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Influence of crystal facets and F-modification on the photocatalytic performance of anatase TiO2

Paper ID Volume ID Publish Year Pages File Format Full-Text
50594 46804 2012 5 PDF Available
Title
Influence of crystal facets and F-modification on the photocatalytic performance of anatase TiO2
Abstract

Pure and F-modified anatase TiO2 with dominant (001) and (101) facets were synthesized under hydrothermal conditions, followed by treating in HF and NaOH solution. (001) facet exhibited higher activity than (101) facet in the photodegradation of rhodamine B (RhB) but showed lower activity in the photodegradation of methyl orange (MO). Meanwhile, F-modification on (001) facet promoted the RhB and MO degradation but F-modification on (101) facet decreased the activity in the MO degradation. Based on structural characterizations and kinetic studies, the above results were discussed by considering different active species for oxidizing RhB and MO.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► F-modification affects differently the photocatalysis on (001) and (101) facets. ► F-modification inhibits the recombination between photoelectrons and holes. ► F-modification affects the yield of active species on (001) and (101) facets. ► Different active species dominates the photodegradation of different dyes.

Keywords
F-modification; Anatase TiO2 crystal with exposed (001) and (101) facets; Photocatalytic degradation; Organic dyes
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Influence of crystal facets and F-modification on the photocatalytic performance of anatase TiO2
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 24, 5 July 2012, Pages 20–24
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