Sol-Gel to Prepare Nitrogen Doped TiO2 Nanocrystals with Exposed {001} Facets and High Visible-Light Photocatalytic Performance

A series of N-doped TiO2 nanocrystals with exposed {001} facets was prepared successfully by sol-gel method for the first time. The physicochemical properties of these resultant photocatalysts were characterized by XRD, TEM, XPS, and DRS, and their photocatalytic performances were evaluated by photo...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of photoenergy Vol. 2014; no. 2014; pp. 1 - 9
Main Authors Cui, Hao-Jie, Chen, Jian-Wei, Duan, Rui-Xi, Shi, Jian-Wen, Ai, Hui-Ying, Fu, Ming-Lai
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Publishing Corporation 01.01.2014
Hindawi Limited
Subjects
Crystallinity
Exposure
Light
Nanocrystals
Nitrogen
Photocatalysis
Photocatalysts
Pollutants
Sol gel process
Solar energy
Titanium dioxide
X-ray photoelectron spectroscopy
Online AccessGet full text

Cover

More Information
Summary:A series of N-doped TiO2 nanocrystals with exposed {001} facets was prepared successfully by sol-gel method for the first time. The physicochemical properties of these resultant photocatalysts were characterized by XRD, TEM, XPS, and DRS, and their photocatalytic performances were evaluated by photocatalytic decoloration of methylene blue solution under visible light ( λ > 420 nm) irradiation. The results showed that the N-doped TiO2 nanocrystals with exposed {001} facets showed higher photocatalytic activity than P25. The enhanced photocatalytic performance can be attributed to synergistic effects of several factors, such as good crystallinity, better light response characteristic, and high reactivity of {001} facets.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1110-662X
1687-529X
DOI:10.1155/2014/724910