Preparation of self-cleaning surfaces with a dual functionality ofsuperhydrophobicity and photocatalytic activity

Eun Ji Park; Hye Soo Yoon; Dae Han Kim; Yong Ho Kim; Young Dok Kim

doi:10.1016/j.apsusc.2014.07.122

Preparation of self-cleaning surfaces with a dual functionality ofsuperhydrophobicity and photocatalytic activity

Eun Ji Park, Hye Soo Yoon, Dae Han Kim, Yong Ho Kim, Young Dok Kim

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

57 Scopus citations

Abstract

Thin film of polydimethylsiloxane (PDMS) was deposited on SiO ₂ nanoparticles by chemical vapor depo-sition, and SiO ₂ became completely hydrophobic after PDMS coating. Mixtures of TiO ₂ and PDMS-coatedSiO ₂ nanoparticles with various relative ratios were prepared, and distributed on glass surfaces, andwater contact angles and photocatalytic activities of these surfaces were studied. Samples consisting ofTiO ₂ and PDMS-coated SiO ₂ with a ratio of 7:3 showed a highly stable superhydrophobicity under UVirradiation with a water contact angle of 165and UV-driven photocatalytic activity for decomposition ofmethylene blue and phenol in aqueous solution. Our process can be exploited for fabricating self-cleaningsurfaces with dual functionality of superhydrophobicity and photocatalytic activity at the same time.

Original language	English
Pages (from-to)	367-371
Number of pages	5
Journal	Applied Surface Science
Volume	319
Issue number	1
DOIs	https://doi.org/10.1016/j.apsusc.2014.07.122
State	Published - 2014

Keywords

PDMS
Photocatalysis
SiO
Superhydrophobicity
TiO

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10.1016/j.apsusc.2014.07.122

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title = "Preparation of self-cleaning surfaces with a dual functionality ofsuperhydrophobicity and photocatalytic activity",

abstract = " Thin film of polydimethylsiloxane (PDMS) was deposited on SiO 2 nanoparticles by chemical vapor depo-sition, and SiO 2 became completely hydrophobic after PDMS coating. Mixtures of TiO 2 and PDMS-coatedSiO 2 nanoparticles with various relative ratios were prepared, and distributed on glass surfaces, andwater contact angles and photocatalytic activities of these surfaces were studied. Samples consisting ofTiO 2 and PDMS-coated SiO 2 with a ratio of 7:3 showed a highly stable superhydrophobicity under UVirradiation with a water contact angle of 165and UV-driven photocatalytic activity for decomposition ofmethylene blue and phenol in aqueous solution. Our process can be exploited for fabricating self-cleaningsurfaces with dual functionality of superhydrophobicity and photocatalytic activity at the same time.",

keywords = "PDMS, Photocatalysis, SiO, Superhydrophobicity, TiO",

author = "Park, \{Eun Ji\} and Yoon, \{Hye Soo\} and Kim, \{Dae Han\} and Kim, \{Yong Ho\} and Kim, \{Young Dok\}",

year = "2014",

doi = "10.1016/j.apsusc.2014.07.122",

language = "English",

volume = "319",

pages = "367--371",

journal = "Applied Surface Science",

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TY - JOUR

T1 - Preparation of self-cleaning surfaces with a dual functionality ofsuperhydrophobicity and photocatalytic activity

AU - Park, Eun Ji

AU - Yoon, Hye Soo

AU - Kim, Dae Han

AU - Kim, Yong Ho

AU - Kim, Young Dok

PY - 2014

Y1 - 2014

N2 - Thin film of polydimethylsiloxane (PDMS) was deposited on SiO 2 nanoparticles by chemical vapor depo-sition, and SiO 2 became completely hydrophobic after PDMS coating. Mixtures of TiO 2 and PDMS-coatedSiO 2 nanoparticles with various relative ratios were prepared, and distributed on glass surfaces, andwater contact angles and photocatalytic activities of these surfaces were studied. Samples consisting ofTiO 2 and PDMS-coated SiO 2 with a ratio of 7:3 showed a highly stable superhydrophobicity under UVirradiation with a water contact angle of 165and UV-driven photocatalytic activity for decomposition ofmethylene blue and phenol in aqueous solution. Our process can be exploited for fabricating self-cleaningsurfaces with dual functionality of superhydrophobicity and photocatalytic activity at the same time.

AB - Thin film of polydimethylsiloxane (PDMS) was deposited on SiO 2 nanoparticles by chemical vapor depo-sition, and SiO 2 became completely hydrophobic after PDMS coating. Mixtures of TiO 2 and PDMS-coatedSiO 2 nanoparticles with various relative ratios were prepared, and distributed on glass surfaces, andwater contact angles and photocatalytic activities of these surfaces were studied. Samples consisting ofTiO 2 and PDMS-coated SiO 2 with a ratio of 7:3 showed a highly stable superhydrophobicity under UVirradiation with a water contact angle of 165and UV-driven photocatalytic activity for decomposition ofmethylene blue and phenol in aqueous solution. Our process can be exploited for fabricating self-cleaningsurfaces with dual functionality of superhydrophobicity and photocatalytic activity at the same time.

KW - PDMS

KW - Photocatalysis

KW - SiO

KW - Superhydrophobicity

KW - TiO

UR - https://www.scopus.com/pages/publications/84922924138

U2 - 10.1016/j.apsusc.2014.07.122

DO - 10.1016/j.apsusc.2014.07.122

M3 - Article

AN - SCOPUS:84922924138

SN - 0169-4332

VL - 319

SP - 367

EP - 371

JO - Applied Surface Science

JF - Applied Surface Science

IS - 1

ER -

Preparation of self-cleaning surfaces with a dual functionality ofsuperhydrophobicity and photocatalytic activity

Abstract

Keywords

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