Solvothermal Synthesis of TiO2 Nanocrystal Colloids from Peroxotitanate Complex Solution and Their Photocatalytic Activities

被引：75

作者：

Liao, Jianhua ^{[1
]}

Shi, Liyi ^{[1
]}

Yuan, Shuai ^{[1
]}

Zhao, Yin ^{[1
]}

Fang, Jianhui ^{[1
]}

机构：

[1] Shanghai Univ, Res Ctr Nanosci & Nanotechnol, Shanghai 200444, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 43期

关键词：

MODIFIED ANATASE SOL; TITANIUM(IV) OXIDE; CATALYTIC-REDUCTION; SHAPE CONTROL; NANOPARTICLES; TITANIA; FILMS; ACID; PHENOL; SIZE;

D O I：

10.1021/jp905720g

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

TiO2 nanocrystal colloids with different shapes and sizes have been prepared from a peroxotitanate complex solution starting from titanium(IV) sulfate and hydrogen peroxide (H2O2) in water/alcohol media by a solvothermal process. The TiO2 nanocrystals were characterized by transmission electron microscopy, high-resolution transmission electron microscopy, X-ray diffraction, FT-IR spectroscopy, zeta potential, and nitrogen adsorption. The TiO2 nanocrystal colloids prepared by a solvothermal process at 120 degrees C show a highly crystallized anatase phase. The particle sizes decreased with the increase of the alcohol/water ratio. The shapes of the particles have been controlled from the "rodlike" in pure water solvent to a "rectangular" shape in pure ethanol solvent. The photocatalytic activities of TiO2 nanocrystals were evaluated by the degradation of phenol. The photocatalytic activity of the anatase nanocrystal was closely related to the particle diameter. In addition, the possible growth mechanism of this anatase was illustrated.

引用

页码：18778 / 18783

页数：6

共 70 条

[1]

Barbe CJ, 1997, J AM CERAM SOC, V80, P3157, DOI 10.1111/j.1151-2916.1997.tb03245.x

[2] Photosensitization of nanocrystalline ZnO films by bis(2,2'-bipyridine)(2,2'-bipyridine-4,4'-dicarboxylic acid)ruthenium(II) [J].

Bedja, I ;

Kamat, PV ;

Hua, X ;

Lappin, AG ;

Hotchandani, S .

LANGMUIR, 1997, 13 (08) :2398-2403

[3] Self-organization of TiO2 nanoparticles in thin films [J].

Burnside, SD ;

Shklover, V ;

Barbe, C ;

Comte, P ;

Arendse, F ;

Brooks, K ;

Gratzel, M .

CHEMISTRY OF MATERIALS, 1998, 10 (09) :2419-2425

[4]

BYRAPPA K, 2001, HDB HYDROTHERMAL TEC, P170

[5] Preparation of size-controlled TiO2 nanoparticles and derivation of optically transparent photocatalytic films [J].

Chae, SY ;

Park, MK ;

Lee, SK ;

Kim, TY ;

Kim, SK ;

Lee, WI .

CHEMISTRY OF MATERIALS, 2003, 15 (17) :3326-3331

[6]

Chemseddine A, 1999, EUR J INORG CHEM, P235, DOI 10.1002/(SICI)1099-0682(19990202)1999:2<235::AID-EJIC235>3.0.CO

[7]

2-N

[8] Photocatalytic kinetics of phenol and its derivatives over UV irradiated TiO2 [J].

Chen, DW ;

Ray, AK .

APPLIED CATALYSIS B-ENVIRONMENTAL, 1999, 23 (2-3) :143-157

[9] Preparation, characterization, and growth mechanism of a novel aligned nanosquare anatase in large quantities in the presence of TMAOH [J].

Chen, Yunxia ;

He, Xin ;

Zhao, Xiujian ;

Yuan, Qihua ;

Gu, Xingyong .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2007, 310 (01) :171-177

[10] Influence of operating parameters on photocatalytic degradation of phenol in UV/TiO2 process [J].

Chiou, Chwei-Huann ;

Wu, Cheng-Ying ;

Juang, Ruey-Shin .

CHEMICAL ENGINEERING JOURNAL, 2008, 139 (02) :322-329

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