Thermostability of nano-TiO2 and its photocatalytic activity

被引：51

作者：

Tseng, Yao-Hsuan ^{[1
]}

Lin, Hong-Ying

Kuo, Chien-Sheng

Li, Yuan-Yao

Huang, Chin-Pao

机构：

[1] Ind Technol Res Inst, Energy & Environm Res Labs, Hsinchu 301, Taiwan

[2] Univ Delaware, Dept Civil & Environm Engn, Newark, DE 19716 USA

[3] Natl Chung Cheng Univ, Dept Chem Engn, Chiayi 621, Taiwan

来源：

REACTION KINETICS AND CATALYSIS LETTERS | 2006年 / 89卷 / 01期

关键词：

photocatalyst; thermostability; TiO2; methylene blue;

D O I：

10.1007/s11144-006-0087-2

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：

Thermostability of P25 nanoparticle was carried out by ascending thermal annealing. The growth of particle was observed and the activation energy of phase transition was calculated. The photocatalytic reactivity was measured in terms of the degradation rate of methylene blue. Results indicated that the specific surface area and the aggregation of TiO2 are much important factors than the crystal phase on the photo-decoloration reaction.

引用

页码：63 / 69

页数：7

共 8 条

[1] ELECTROCHEMICAL PHOTOLYSIS OF WATER AT A SEMICONDUCTOR ELECTRODE [J].

FUJISHIMA, A ;

HONDA, K .

NATURE, 1972, 238 (5358) :37-+

[2]

Fujishima A., 2000, J PHOTOCH PHOTOBIO C, V1, P1, DOI DOI 10.1016/S1389-5567(00)00002-2

[3] Photocatalytic degradation pathway of methylene blue in water [J].

Houas, A ;

Lachheb, H ;

Ksibi, M ;

Elaloui, E ;

Guillard, C ;

Herrmann, JM .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 31 (02) :145-157

[4] Size effects in gas-phase photo-oxidation of trichloroethylene using nanometer-sized TiO2 catalysts [J].

Maira, AJ ;

Yeung, KL ;

Lee, CY ;

Yue, PL ;

Chan, CK .

JOURNAL OF CATALYSIS, 2000, 192 (01) :185-196

[5] Preparation of S-doped TiO2 photocatalysts and their photocatalytic activities under visible light [J].

Ohno, T ;

Akiyoshi, M ;

Umebayashi, T ;

Asai, K ;

Mitsui, T ;

Matsumura, M .

APPLIED CATALYSIS A-GENERAL, 2004, 265 (01) :115-121

[6] The effect of calcination on the microstructural characteristics and photoreactivity of Degussa P-25 TiO2 [J].

Porter, JF ;

Li, YG ;

Chan, CK .

JOURNAL OF MATERIALS SCIENCE, 1999, 34 (07) :1523-1531

[7] KINETICS OF ANATASE-RUTILE TRANSFORMATION [J].

SHANNON, RD ;

PASK, JA .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1965, 48 (08) :391-&

[8] High surface area anatase titania nanoparticles prepared by MOCVD [J].

Sun, YJ ;

Li, AZ ;

Qi, M ;

Zhang, LY ;

Yao, X .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2001, 86 (03) :185-188

← 1 →