Sunlight-Catalyzed Conversion of Cyclic Organics with Novel Mesoporous Organosilicas
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 f...
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| creator | Johnson-White, Brandy Zeinali, Mazyar Malanoski, Anthony P Dinderman, Michael A |
| description | 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.
Published in Catalysis Communications, v8 p1052-1056, 2007. |
| format | Report |
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Published in Catalysis Communications, v8 p1052-1056, 2007.</description><subject>ADSORPTION</subject><subject>CATALYSTS</subject><subject>CYCLES</subject><subject>ILLUMINATION</subject><subject>MESOPOROUS ORGANOSILICA</subject><subject>Organic Chemistry</subject><subject>ORGANIC MATERIALS</subject><subject>PHOTOCATALYSIS</subject><subject>PORPHYRINS</subject><subject>REPRINTS</subject><subject>RESTRAINT</subject><subject>SAMPLING</subject><subject>STABILITY</subject><subject>SUBSTRATES</subject><subject>SUNLIGHT</subject><subject>SURFACES</subject><subject>TNT</subject><subject>WATER</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>2006</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNrjZAgJLs3LyUzPKNF1TixJzKmsSk1RcM7PK0stKs7Mz1PIT1NwrkzOyUxW8C9KT8zLTC5WKM8syVDwyy9LzVHwTS3OL8gvyi8thkjnF2cClSYW8zCwpiXmFKfyQmluBhk31xBnD92Ukszk-OKSzLzUknhHF0dTQ3MDQwtjAtIAihI2UQ</recordid><startdate>20061017</startdate><enddate>20061017</enddate><creator>Johnson-White, Brandy</creator><creator>Zeinali, Mazyar</creator><creator>Malanoski, Anthony P</creator><creator>Dinderman, Michael A</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>20061017</creationdate><title>Sunlight-Catalyzed Conversion of Cyclic Organics with Novel Mesoporous Organosilicas</title><author>Johnson-White, Brandy ; Zeinali, Mazyar ; Malanoski, Anthony P ; Dinderman, Michael A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_ADA5170183</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>2006</creationdate><topic>ADSORPTION</topic><topic>CATALYSTS</topic><topic>CYCLES</topic><topic>ILLUMINATION</topic><topic>MESOPOROUS ORGANOSILICA</topic><topic>Organic Chemistry</topic><topic>ORGANIC MATERIALS</topic><topic>PHOTOCATALYSIS</topic><topic>PORPHYRINS</topic><topic>REPRINTS</topic><topic>RESTRAINT</topic><topic>SAMPLING</topic><topic>STABILITY</topic><topic>SUBSTRATES</topic><topic>SUNLIGHT</topic><topic>SURFACES</topic><topic>TNT</topic><topic>WATER</topic><toplevel>online_resources</toplevel><creatorcontrib>Johnson-White, Brandy</creatorcontrib><creatorcontrib>Zeinali, Mazyar</creatorcontrib><creatorcontrib>Malanoski, Anthony P</creatorcontrib><creatorcontrib>Dinderman, Michael A</creatorcontrib><creatorcontrib>NAVAL RESEARCH LAB WASHINGTON DC CENTER FOR BIOMOLECULAR SCIENCE AND ENGINEERING</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Johnson-White, Brandy</au><au>Zeinali, Mazyar</au><au>Malanoski, Anthony P</au><au>Dinderman, Michael A</au><aucorp>NAVAL RESEARCH LAB WASHINGTON DC CENTER FOR BIOMOLECULAR SCIENCE AND ENGINEERING</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>Sunlight-Catalyzed Conversion of Cyclic Organics with Novel Mesoporous Organosilicas</btitle><date>2006-10-17</date><risdate>2006</risdate><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.
Published in Catalysis Communications, v8 p1052-1056, 2007.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ADSORPTION CATALYSTS CYCLES ILLUMINATION MESOPOROUS ORGANOSILICA Organic Chemistry ORGANIC MATERIALS PHOTOCATALYSIS PORPHYRINS REPRINTS RESTRAINT SAMPLING STABILITY SUBSTRATES SUNLIGHT SURFACES TNT WATER |
| title | Sunlight-Catalyzed Conversion of Cyclic Organics with Novel Mesoporous Organosilicas |
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