Faculty of Science > Pure and Applied Chemistry|
Faculty of Engineering > Chemical and Process Engineering
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|Depositing user:||Pure Administrator|
|Date Deposited:||11 Dec 2012 11:58|
|Last modified:||12 Jun 2013 16:04|
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