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Light-induced self-cleaning properties of ZnO nanowires grown at low temperatures

Paper ID Volume ID Publish Year Pages File Format Full-Text
41263 45883 2012 8 PDF Available
Title
Light-induced self-cleaning properties of ZnO nanowires grown at low temperatures
Abstract

Highly c-axis oriented ZnO nanowires’ arrays were grown on glass substrates using an aqueous solution approach, in which the growth temperature does not exceed 95 °C in any step of the synthesis. Both their photocatalytic and wetting properties were studied upon ultraviolet (UV) light irradiation. It is revealed that ZnO nanowires’ arrays show advanced photocatalytic activity, along with a remarkable reversible photo-induced transition from hydrophobic to super-hydrophilic under UV light exposure, reaching a nearly zero contact angle in short time. The capability to control the morphological characteristics of ZnO nanowires via the deposition of an amorphous seed layer is discussed, which can be significant for self-cleaning applications.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (281 K)Download as PowerPoint slideHighlights► Highly c-axis oriented ZnO nanowires were grown on glass using aqueous solutions. ► The growth temperature does not exceed 95 °C in any step of the synthesis. ► The photocatalytic and wetting properties were studied upon UV irradiation. ► ZnO nanowires show superior photocatalytic activity. ► We report a reversible photo-induced transition from hydrophobic to super-hydrophilic.

Keywords
Aqueous solution growth; Seed layer; ZnO; Nanowires; Photocatalysis; Stearic acid; Wettability
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 411–412, 16 January 2012, Pages 7–14
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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
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Any Questions? feel free to contact us