ZrO2-modified mesoporous nanocrystalline TiO2-xN x as efficient visible light photocatalysts - Details

author：

Wang, X. (Wang, X..) ^[1] | Yu, J.C. (Yu, J.C..) ^[2] | Chen, Y. (Chen, Y..) ^[3] | Wu, L. (Wu, L..) ^[4] | Fu, X. (Fu, X..) ^[5]

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Abstract：

Mesoporous　nanocrystalline　TiO2-xNx　and　TiO　2-xNx/ZrO2　visible-light　photocatalysts　have　been　prepared　by　a　solgel　method.　The　photocatalysts　were　characterized　by　XRD,　N2　adsorption-desorption,　TEM,　XPS,　UV/Vis,　and　IR　spectroscopy.　The　photocatalytic　activity　of　the　samples　was　evaluated　by　the　decomposition　of　ethylene　in　air　under　visible　light　(λ　>　450　nm)　illumination.　Results　revealed　that　nitrogen　was　doped　into　the　lattice　of　TiO2　by　the　thermal　treatment　of　NH3-adsorbed　TiO2　hydrous　gels,　converting　the　TiO2　into　a　visible-light　responsive　catalyst.　The　introduction　of　ZrO2　into　TiO2-xNx　considerably　inhibits　the　undesirable　crystal　growth　during　calcination.　Consequently,　the　ZrO2-modified　TiO2-xNx　displays　higher　porosity,　higher　specific　surface　area,　and　an　improved　thermal　stability　over　the　corresponding　unmodified　TiO2-xNx　samples.　©　2006　American　Chemical　Society.

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[ 1 ] [Wang, X.]Research Institute of Photocatalysis, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China
[ 2 ] [Yu, J.C.]Department of Chemistry, Environmental Science Programme, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
[ 3 ] [Chen, Y.]Research Institute of Photocatalysis, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China
[ 4 ] [Wu, L.]Research Institute of Photocatalysis, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China
[ 5 ] [Fu, X.]Research Institute of Photocatalysis, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China

Reprint 's Address：

[Wang, X.]Research Institute of Photocatalysis, College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China

Email：

xcwang@fzu.edu.cn

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Source ：

Environmental Science and Technology

ISSN： 0013-936X

Year： 2006

Issue： 7

Volume： 40

Page： 2369-2374

4 . 0 4

JCR@2006

1 0 . 9 0 0

JCR@2023

JCR Journal Grade：1

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30 Days PV： 1

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