REVERSIBLE PHOTOCONTROL OF WOOD-SURFACE WETTABILITY BETWEEN SUPERHYDROPHILICITY AND SUPERHYDROPHOBICITY BASED ON A TIO2 FILM

被引：27

作者：

Gao, Likun ^{[1
]}

Lu, Yun ^{[2
]}

Cao, Jun ^{[3
]}

Li, Jian ^{[1
]}

Sun, Qingfeng ^{[1
,3
]}

机构：

[1] Northeast Forestry Univ, Mat Sci & Engn Coll, Harbin 150040, Peoples R China

[2] Chinese Acad Forestry, Res Inst Wood Ind, Beijing, Peoples R China

[3] Northeast Forestry Univ, Coll Mech & Elect Engn, Harbin, Peoples R China

来源：

JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY | 2015年 / 35卷 / 05期

基金：

中国国家自然科学基金;

关键词：

TiO2; UV-drive; reversible wettability; low-temperature hydrothermal method; INORGANIC COMPOSITES; WATER; PERFORMANCE; FABRICATION; DEPOSITION; CONVERSION; COATINGS; ZNO;

D O I：

10.1080/02773813.2014.984078

中图分类号：

TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];

学科分类号：

0805 ; 080502 ; 0822 ;

摘要：

The reversible photocontrol of wood-surface wettability between superhydrophilicity and superhydrophobicity based on a TiO2 film modified with octadecyl trichlorosilane (OTS) was achieved via a facile hydrothermal method at low temperature. Under UV illumination, the wood surface became superhydrophilic with a water contact angle (WCA) of approximately 0 degrees. However, when placed in the dark, a superhydrophobic wood surface with a WCA of approximately 152 degrees was achieved. The mechanism of the reversible photocontrol of wood-surface wettability is discussed in this article. This photocontrolled wood surface may have potential for wood self-cleaning or manipulation in response to indoor humidity.

引用

页码：365 / 373

页数：9

共 43 条

[1] Accelerated Mold Test on Dried Pine Sapwood Boards: Impact of Contact Heat Treatment [J].

Ahmed, Sheikh Ali ;

Yang, Qian ;

Sehlstedt-Persson, Margot ;

Moren, Tom .

JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY, 2013, 33 (03) :174-187

[2] Crystallinity of wood and the size of cellulose crystallites in Norway spruce (Picea abies) [J].

Andersson, S ;

Serimaa, R ;

Paakkari, T ;

Saranpää, P ;

Pesonen, E .

JOURNAL OF WOOD SCIENCE, 2003, 49 (06) :531-537

[3] Reversible wettability changes in colloidal TiO2 nanorod thin-film coatings under selective UV laser irradiation [J].

Caputo, Gianvito ;

Nobile, Concetta ;

Kipp, Tobias ;

Blasi, Laura ;

Grillo, Vincenzo ;

Carlino, Elvio ;

Manna, Liberato ;

Cingolani, Roberto ;

Cozzoli, Pantaleo Davide ;

Athanassiou, Athanassia .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (03) :701-714

[4] Titanium dioxide nanomaterials: Synthesis, properties, modifications, and applications [J].

Chen, Xiaobo ;

Mao, Samuel S. .

CHEMICAL REVIEWS, 2007, 107 (07) :2891-2959

[5] Enhancing the performance of exterior waterborne coatings for wood by inorganic nanosized UV absorbers [J].

Cristea, Mirela Vlad ;

Riedl, Bernard ;

Blanchet, Pierre .

PROGRESS IN ORGANIC COATINGS, 2010, 69 (04) :432-441

[6] Surface checking of wood is increased by photodegradation caused by ultraviolet and visible light [J].

Evans, P. D. ;

Urban, K. ;

Chowdhury, M. J. A. .

WOOD SCIENCE AND TECHNOLOGY, 2008, 42 (03) :251-265

[7]

EVANS PD, 1988, WOOD FIBER SCI, V20, P487

[8] Design and creation of superwetting/antiwetting surfaces [J].

Feng, Xinjian ;

Jiang, Lei .

ADVANCED MATERIALS, 2006, 18 (23) :3063-3078

[9] The fabrication and switchable superhydrophobicity of TiO2 nanorod films [J].

Feng, XJ ;

Zhai, J ;

Jiang, L .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (32) :5115-5118

[10] Water-repellent legs of water striders [J].

Gao, XF ;

Jiang, L .

NATURE, 2004, 432 (7013) :36-36

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