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Sunlight-catalyzed conversion of cyclic organics with novel mesoporous organosilicas

Paper ID Volume ID Publish Year Pages File Format Full-Text
52663 46880 2007 5 PDF Available
Title
Sunlight-catalyzed conversion of cyclic organics with novel mesoporous organosilicas
Abstract

Porphyrin-embedded periodic mesoporous organosilica (PMO) materials were developed for sunlight-stimulated degradation of cyclic organics. The binding affinity and selectivity of the PMOs act to bring porphyrin and target into close proximity, provide extensive surface area, and a stable substrate for porphyrin immobilization. Aqueous samples incubated with these PMO materials showed a decrease in analyte concentration greater than that expected based on adsorption and uncatalyzed photoconversion during 5 h of sunlight illumination. Both materials show selective binding of TNT over structurally similar compounds such as p-nitrophenol. Template directed molecular imprinting was used in an attempt to increase the selectivity of the catalyst.

Keywords
Photocatalysis; Porphyrin; Molecular imprint; Mesoporous organosilica
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Sunlight-catalyzed conversion of cyclic organics with novel mesoporous organosilicas
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 7, July 2007, Pages 1052–1056
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us