Preparation and performances of mesoporous TiO2 film photocatalyst supported on stainless steel

被引：169

作者：

Zhang, L ^{[1
]}

Zhu, YF ^{[1
]}

He, Y ^{[1
]}

Li, W ^{[1
]}

Sun, HB ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Chem, Beijing 100084, Peoples R China

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2003年 / 40卷 / 04期

基金：

中国国家自然科学基金;

关键词：

TiO2; film; mesoporous; photocatalyst;

D O I：

10.1016/S0926-3373(02)00154-6

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：

Mesoporous TiO2 film photocatalysts supported on stainless steel substrates were prepared using the sol-gel method with Ti(OC4H9)(4) as a precursor and poly ethylene glycol (PEG) as a structure-directing agent. Mesoporous TiO2 film with a pore diameter of about 15 nm was obtained with the addition of PEG (molecular weight =400). The pore diameter of TiO(2)film was varied with molecular weight of PEG additive. The structure-directing process was also discussed. Mesoscopically ordered inorganic/polymer composites were believed to form during the process. Compared to conventional TiO2 film photocatalyst, the mesoporous TiO2 film showed a good performance for the photo degradation of rhodamine B (RB) solution irradiated with UV light of 365 nm. The photo degradation constant of rhodamine B for mesoporous TiO2 film photocatalyst can arrive at 22 times of that for conventional TiO2 film photocatalyst. Also an excellent performance for the degradation of gaseous formaldehyde with mesoporous film photocatalyst was obtained. The photo degradation rate of gaseous formaldehyde for mesoporous TiO2 film photocatalyst can arrive at six times of that for conventional TiO2 film photocatalyst. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：287 / 292

页数：6

共 23 条

[1] SYNTHESIS OF HEXAGONALLY PACKED MESOPOROUS TIO2 BY A MODIFIED SOL-GEL METHOD
ANTONELLI, DM
YING, JY
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1995, 34 (18): : 2014 - 2017
[2] Visible-light photocatalysis in nitrogen-doped titanium oxides
Asahi, R
Morikawa, T
Ohwaki, T
Aoki, K
Taga, Y
[J]. SCIENCE, 2001, 293 (5528) : 269 - 271
[3] Bailey F. E., 1990, ALKYLENE OXIDES THEI, DOI 10.1201/9781003066569
[4] Applied studies on immobilized titanium dioxide films as catalysts for the photoelectrochemical detoxification of water
Butterfield, IM
Christensen, PA
Hamnett, A
Shaw, KE
Walker, GM
Walker, SA
Howarth, CR
[J]. JOURNAL OF APPLIED ELECTROCHEMISTRY, 1997, 27 (04) : 385 - 395
[5] Photochemical elimination of phenols and cod in industrial wastewaters
Chen, J
Rulkens, WH
Bruning, H
[J]. WATER SCIENCE AND TECHNOLOGY, 1997, 35 (04) : 231 - 238
[6] THE GAS-PHASE PHOTOCATALYTIC MINERALIZATION OF BENZENE ON POROUS TITANIA-BASED CATALYSTS
FU, XZ
ZELTNER, WA
ANDERSON, MA
[J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 1995, 6 (03) : 209 - 224
[7] ENVIRONMENTAL APPLICATIONS OF SEMICONDUCTOR PHOTOCATALYSIS
HOFFMANN, MR
MARTIN, ST
CHOI, WY
BAHNEMANN, DW
[J]. CHEMICAL REVIEWS, 1995, 95 (01) : 69 - 96
[8] Macroporous morphology of the titania films prepared by a sol-gel dip-coating method from the system containing poly(ethylene glycol). IV. General principle of morphology formation and effect of heat treatment
Kajihara, K
Yao, T
[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, 2000, 17 (02) : 173 - 184
[9] Li Y, 1998, CHEM J CHINESE U, V19, P1457
[10] KINETICS OF PHOTOCATALYTIC OXIDATION OF ORGANIC SOLUTES OVER TITANIUM-DIOXIDE
MATTHEWS, RW
[J]. JOURNAL OF CATALYSIS, 1988, 111 (02) : 264 - 272

← 1 2 3 →