Tuning the band-gap energy of TiO2-xCx nanoparticle for high performance photo-catalyst

被引：46

作者：

Yun, Hyeong Jin ^{[1
]}

Lee, Hyunjoo ^{[2
]}

Joo, Ji Bong ^{[1
]}

Kim, Nam Dong ^{[1
]}

Yi, Jongheop ^{[1
]}

机构：

[1] Seoul Natl Univ, World Class Univ WCU, Program Chem Convergence Energy & Environm C2E2, Sch Chem & Biol Engn,Inst Chem Proc, Seoul 151742, South Korea

[2] Yonsei Univ, Dept Chem & Biomol Engn, Seoul 120749, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 06期

基金：

新加坡国家研究基金会;

关键词：

TiO2; Visible light; Photo-catalyst; Carbon-doping; Tuning band-gap energy; Nanoparticle; DOPED TIO2; FACILE PREPARATION; TITANIUM-DIOXIDE; NANORODS; PHOTOCATALYSIS;

D O I：

10.1016/j.elecom.2010.03.029

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

We describe a method tuning the band-gap energy (E-g) of visible light sensitive TiO2-xCx nanoparticle. E-g tends to become smaller with the increase in the amount of carbon dopant in TiO2-xCx nanoparticle due to the increase in excess electrons. Photo-catalytic oxidative activity, however, did not depend on only the value of E-g, but also the energy level of valence band. TiO1.96C0.04 nanoparticle having E-g of 2.6 eV showed outstanding performance in oxidative decomposition of phenol under the irradiation of visible light. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：769 / 772

页数：4

共 20 条

[1] Photoelectrochemical Study of the Band Structure of Zn2SnO4 Prepared by the Hydrothermal Method [J].

Alpuche-Aviles, Mario A. ;

Wu, Yiying .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (09) :3216-3224

[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] Visible-light photoactivity of nitrogen-doped TiO2:: Photo-oxidation of HCO2H to CO2 and H2O [J].

Balcerski, William ;

Ryu, Su Young ;

Hoffmann, Michael R. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (42) :15357-15362

[4]

BARD AJ, 2001, ELECTROCHEMICAL METH, pCH18

[5] Titanium dioxide nanomaterials: Synthesis, properties, modifications, and applications [J].

Chen, Xiaobo ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2007, 107 (07) :2891-2959

[6] Theory of carbon doping of titanium dioxide [J].

Di Valentin, C ;

Pacchioni, G ;

Selloni, A .

CHEMISTRY OF MATERIALS, 2005, 17 (26) :6656-6665

[7] SEMICONDUCTOR ELECTRODES .2. ELECTROCHEMISTRY AT N-TYPE TIO2 ELECTRODES IN ACETONITRILE SOLUTIONS [J].

FRANK, SN ;

BARD, AJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1975, 97 (26) :7427-7433

[8] Facile preparation of micro-mesoporous carbon-doped TiO2 photocatalysts with anatase crystalline walls under template-free condition [J].

Gu, De-en ;

Lu, Yun ;

Yang, Bang-chao ;

Hu, Yong-da .

CHEMICAL COMMUNICATIONS, 2008, (21) :2453-2455

[9] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS [J].

HOFFMANN, MR ;

MARTIN, ST ;

CHOI, WY ;

BAHNEMANN, DW .

CHEMICAL REVIEWS, 1995, 95 (01) :69-96

[10] Large-scale synthesis of TiO2 nanorods via nonhydrolytic sol-gel ester elimination reaction and their application to photocatalytic inactivation of E. coli [J].

Joo, J ;

Kwon, SG ;

Yu, T ;

Cho, M ;

Lee, J ;

Yoon, J ;

Hyeon, T .

JOURNAL OF PHYSICAL CHEMISTRY B, 2005, 109 (32) :15297-15302

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