Enhanced photocatalytic activity of TiO 2 by polydimethylsiloxane deposition and subsequent thermal treatment at 800 °c

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

doi:10.1016/j.tsf.2012.03.004

Enhanced photocatalytic activity of TiO ₂ by polydimethylsiloxane deposition and subsequent thermal treatment at 800 °c

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

Department of Chemistry

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

21 Scopus citations

Abstract

A thin film of polydimethylsiloxane (PDMS) was coated on TiO ₂ nanoparticles (P-25, Dagussa), and surface structures of the thin films were analyzed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Furthermore, photocatalytic activity of PDMS-coated TiO ₂ samples with various annealing temperatures was determined using UV irradiation. We show that the 800 °C-annealed sample of PDMS-coated TiO ₂ showed a two-fold higher photocatalytic activity with respect to the bare TiO ₂. The enhanced photocatalytic activity was attributed to the greater hydrophilicity of the annealed PDMS coating.

Original language	English
Pages (from-to)	4929-4933
Number of pages	5
Journal	Thin Solid Films
Volume	520
Issue number	15
DOIs	https://doi.org/10.1016/j.tsf.2012.03.004
State	Published - 31 May 2012

Keywords

Evaporation
Hydrophilic Interaction
Methylene Blue
Photocatalysis
polydimethylsiloxane
Powders
Titanium Dioxide

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10.1016/j.tsf.2012.03.004

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title = "Enhanced photocatalytic activity of TiO 2 by polydimethylsiloxane deposition and subsequent thermal treatment at 800 °c",

abstract = "A thin film of polydimethylsiloxane (PDMS) was coated on TiO 2 nanoparticles (P-25, Dagussa), and surface structures of the thin films were analyzed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Furthermore, photocatalytic activity of PDMS-coated TiO 2 samples with various annealing temperatures was determined using UV irradiation. We show that the 800 °C-annealed sample of PDMS-coated TiO 2 showed a two-fold higher photocatalytic activity with respect to the bare TiO 2. The enhanced photocatalytic activity was attributed to the greater hydrophilicity of the annealed PDMS coating.",

keywords = "Evaporation, Hydrophilic Interaction, Methylene Blue, Photocatalysis, polydimethylsiloxane, Powders, Titanium Dioxide",

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

year = "2012",

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doi = "10.1016/j.tsf.2012.03.004",

language = "English",

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journal = "Thin Solid Films",

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publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Enhanced photocatalytic activity of TiO 2 by polydimethylsiloxane deposition and subsequent thermal treatment at 800 °c

AU - Jeong, Myung Geun

AU - Seo, Hyun Ook

AU - Kim, Kwang Dae

AU - Kim, Young Dok

AU - Lim, Dong Chan

PY - 2012/5/31

Y1 - 2012/5/31

N2 - A thin film of polydimethylsiloxane (PDMS) was coated on TiO 2 nanoparticles (P-25, Dagussa), and surface structures of the thin films were analyzed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Furthermore, photocatalytic activity of PDMS-coated TiO 2 samples with various annealing temperatures was determined using UV irradiation. We show that the 800 °C-annealed sample of PDMS-coated TiO 2 showed a two-fold higher photocatalytic activity with respect to the bare TiO 2. The enhanced photocatalytic activity was attributed to the greater hydrophilicity of the annealed PDMS coating.

AB - A thin film of polydimethylsiloxane (PDMS) was coated on TiO 2 nanoparticles (P-25, Dagussa), and surface structures of the thin films were analyzed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. Furthermore, photocatalytic activity of PDMS-coated TiO 2 samples with various annealing temperatures was determined using UV irradiation. We show that the 800 °C-annealed sample of PDMS-coated TiO 2 showed a two-fold higher photocatalytic activity with respect to the bare TiO 2. The enhanced photocatalytic activity was attributed to the greater hydrophilicity of the annealed PDMS coating.

KW - Evaporation

KW - Hydrophilic Interaction

KW - Methylene Blue

KW - Photocatalysis

KW - polydimethylsiloxane

KW - Powders

KW - Titanium Dioxide

UR - https://www.scopus.com/pages/publications/84862827331

U2 - 10.1016/j.tsf.2012.03.004

DO - 10.1016/j.tsf.2012.03.004

M3 - Article

AN - SCOPUS:84862827331

SN - 0040-6090

VL - 520

SP - 4929

EP - 4933

JO - Thin Solid Films

JF - Thin Solid Films

IS - 15

ER -

Enhanced photocatalytic activity of TiO ₂ by polydimethylsiloxane deposition and subsequent thermal treatment at 800 °c

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