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Rapid synthesis of photoactive hydrogenated TiO2 nanoplumes

Paper ID Volume ID Publish Year Pages File Format Full-Text
45162 46401 2016 7 PDF Available
Title
Rapid synthesis of photoactive hydrogenated TiO2 nanoplumes
Abstract

•Hydrogenated TiO2 nanoplumes were synthesized by rapid chemical etching in H2O2.•Nanoplumes have an energy gap of about 2.0 eV.•Nanoplumes show a significant photocatalytic and antibacterial activity under VIS light.•Defects induced by the etching play a critical role on the photocatalytic activity.

In this study we employed hydrogen peroxide etching of Ti films as a straightforward method to synthesize hydrogenated TiO2 nanoplumes. The material was extensively characterized, showing, among other special features, the inclusion of OH groups. These groups together with the generated structural defects and the nanostructuration are crucial for the high photocatalytic properties under ultraviolet (UV) and visible (VIS) light irradiation. In particular, nanoplumes show a reaction rate about 5 times the rate of TiO2 flat films. Furthermore, nanoplumes display a significant antibacterial activity under VIS light irradiation, compared with TiO2 films.

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Keywords
TiO2; Photocatalysis; Nanostructures; UV–VIS light
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Rapid synthesis of photoactive hydrogenated TiO2 nanoplumes
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 183, April 2016, Pages 328–334
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