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Significant photocatalytic enhancement in methylene blue degradation of TiO2 photocatalysts via graphene-like carbon in situ hybridization

Paper ID Volume ID Publish Year Pages File Format Full-Text
47157 46462 2010 5 PDF Available
Title
Significant photocatalytic enhancement in methylene blue degradation of TiO2 photocatalysts via graphene-like carbon in situ hybridization
Abstract

Graphene-like carbon/TiO2 photocatalysts were prepared via a facile in situ graphitization approach. The introduction of graphene-like carbon to TiO2 effectively enhanced its photocatalytic activity. A graphene-like carbon/TiO2 photocatalyst with a monolayer carbon shell (0.468 nm) showed the highest photocatalytic activity which is about 2.5 times as high as that of pristine TiO2 (P25) under UV light irradiation. The mechanism of the enhanced photocatalytic activity is based on the synergetic effect between graphene-like carbon and TiO2. The synergetic effect caused a rapid photoinduced charge separation and decreased the possibility of recombination of electron–hole pairs, which increased the number of holes participated in the photooxidation process and enhanced the photocatalytic activity.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights▶ Graphene-like carbon/TiO2 was prepared via a facile in situ graphitization approach. ▶ Highest photocatalytic activity is about 2.5 times as high as that of TiO2 (P25). ▶ The modification of graphene-like carbon to TiO2 caused a rapid charge separation.

Keywords
Photocatalysis; Graphene-like carbon; TiO2; Surface hybridization
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Significant photocatalytic enhancement in methylene blue degradation of TiO2 photocatalysts via graphene-like carbon in situ hybridization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 100, Issues 1–2, 11 October 2010, Pages 179–183
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