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Controlled growth of CuO/Cu2O hollow microsphere composites as efficient visible-light-active photocatalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
38789 45791 2016 8 PDF Available
Title
Controlled growth of CuO/Cu2O hollow microsphere composites as efficient visible-light-active photocatalysts
Abstract

•CuO/Cu2O with tunable morphology and composition was hydrothermally synthesized.•CuO/Cu2O composite was found to be hollow microspheres morphology.•CuO/Cu2O composite displayed the highest visible light photocatalytic activity.•Enhanced mechanism was attributed to unique hollow structure and heterostructure.

Copper oxide composites with tunable composition and morphology were hydrothermally synthesized and used as highly efficient photocatalysts towards the degradation of dye pollutants under visible light irradiation. Effects of key synthesis reaction parameters, i.e., soft template (P123), pH of precursor solution, hydrothermal reaction temperature, the durations on the resultant copper oxide structures have been systematically investigated and a tentative mechanism was proposed for the formation of the copper oxide composites with different synthesis reaction parameters. Furthermore, the photocatalytic activities of resultant copper oxide materials towards the degradation of dye (methyl orange) demonstrated strong dependence on the compositional and morphological properties of the photocatalysts. CuO/Cu2O hollow microsphere composites exhibited the highest visible light photocatalytic activity that can be attributed to their unique hollow structure and CuO/Cu2O heterostructure. The demonstrated controlled growth of metal oxide composite hollow structure provides enlightenments in fabrication of highly efficient heterostructured photocatalysts for environmental remediation.

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Keywords
Copper oxide composite; Hollow structure; Visible light; Photocatalysis; Dye pollutant
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Controlled growth of CuO/Cu2O hollow microsphere composites as efficient visible-light-active photocatalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 521, 5 July 2016, Pages 34–41
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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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
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