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). pp. 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, 5 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, meso-silica materials, chemisorption, air pollution, Chemistry|
|Subjects:||Science > Chemistry|
|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:||05 Mar 2014 14:57|
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