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Catalytic Self-Decontaminating Materials

Naval Research Laboratory

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Publications:

PDF Document PublicationSelfDecontaminatingMaterials (383 KB)


Technology Marketing SummarySelf-decontaminating structures based on porphyrin-embedded, target imprinted, porous, organosilicate sorbents. The materials rapidly sequester targets as a result of the affinity of the sorbent structures. Catalysis proceeds upon stimulation of the porphyrin moieties through illumination or by an applied current. DescriptionThe Naval Research Laboratory (NRL) has developed self-decontaminating structures based on porphyrin-embedded, target imprinted, porous, organosilicate sorbents. The materials rapidly sequester targets as a result of the affinity of the sorbent structures. Catalysis proceeds upon stimulation of the porphyrin moieties through illumination or by an applied current. This potential for dual stimulation provides the opportunity for utilization of the materials in sunlit or low light envi-ronments. Catalysis in aqueous solution and under ambient conditions in the absence of liquid water has been demonstrated. Target selectivity can be controlled through selection of porphyrin and sorbent characteristics. The spectrophotometric characteristics of the porphyrin catalytic com-ponent also offer the potential for self-reporting materials. Attachment of the materials to fabrics and surfaces has been demonstrated using standard techniques. Materials with activity against organophosphate pesticides, aromatic solvents, and nitroenergetics have been described.Benefits

Rapid target sequestration

Stimulation of catalysis by electric current or illumina-tion

Tunable selectivity

Multiple possible material formats

Resistance to temperatures of up to 150°C

Excellent chemical stability

Reusable / Regenerable

Applications and Industries

Catalytic surface coatings and fabrics

Chemical protective cloth-ing

Self-decontaminating hard-ware

Catalytic membranes

Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
BIO07DevelopmentAvailable06/17/201106/17/2011

Contact NRL About This Technology

To: Cameron Childs<cameron.childs@nrl.navy.mil>