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Core-shell structured ZnO@Cu-Zn–Al layered double hydroxides with enhanced photocatalytic efficiency for CO2 reduction

Paper ID Volume ID Publish Year Pages File Format Full-Text
49336 46736 2016 5 PDF Available
Title
Core-shell structured ZnO@Cu-Zn–Al layered double hydroxides with enhanced photocatalytic efficiency for CO2 reduction
Abstract

•The core-shell structured ZnO@Cu-Zn–Al LDHs was fabricated by a facial deposition-precipitation method.•The special structures of ZnO@LDHs increase the surface areas and CO2 adsorbed capacity of catalysts effectively.•The perfect interfacial contact at the ZnO@LDHs interface promotes the separation of electron–hole pairs.

Hierarchical ZnO@Cu-Zn–Al layered double hydroxide (LDH) heterostructures were synthesized by a facial deposition-precipitation method, and it exhibited an enhanced photocatalytic efficiency for CO2 reduction. The physicochemical properties of as-prepared ZnO@LDHs were studied by SEM, XRD, BET, UV–vis and TEM technique. The improvement of photocatalytic efficiency is related to two factors. On the one hand, LDH species can increase the surface areas of catalysts effectively, which means that more adsorb active sites for CO2 can be provided; on the other hand, the heterojunction was formed on the ZnO/LDHs interface hindering the recombination of excited charge carriers.

Graphical abstractHierarchical ZnO@Cu-Zn–Al layered double hydroxide heterostructures exhibited an enhanced photocatalytic efficiency for CO2 reduction.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
ZnO; Layered double hydroxides; CO2 photoreduction; Methane
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Core-shell structured ZnO@Cu-Zn–Al layered double hydroxides with enhanced photocatalytic efficiency for CO2 reduction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 77, 5 March 2016, Pages 118–122
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
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us