| C(60) aminofullerene immobilized on silica as a visible-light-activated photocatalyst. | |
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MedLine Citation:
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PMID: 21077614 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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A new strategy is described to immobilize photoactive C(60) aminofullerene on silica gel (3-(2-succinic anhydride)propyl functionalized silica), thus enabling facile separation of the photocatalyst for recycling and repeated use. An organic linker moiety containing an amide group was used to anchor C(60) aminofullerene to the functionalized silica support. The linker moiety prevents aqueous C(60) aggregation/agglomeration (shown by TEM images), resulting in a remarkable enhancement of photochemical (1)O(2) production under visible light irradiation. With no loss in efficacy of (1)O(2) production plus insignificant chemical modification of the aminoC(60)/silica photocatalyst after multiple cycling, the system offers a promising new visible-light-activated photocatalyst. Under visible-light irradiation, the aminoC(60)/silica photocatalyst is capable of effective and kinetically enhanced oxidation of Ranitidine and Cimetidine (pharmaceutical pollutants) and inactivation of MS-2 bacteriophage compared to aqueous solutions of the C(60) aminofullerene alone. Thus, this photocatalyst could enable water treatment in less developed areas by alleviating dependence on major infrastructure, including the need for electricity. |
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Authors:
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Jaesang Lee; Yuri Mackeyev; Min Cho; Lon J Wilson; Jae-Hong Kim; Pedro J J Alvarez |
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Publication Detail:
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Type: Journal Article Date: 2010-11-15 |
Journal Detail:
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Title: Environmental science & technology Volume: 44 ISSN: 1520-5851 ISO Abbreviation: Environ. Sci. Technol. Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-12-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0213155 Medline TA: Environ Sci Technol Country: United States |
Other Details:
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Languages: eng Pagination: 9488-95 Citation Subset: IM |
Affiliation:
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Department of Civil and Environmental Engineering, Rice University, Houston, Texas 77005, United States, Water Environment Center, Korea Institute of Science and Technology, Seoul 136-791, Korea, Department of Chemistry and the Smalley Institute for Nanoscale Science and Technology, Rice University, Houston, Texas 77005, United States, and Department of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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