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Mesoporous TiO2 nanoparticles terminated with carbonate-like groups: Amorphous/crystalline structure and visible-light photocatalytic activity

Paper ID Volume ID Publish Year Pages File Format Full-Text
53322 46962 2016 7 PDF Available
Title
Mesoporous TiO2 nanoparticles terminated with carbonate-like groups: Amorphous/crystalline structure and visible-light photocatalytic activity
Abstract

•Mesoporous anatase TiO2 nanoparticles modified with carbonate-like groups.•Amorphous layer covering on the surface of TiO2 lattice.•Effective charge transfer and radical production ability.•High visible-light photocatalytic activity.

Mesoporous anatase TiO2 nanoparticles terminated carbonate-like groups were synthesized by a facile non-hydrolytic reaction combining a post heat-treatment. X-ray photoelectron and Fourier transform infrared analysis indicate carbonate-like groups cover on the surface of TiO2 lattice and interacted with the Ti-O bonds, resulting in the formation of amorphous layer on the surface of TiO2 nanoparticles. The mesoporous anatase TiO2 with amorphous layer shows visible-light absorption (up to 800 nm) and high photocatalytic activity on the degradation of Rhodamine B and salicylic acid. It is found that the large surface area, pore structure, and effective separation of photoinduced electron-hole pairs are responsible for the high photocatalytic activity of mesoporous anatase TiO2 terminated with carbonate-like groups.

Graphical abstractHigh visible-light photocatalytic activity is obtained mesoporous TiO2 nanoparticles modified with carbonate-like groups, facilitated by the production of hydroxyl radicals and the separation of electrons and holes.Figure optionsDownload full-size imageDownload high-quality image (231 K)Download as PowerPoint slide

Keywords
Mesoporous; TiO2; Carbonate-like groups; Nonhydrolytic; Photocatalysis
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Mesoporous TiO2 nanoparticles terminated with carbonate-like groups: Amorphous/crystalline structure and visible-light photocatalytic activity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 264, 15 April 2016, Pages 243–249
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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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