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Effect of different base structures on the performance of the hierarchical TiO2 photocatalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
54288 47004 2014 6 PDF Available
Title
Effect of different base structures on the performance of the hierarchical TiO2 photocatalysts
Abstract

•Hierarchical TiO2 photocatalysts with different dimensional base structures were synthesized by a simple and economical way.•The base structures of the hierarchical TiO2 photocatalysts had significant influence on the photocatalytic reactivities.•The hierarchical TiO2 photocatalysts possess both of high activity and performance stability than that of P25.

This work studied the effect of base structure on the photocatalytic activity of hierarchical TiO2 photocatalysts. The hierarchical TiO2 photocatalysts assembled by different dimensional base structures were successfully synthesized via a facile and controllable way. The morphology and structure of the hierarchical TiO2 photocatalysts were thoroughly analyzed by various technologies. The hierarchical TiO2 photocatalysts prepared in this work have one dimensional base structure, two dimensional base structures, and three dimensional base structures, respectively. The photocatalytic activities of hierarchical TiO2 photocatalysts with different dimensional base structures were evaluated by photocatalytic degradation of methylene blue. The results indicated that the order of the specific activity is as follows: hierarchical TiO2 with one dimensional base structure < hierarchical TiO2 with two dimensional base structures < hierarchical TiO2 with three dimensional base structures. It illustrated that the base structure of the hierarchical TiO2 photocatalysts has significant influence on their photocatalytic reactivities because of their different dimensions and size. In addition, the hierarchical TiO2 photocatalysts exhibited enhanced photocatalytic activities and stabilities than that of P25.

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Keywords
TiO2; Hierarchical structure; Base structure; Photocatalytic activity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 225, 15 April 2014, Pages 74–79
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