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Synthesis, electronic property and photocatalytic applications of mesoporous cobalt-doped ZnS and ZnO nanoplates

Paper ID Volume ID Publish Year Pages File Format Full-Text
40962 45872 2012 8 PDF Available
Title
Synthesis, electronic property and photocatalytic applications of mesoporous cobalt-doped ZnS and ZnO nanoplates
Abstract

Mesoporous cobalt-doped ZnS and ZnO nanoplates were fabricated by calcination of a Zn0.95Co0.05S(en)0.5 complex (en = ethylenediamine), which was hydrothermally synthesized using ethylenediamine as a single solvent and chelating agent. When the as-prepared Zn0.95Co0.05S(en)0.5 complex was calcined, mesoporous nanoplates of wurtzite Zn0.95Co0.05S were formed, which then transformed to Zn0.95Co0.05O platelets upon further oxidation. Photocatalytic performance of the as-prepared materials was investigated for decomposition of the azo dye (acid red 14) and photoelectrochemical current generation in aqueous Na2S/Na2SO3 solution as probe reactions. The Zn0.95Co0.05S calcined at 500 °C exhibited the highest photocatalytic activity under UV irradiation and also showed the photocatalytic performance under visible light irradiation.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (185 K)Download as PowerPoint slideHighlights► Zn0.95Co0.05S(en)0.5 complex was prepared by hydrothermal synthesis. ► Zn0.95Co0.05S and Zn0.95Co0.05O nanoplates were produced by a topotactic solid transformation. ► Mesoporous Zn0.95Co0.05S nanoplates showed good photosensitivity and stability under visible light irradiation. ► The photocatalytic activity for the degradation of AR14 originates from the band-gap excited photons.

Keywords
Mesoporous nanoplate; Co-doped ZnS; Photocatalysis; Visible light; Photocurrent
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Synthesis, electronic property and photocatalytic applications of mesoporous cobalt-doped ZnS and ZnO nanoplates
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 427–428, 15 June 2012, Pages 106–113
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
Online Support
Any Questions? feel free to contact us