Nonaqueous sol-gel synthesis and growth mechanism of single crystalline TiO2 nanorods with high photocatalytic activity

被引：36

作者：

Jia, Huimin ^{[1
]}

Zheng, Zhi ^{[1
]}

Zhao, Hongxiao ^{[1
]}

Zhang, Lizhi ^{[2
]}

Zou, Zhigang ^{[3
]}

机构：

[1] Xuchang Univ, Inst Surface Micro & Nano Mat, Xuchang 461000, Henan, Peoples R China

[2] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China

[3] Nanjing Univ, Dept Phys, ERERC, Nanjing 210093, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Nanostructures; Semiconductors; Sol-gel chemistry; Catalytic properties; VISIBLE-LIGHT IRRADIATION; LOW-TEMPERATURE SYNTHESIS; MESOPOROUS METAL-OXIDES; SULFORHODAMINE-B DYE; RHODAMINE-B; SIZED TIO2; THIN-FILMS; TITANIA; DEGRADATION; DISPERSIONS;

D O I：

10.1016/j.materresbull.2008.12.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

in this paper, we report on a nonaqueous synthesis of single crystalline anatase TiO2 nanorods by reaction between TiCl4 and benzyl alcohol at a low temperature of 80 degrees C. The resulting samples were characterized with X-ray diffraction, scanning electron microscopy, transmission electron microscopy, high resolution transmission electron microscopy, nitrogen adsorption, X-ray photoelectron spectrometry and UV-vis diffuse reflectance spectroscopy. We proposed that the TiO2 nanorods were formed through an oriented attachment mechanism. More importantly, these single crystalline anatase TiO2 nanorods exhibited significantly higher photocatalytic activities than commercial photocatalyst P25. This study provides an environmentally friendly and economic approach to produce highly active TiO2 photocatalyst. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1312 / 1316

页数：5

共 58 条

[1] Preparation of porous niobium oxides by soft-chemical process and their photocatalytic activity [J].

Abe, R ;

Shinohara, K ;

Tanaka, A ;

Hara, M ;

Kondo, JN ;

Domen, K .

CHEMISTRY OF MATERIALS, 1997, 9 (10) :2179-2184

[2] Highly efficient dye-sensitized solar cells with a titania thin-film electrode composed of a network structure of single-crystal-like TiO2 nanowires made by the "oriented attachment" mechanism [J].

Adachi, M ;

Murata, Y ;

Takao, J ;

Jiu, JT ;

Sakamoto, M ;

Wang, FM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (45) :14943-14949

[3] Biomineralization - Naturally aligned nanocrystals [J].

Alivisatos, AP .

SCIENCE, 2000, 289 (5480) :736-737

[4] PHOTOCATALYTIC HYDROGENATION OF CH3CCH WITH H2O ON SMALL-PARTICLE TIO2 - SIZE QUANTIZATION EFFECTS AND REACTION INTERMEDIATES [J].

ANPO, M ;

SHIMA, T ;

KODAMA, S ;

KUBOKAWA, Y .

JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (16) :4305-4310

[5] Solid-state dye-sensitized mesoporous TiO2 solar cells with high photon-to-electron conversion efficiencies [J].

Bach, U ;

Lupo, D ;

Comte, P ;

Moser, JE ;

Weissörtel, F ;

Salbeck, J ;

Spreitzer, H ;

Grätzel, M .

NATURE, 1998, 395 (6702) :583-585

[6] Non-hydrolytic sol-gel routes to silica [J].

Bourget, L ;

Corriu, RJP ;

Leclercq, D ;

Mutin, PH ;

Vioux, A .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1998, 242 (2-3) :81-91

[7] Formation and identification of intermediates visible-light-assisted photodegradation sulforhodamine-B dye in aqueous TiO2 dispersion [J].

Chen, CC ;

Zhao, W ;

Li, JY ;

Zhao, JC .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2002, 36 (16) :3604-3611

[8] Photosensitized degradation of dyes in polyoxometalate solutions versus TiO2 dispersions under visible-light irradiation:: Mechanistic implications [J].

Chen, CC ;

Zhao, W ;

Lei, PX ;

Zhao, JC ;

Serponer, N .

CHEMISTRY-A EUROPEAN JOURNAL, 2004, 10 (08) :1956-1965

[9] HYDROTHERMAL PREPARATION OF UNIFORM NANOSIZE RUTILE AND ANATASE PARTICLES [J].

CHENG, HM ;

MA, JM ;

ZHAO, ZG ;

QI, LM .

CHEMISTRY OF MATERIALS, 1995, 7 (04) :663-671

[10] THE ROLE OF METAL-ION DOPANTS IN QUANTUM-SIZED TIO2 - CORRELATION BETWEEN PHOTOREACTIVITY AND CHARGE-CARRIER RECOMBINATION DYNAMICS [J].

CHOI, WY ;

TERMIN, A ;

HOFFMANN, MR .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (51) :13669-13679

← 1 2 3 4 5 6 →