Improved hydrophilicity of zinc oxide-incorporated layer-by-layer polyelectrolyte film fabricated by dip coating method

T. Charinpanitkul; W. Suthabanditpong; H. Watanabe; T. Shirai; K. Faungnawakij; N. Viriya-empikul; M. Fuji

Journal of Industrial and Engineering Chemistry, Vol.18, No.4, 1441-1445, July, 2012

DOI10.1016/j.jiec.2012.02.003 Export Citation

Improved hydrophilicity of zinc oxide-incorporated layer-by-layer polyelectrolyte film fabricated by dip coating method

T. Charinpanitkul^{1, †}, W. Suthabanditpong^{1, 2}, H. Watanabe², T. Shirai², K. Faungnawakij³, N. Viriya-empikul³, and M. Fuji²

¹Center of Excellence in Particle Technology, Faculty of Engineering, Chulalongkorn University, Payathai, Patumwan, Bangkok, Thailand
²Ceramics Research Laboratory, Nagoya Institute of Technology, Nagoya, Japan
³National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency, Thailand Science Park, Patumtani, Thailand

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ZnO nanoparticles suspended in poly(acrylic acid) (PAA) were deposited onto layer-by-layer (LBL) polyelectrolyte (PET) films fabricated from poly(allylamine hydrochloride) (PAH) and PAA by dip coating method. Effect of etching time and concentration of ZnO suspension on hydrophilicity of the LBL-PET films before and after UV irradiation was examined using water contact angle measurement. 2.0 M PAH/PAA solutions with a dipping speed of 3.0 cm/min provided stable LBL-PET films with thickness sufficient for HCl etching. Glass substrates with the etched LBL-PET film dipped into 0.2 wt.% ZnO suspension exhibited the contact angle of 108 after irradiated by UV for 60 min.

Keywords:ZnO;Polyelectrolyte;Layer-by-layer;Hydrophilicity;Water contact angle

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[2] Guo M, Diao P, Cai SM, Thin Solid Films, 515(18), 7162 (2007)

[3] Charinpanitkul T, Poommarin P, Wongkaew A, Kim KS, J. Ind. Eng. Chem., 15(2), 163 (2009)

[4] Numpud P, Charinpanitkul T, Tanthapanichakoon W, J. Ceram. Soc. Jpn., 116, 414 (2008)

[5] Nimittrakoolchai O, Supothina S, J. Eur. Ceram. Soc., 28, 947 (2008)

[6] Karuppuchamy S, Ito S, Vacuum., 82, 547 (2008)

[7] Li YM, Xu LH, Li XY, Shen XQ, Wang AL, Appl. Surf. Sci., 256(14), 4543 (2010)

[8] Shin YJ, Kim SH, Yang DH, Kwon H, Shin JS, J. Ind. Eng. Chem., 16(3), 380 (2010)

[9] Houng B, Huang CL, Tsai SY, J. Cryst. Growth, 307(2), 328 (2007)

[10] Wang C, Wang E, Lan Y, Li Q, Mao B, Tian C, Thin Solid Films., 516, 6058 (2008)

[11] Miyagaki S, Yamanashi H, Yamaguchi A, Nishiyama L, J. Vac. Sci. Technol. B, 22(6), 3063 (2004)

[12] Lee J, Chae J, Nahm K, Kang M, J. Ind. Eng. Chem., 15(5), 645 (2009)

[13] Dorrer C, Ruhe J, Langmuir., 24, 1959 (2007)

[14] Sun RD, Nakajima A, Fujishima A, Watanabe T, Hashimoto K, J. Phys. Chem. B, 105(10), 1984 (2001)

[15] Lowman GM, Buratto SK, Thin Solid Films, 405(1-2), 135 (2002)

[16] Yao PC, Hang ST, Lin YS, Yen WT, Lin YC, Appl. Surf. Sci., 257(5), 1441 (2010)