Study on the photocatalytic activity of TiN/TiO2 nanoparticle formed by ball milling

被引：26

作者：

Chen, Shifu ^{[1
]}

Zhang, Sujuan ^{[1
]}

Zhao, Wei ^{[1
]}

Liu, Wei ^{[1
]}

机构：

[1] Huaibei Coal Normal Coll, Dept Chem, Huaibei 235000, Anhui, Peoples R China

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2009年 / 11卷 / 04期

关键词：

Photocatalytic activity; TiN/TiO2; Nanoparticle; Ball milling; Characterization; DEGRADATION; OXIDES;

D O I：

10.1007/s11051-008-9475-z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

TiN/TiO2 nanoparticle photocatalyst was prepared by ball milling of TiO2 in H2O solution doped with TiN. The photocatalyst was characterized by UV-Vis diffuse reflection spectroscopy, X-ray powder diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). Based on the results of the characterization, the mechanism of the increase in photocatalytic activity was investigated. The results show that when the amount of doped TiN is 0.15 wt%, the photocatalytic activity of the TiN/TiO2 is at its peak. Compared with TiO2, the photoabsorption wavelength range of the TiN/TiO2 photocatalyst red-shifts about 30 nm, and the photoabsorption intensity increases as well. The photocatalytic activities of the photocatalyst are higher than that of TiO2 under UV and visible light irradiation. The increase of surface Ti3+ reactive center and the extension of the photoabsorption wavelength are the main factors for the increase in the photocatalytic activity of the TiN/TiO2. Doped TiN neither changes the TiO2 crystal phase nor creates new crystal phase by ball milling.

引用

页码：931 / 938

页数：8

共 22 条

[1] Design and development of titanium oxide photocatalysts operating under visible and UV light irradiation.: The applications of metal ion-implantation techniques to semiconducting TiO2 and Ti/zeolite catalysts [J].

Anpo, M ;

Takeuchi, M ;

Ikeue, K ;

Dohshi, S .

CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2002, 6 (05) :381-388

[2] Visible-light photocatalysis in nitrogen-doped titanium oxides [J].

Asahi, R ;

Morikawa, T ;

Ohwaki, T ;

Aoki, K ;

Taga, Y .

SCIENCE, 2001, 293 (5528) :269-271

[3] Translucent thin film Fe2O3 photoanodes for efficient water splitting by sunlight:: Nanostructure-directing effect of Si-doping [J].

Cesar, I ;

Kay, A ;

Martinez, JAG ;

Grätzel, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (14) :4582-4583

[4]

Chen S., 1999, PHOTOGRAPHIC SCI PHO, V17, P85

[5]

Chen SF, 1998, J CHEM TECHNOL BIOT, V73, P264

[6] The preparation of coupled WO3/TiO2 photocatalyst by ball milling [J].

Chen, SF ;

Chen, L ;

Gao, S ;

Cao, GY .

POWDER TECHNOLOGY, 2005, 160 (03) :198-202

[7] The preparation of nitrogen-doped photocatalyst TiO2-xNx by ball milling [J].

Chen, SF ;

Chen, L ;

Gao, S ;

Cao, GY .

CHEMICAL PHYSICS LETTERS, 2005, 413 (4-6) :404-409

[8] Photoelectron spectroscopic investigation of nitrogen-doped titania nanoparticles [J].

Chen, XB ;

Burda, C .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (40) :15446-15449

[9] Preparation of a novel TiO2-based p-n junction nanotube photocatalyst [J].

Chen, YS ;

Crittenden, JC ;

Hackney, S ;

Sutter, L ;

Hand, DW .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2005, 39 (05) :1201-1208

[10] Ag/AgBr/TiO2 visible light photocatalyst for destruction of azodyes and bacteria [J].

Hu, C ;

Lan, YQ ;

Qu, JH ;

Hu, XX ;

Wang, AM .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (09) :4066-4072

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