fulltext.study @t Gmail

Fabrication of TiO2 nano-branched arrays/Cu2S composite structure and its photoelectric performance

Paper ID Volume ID Publish Year Pages File Format Full-Text
45036 46395 2014 9 PDF Available
Title
Fabrication of TiO2 nano-branched arrays/Cu2S composite structure and its photoelectric performance
Abstract

•TiO2 NBs/Cu2S composite structure prepared via hydrothermal and SILAR method.•The products can be used for efficient photoelectrochemical water splitting devices.•High performance was obtained due to the absorption spectra and band structure.

Hierarchical nanostructured TiO2 is known to be ideal materials for photoelectrochemical water splitting because of its excellent light harvesting efficiency, efficient charge separation and transport properties. In the present work, rutile TiO2 nano-branched arrays (NBs) were grown directly on transparent conductive glass (FTO) using a simple two-step hydrothermal method. TiO2 NBs/Cu2S composite structure was subsequently synthesized through successive ionic layer adsorption and reaction (SILAR). Detailed growth mechanisms for TiO2 NBs nanostructure and TiO2 NBs/Cu2S composite structure were discussed. The optical property of composite structures was characterized, and enhanced absorption spectrum was discovered. A much higher hydrogen generation efficiency of 13.15% at 0.70 V versus Ag/AgCl electrode was achieved for this TiO2 NBs/Cu2S composite structure. This is attributed to the improved light absorption and appropriate energy gap structure, which is over 40% higher than that of TiO2 NWs/Cu2S composite structure.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
TiO2; Branched arrays; Cu2S; Composite structure; Water splitting
First Page Preview
Fabrication of TiO2 nano-branched arrays/Cu2S composite structure and its photoelectric performance
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
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volumes 154–155, July–August 2014, Pages 27–35
Authors
, , , , , , , , , ,
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