UV-Driven Reversible Switching of a Polystyrene/Titania Nanocomposite Coating between Superhydrophobicity and Superhydrophilicity

被引：65
作者：
Hou, Weixin [1 ,2 ]
Wang, Qihua [1 ]
机构：
[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
LANGMUIR | 2009年 / 25卷 / 12期
关键词：
PHOTOCATALYTIC WETTABILITY CONVERSION; COATED SURFACES; CONTACT-ANGLE; NANOROD FILMS; TRANSITION; FABRICATION; NANOFIBERS; WATER;
D O I：
10.1021/la900151y
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Hydrophilic titania (TiO2) nanoparticles were dispersed in solutions of polystyrene (PS), and the suspensions were cast on glass surfaces. The effect of drying temperature on the hydrophobic character of PS/TiO2 was investigated: the static water contact angle increased with the drying temperature, and the as-prepared coating could be adjusted from superhydrophilicity to superhydrophobicity just by controlling the drying temperature. Moreover, the superhydrophobic coating turning into a superhydrophilic one (CA < 5 degrees) after UV illumination, which can be recovered through being heated.
引用
收藏
页码：6875 / 6879
页数：5
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共 33 条
  • [1] Reversible wettability of photoresponsive pyrimidine-coated surfaces
    Abbott, S
    Ralston, J
    Reynolds, G
    Hayes, R
    [J]. LANGMUIR, 1999, 15 (26) : 8923 - 8928
  • [2] Reversible superhydrophobic to superhydrophilic conversion of Ag@TiO2 composite nanofiber surfaces
    Borras, Ana
    Barranco, Angel
    Gonzalez-Elipe, Agustin R.
    [J]. LANGMUIR, 2008, 24 (15) : 8021 - 8026
  • [3] Wettability of porous surfaces.
    Cassie, ABD
    Baxter, S
    [J]. TRANSACTIONS OF THE FARADAY SOCIETY, 1944, 40 : 0546 - 0550
  • [4] Argon plasma treatment of polystyrene microtiter wells.: Chemical and physical characterisation by contact angle, ToF-SIMS, XPS and STM
    Davies, J
    Nunnerley, CS
    Brisley, AC
    Sunderland, RF
    Edwards, JC
    Krüger, P
    Knes, R
    Paul, AJ
    Hibbert, S
    [J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2000, 174 (03) : 287 - 295
  • [5] Reversible electrowetting of vertically aligned superhydrophobic carbon nanofibers
    Dhindsa, Manjeet S.
    Smith, Neil R.
    Heikenfeld, Jason
    Rack, Philip D.
    Fowlkes, Jason D.
    Doktycz, Mitchel J.
    Melechko, Anatoli V.
    Simpson, Micheal L.
    [J]. LANGMUIR, 2006, 22 (21) : 9030 - 9034
  • [6] Reversible super-hydrophobicity to super-hydrophilicity transition of aligned ZnO nanorod films
    Feng, XJ
    Feng, L
    Jin, MH
    Zhai, J
    Jiang, L
    Zhu, DB
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (01) : 62 - 63
  • [7] The fabrication and switchable superhydrophobicity of TiO2 nanorod films
    Feng, XJ
    Zhai, J
    Jiang, L
    [J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (32) : 5115 - 5118
  • [8] From superhydrophilicity to superhydrophobicity: The wetting behavior of a methylsilicone/phenolic resin/silica composite surface
    Hou, Weixin
    Wang, Qihua
    [J]. LANGMUIR, 2007, 23 (19) : 9695 - 9698
  • [9] Self-assembled monolayers of dendron thiols for electrodeposition of gold nanostructures: Toward fabrication of superhydrophobic/superhydrophilic surfaces and pH-responsive surfaces
    Jiang, YG
    Wang, ZQ
    Yu, X
    Shi, F
    Xu, HP
    Zhang, X
    Smet, M
    Dehaen, W
    [J]. LANGMUIR, 2005, 21 (05) : 1986 - 1990
  • [10] Electric field induced, superhydrophobic to superhydrophilic switching in multiwalled carbon nanotube papers
    Kakade, Bhalchandra
    Mehta, Rutvik
    Durge, Apurva
    Kulkarni, Sneha
    Pillai, Vijayamohanan
    [J]. NANO LETTERS, 2008, 8 (09) : 2693 - 2696
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