| Fe(3) O(4) /WO(3) Hierarchical Core-Shell Structure: High-Performance and Recyclable Visible-Light Photocatalysis. | |
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MedLine Citation:
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PMID: 21432916 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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A facile solvothermal epitaxial growth combined with a mild oxidation route has been developed for the fabrication of a magnetically recyclable Fe(3) O(4) /WO(3) core-shell visible-light photocatalyst. In this core-shell structured photocatalyst, visible-light-active WO(3) nanoplates (the shells) with high surface area are used as a medium to harvest absorbed photons and convert them to photogenerated charges, while conductive Fe(3) O(4) microspheres (the cores) are used as charge collectors to transport the photogenerated charges. This is a new role for magnetite. The Fe(3) O(4) /WO(3) core-shell structured photocatalysts possess large surface-exposure area, high visible-light-absorption efficiency, stable recyclability, and efficient charge-separation properties, the combination of which has rarely been reported in other visible-light-active photocatalysts. Photoelectrochemical investigations verify that the core-shell structured Fe(3) O(4) /WO(3) has a more effective photoconversion capability than pure WO(3) or Fe(3) O(4) . At the same time, the visible-light photocatalytic ability of the Fe(3) O(4) /WO(3) photocatalyst has significantly enhanced activity in the photodegradation of organic-dye materials. The results presented herein provide new insights into core-shell materials as high-performance visible-light photocatalysts and their potential use in environmental protection. |
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Authors:
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Guangcheng Xi; Bing Yue; Junyu Cao; Jinhua Ye |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-3-22 |
Journal Detail:
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Title: Chemistry (Weinheim an der Bergstrasse, Germany) Volume: - ISSN: 1521-3765 ISO Abbreviation: - Publication Date: 2011 Mar |
Date Detail:
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Created Date: 2011-3-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9513783 Medline TA: Chemistry Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. |
Affiliation:
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International Center for Materials Nanoarchitectonic and Photocatalytic Materials Center, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047 (Japan). |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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