Preparation of highly stable superhydrophobic TiO2 surfaces with completely suppressed photocatalytic activity

Kwang Dae Kim; Hyun Ook Seo; Chae Won Sim; Myung Geun Jeong; Young Dok Kim; Dong Chan Lim

doi:10.1016/j.porgcoat.2012.11.010

Preparation of highly stable superhydrophobic TiO₂ surfaces with completely suppressed photocatalytic activity

Kwang Dae Kim, Hyun Ook Seo, Chae Won Sim, Myung Geun Jeong, Young Dok Kim, Dong Chan Lim

Department of Chemistry

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

39 Scopus citations

Abstract

TiO₂ nanoparticles with a mean size of 20-30 nm were covered by ultrathin polydimethylsiloxane (PDMS) film, which shows hydrophobic properties. Surfaces consisting of the PDMS-coated TiO₂ particles showed water contact angles close to 170°. In contrast to the hydrophobic films consisting of organic molecules, which can be photocatalytically decomposed on TiO₂ in the presence of UV light, PDMS-coating on TiO₂ was highly stable. The PDMS-coating completely suppressed the photocatalytic activity of TiO₂. The unique properties of PDMS-coating can be exploited for UV protection layer and self-cleaning surfaces.

Original language	English
Pages (from-to)	596-600
Number of pages	5
Journal	Progress in Organic Coatings
Volume	76
Issue number	4
DOIs	https://doi.org/10.1016/j.porgcoat.2012.11.010
State	Published - Apr 2013

Keywords

Nanostructures
Photocatalysis
Polydimethylsiloxane coating
Superhydrophobicity
TiO

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10.1016/j.porgcoat.2012.11.010

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title = "Preparation of highly stable superhydrophobic TiO2 surfaces with completely suppressed photocatalytic activity",

abstract = "TiO2 nanoparticles with a mean size of 20-30 nm were covered by ultrathin polydimethylsiloxane (PDMS) film, which shows hydrophobic properties. Surfaces consisting of the PDMS-coated TiO2 particles showed water contact angles close to 170°. In contrast to the hydrophobic films consisting of organic molecules, which can be photocatalytically decomposed on TiO2 in the presence of UV light, PDMS-coating on TiO2 was highly stable. The PDMS-coating completely suppressed the photocatalytic activity of TiO2. The unique properties of PDMS-coating can be exploited for UV protection layer and self-cleaning surfaces.",

keywords = "Nanostructures, Photocatalysis, Polydimethylsiloxane coating, Superhydrophobicity, TiO",

author = "Kim, \{Kwang Dae\} and Seo, \{Hyun Ook\} and Sim, \{Chae Won\} and Jeong, \{Myung Geun\} and Kim, \{Young Dok\} and Lim, \{Dong Chan\}",

year = "2013",

month = apr,

doi = "10.1016/j.porgcoat.2012.11.010",

language = "English",

volume = "76",

pages = "596--600",

journal = "Progress in Organic Coatings",

issn = "0300-9440",

publisher = "Elsevier B.V.",

number = "4",

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TY - JOUR

T1 - Preparation of highly stable superhydrophobic TiO2 surfaces with completely suppressed photocatalytic activity

AU - Kim, Kwang Dae

AU - Seo, Hyun Ook

AU - Sim, Chae Won

AU - Jeong, Myung Geun

AU - Kim, Young Dok

AU - Lim, Dong Chan

PY - 2013/4

Y1 - 2013/4

N2 - TiO2 nanoparticles with a mean size of 20-30 nm were covered by ultrathin polydimethylsiloxane (PDMS) film, which shows hydrophobic properties. Surfaces consisting of the PDMS-coated TiO2 particles showed water contact angles close to 170°. In contrast to the hydrophobic films consisting of organic molecules, which can be photocatalytically decomposed on TiO2 in the presence of UV light, PDMS-coating on TiO2 was highly stable. The PDMS-coating completely suppressed the photocatalytic activity of TiO2. The unique properties of PDMS-coating can be exploited for UV protection layer and self-cleaning surfaces.

AB - TiO2 nanoparticles with a mean size of 20-30 nm were covered by ultrathin polydimethylsiloxane (PDMS) film, which shows hydrophobic properties. Surfaces consisting of the PDMS-coated TiO2 particles showed water contact angles close to 170°. In contrast to the hydrophobic films consisting of organic molecules, which can be photocatalytically decomposed on TiO2 in the presence of UV light, PDMS-coating on TiO2 was highly stable. The PDMS-coating completely suppressed the photocatalytic activity of TiO2. The unique properties of PDMS-coating can be exploited for UV protection layer and self-cleaning surfaces.

KW - Nanostructures

KW - Photocatalysis

KW - Polydimethylsiloxane coating

KW - Superhydrophobicity

KW - TiO

UR - https://www.scopus.com/pages/publications/84874108347

U2 - 10.1016/j.porgcoat.2012.11.010

DO - 10.1016/j.porgcoat.2012.11.010

M3 - Article

AN - SCOPUS:84874108347

SN - 0300-9440

VL - 76

SP - 596

EP - 600

JO - Progress in Organic Coatings

JF - Progress in Organic Coatings

IS - 4

ER -

Preparation of highly stable superhydrophobic TiO₂ surfaces with completely suppressed photocatalytic activity

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