Coating of Transparent Ti-containing Mesoporous Silica Thin Films on Quartz and Aluminum Alloy Substrates for Fabrication of Highly Hydrophilic Surfaces

被引：6

作者：

Horiuchi, Yu ^{[1
]}

Ura, Haruhisa ^{[1
]}

Yoo, Hye-jin ^{[2
]}

Kamegawa, Takashi ^{[1
]}

Mori, Kohsuke ^{[1
]}

Nishiyama, Norikazu ^{[3
]}

Yamashita, Hiromi ^{[1
]}

机构：

[1] Osaka Univ, Div Mat & Mfg Sci, Grad Sch Engn, Suita, Osaka 5650871, Japan

[2] POSCO Tech Res Labs, Surface Technol Res Grp, Gwangyang 545090, Jeonnam, South Korea

[3] Osaka Univ, Grad Sch Engn Sci, Dept Mat Engn Sci, Osaka 5608531, Japan

来源：

ISIJ INTERNATIONAL | 2010年 / 50卷 / 02期

关键词：

surface hydrophilicity; mesoporous silica thin film; isolated titanium oxide; aluminum alloy; SINGLE-SITE PHOTOCATALYSTS; SUPERHYDROPHOBIC SURFACE; ZEOLITE; OXIDE; POLYMER; PHOTOLUMINESCENCE; CONVERSION; PROPERTY;

D O I：

10.2355/isijinternational.50.255

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The fabrication of transparent Ti-containing mesoporous silica thin films (Ti-MSTFs) showing highly hydrophilic properties was achieved on quartz and AI alloy substrates by using a sol-gel/spin-coating technique. The presence of the mesoporous structure and titanium oxide species which exist in an isolated and tetrahedrally-coordinated state within the silica framework was observed by XRD and DRUV-vis measurements. The surface wettability on the Ti-MSTFs was also investigated based on the water contact angle measurement. Water contact angles on Ti-MSTFs on quartz and AI alloy substrates were extremely low values of 5 and 8 even under dark conditions, respectively, which were much smaller than those on original substrates. These observations indicate that highly hydrophilic surfaces were formed both on quartz and AI alloy substrates by coating with Ti-MSTFs. It can be interpreted that the capillary condensation due to the mesoporous structure and the presence of isolated titanium oxide species as adsorption sites of water contributed to the appearance of the high hydrophilicity. Furthermore, the irradiation of UV-light led to the decrease in water contact angles on Ti-MSTFs and it was found that Ti-MSTFs exhibited the photoinduced superhydrophilic properties.

引用

页码：255 / 258

页数：4

共 33 条

[1] From microporous to mesoporous molecular sieve materials and their use in catalysis [J].

Corma, A .

CHEMICAL REVIEWS, 1997, 97 (06) :2373-2419

[2] Photoinduced "stick-slip" on superhydrophilic semiconductor surfaces [J].

Denison, Kieth R. ;

Boxall, Colin .

LANGMUIR, 2007, 23 (08) :4358-4366

[3] Creation of a superhydrophobic surface from an amphiphilic polymer [J].

Feng, L ;

Song, YL ;

Zhai, J ;

Liu, BQ ;

Xu, J ;

Jiang, L ;

Zhu, DB .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2003, 42 (07) :800-802

[4] Preparation of superhydrophilic mesoporous silica thin films containing single-site photocatalyst (Ti, V, Cr, Mo, and W oxide moieties) [J].

Horiuchi, Yu ;

Mori, Kohsuke ;

Nishiyama, Norikazu ;

Yamashita, Hiromi .

CHEMISTRY LETTERS, 2008, 37 (07) :748-749

[5] Preparation of W-Containing Mesoporous Silica Thin Films and Their Surface Hydrophilic Properties [J].

Horiuchi, Yu ;

Kamegawa, Takashi ;

Mori, Kohsuke ;

Yamashita, Hiromi ;

Nishiyama, Norikazu .

E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY, 2009, 7 (141-144) :141-144

[6] New responsive property of poly(ε-caprolactone) as the thermal switch from superhydrophobic to superhydrophilic [J].

Hu, Shuxin ;

Cao, Xinyu ;

Song, Yanlin ;

Li, Chao ;

Xie, Ping ;

Jiang, Lei .

CHEMICAL COMMUNICATIONS, 2008, (17) :2025-2027

[7] Photocatalytic reduction of CO2 with H2O on Ti-β zeolite photocatalysts:: Effect of the hydrophobic and hydrophilic properties [J].

Ikeue, K ;

Yamashita, H ;

Anpo, M ;

Takewaki, T .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (35) :8350-8355

[8] Novel Biomimetic Surface Based on a Self-Organized Metal-Polymer Hybrid Structure [J].

Ishii, Daisuke ;

Yabu, Hiroshi ;

Shimomura, Masatsugu .

CHEMISTRY OF MATERIALS, 2009, 21 (09) :1799-1801

[9] Electrical and mechanical properties of surfactant-templated mesoporous silica thin films using Brij-76 surfactant [J].

Jung, SB ;

Han, CK ;

Park, HH .

APPLIED SURFACE SCIENCE, 2005, 244 (1-4) :47-50

[10] Fabrication of hydrophobic zeolites using triethoxyfluorosilane and their application as supports for TiO2 photocatalysts [J].

Kuwahara, Yasutaka ;

Kamegawa, Takashi ;

Mori, Kohsuke ;

Yamashita, Hiromi .

CHEMICAL COMMUNICATIONS, 2008, (39) :4783-4785

← 1 2 3 4 →