Surface chemical analysis of photocatalytic wettability conversion of TiO₂ nanoparticle coating

Milena Stepien; Jarkko Saarinen; Hannu Teisala; Mikko Tuominen; Mikko Aromaa; Jurkka Kuusipalo; Jyrki M. Mäkelä; Martti Toivakka

doi:10.1016/j.surfcoat.2012.08.008

Surface chemical analysis of photocatalytic wettability conversion of TiO₂ nanoparticle coating

Milena Stepien, Jarkko Saarinen, Hannu Teisala, Mikko Tuominen, Mikko Aromaa, Jurkka Kuusipalo, Jyrki M. Mäkelä, Martti Toivakka

Tutkimustuotos: Lehtiartikkeli › Artikkeli › Tieteellinen › vertaisarvioitu

44 Sitaatiot (Scopus)

Abstrakti

Surface chemical analysis of photocatalytic wettability conversion of the TiO2 nanoparticle coating is performed by the water contact angle measurement and X-ray photoelectron spectroscopy (XPS). It is observed that the UVA irradiation and heat treatment strongly affect on the water contact angle. Initially superhydrophobic TiO2 nanoparticle coated paperboard surfaces can undergo several transition loops between hydrophobic and hydrophilic states: the surface hydrophilicity can be induced by ultraviolet A (UVA) radiation whereas high temperature oven treatment results in superhydrophobic surface. The XPS spectra shows that UVA irradiation induces photocatalytic oxidation of the TiO2 nanocoated surface whereas the oven treatment decreases the amount of oxygen related to the hydroxyl groups. The wettability changes are related to the degree of hydroxyl groups or aliphatic chains present on the TiO2 surface. (c) 2012 Elsevier B.V. All rights reserved.

Alkuperäiskieli	Ei tiedossa
Sivut	73–79
Sivumäärä	7
Julkaisu	Surface and Coatings Technology
Vuosikerta	208
DOI - pysyväislinkit	https://doi.org/10.1016/j.surfcoat.2012.08.008
Tila	Julkaistu - 2012
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

Keywords

Liquid flame spray process
Nanocoatings
Photocatalytic effect
Surface chemistry
Wettability

Pääsy asiakirjaan

10.1016/j.surfcoat.2012.08.008

http://ac.els-cdn.com/S0257897212007839/1-s2.0-S0257897212007839-main.pdf?_tid=891378ec-7637-11e5-9442-00000aab0f26∿nat=1445241840_7f783dfa811e8cde31396435509858c5

Viittausmuodot

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title = "Surface chemical analysis of photocatalytic wettability conversion of TiO₂ nanoparticle coating",

abstract = "Surface chemical analysis of photocatalytic wettability conversion of the TiO2 nanoparticle coating is performed by the water contact angle measurement and X-ray photoelectron spectroscopy (XPS). It is observed that the UVA irradiation and heat treatment strongly affect on the water contact angle. Initially superhydrophobic TiO2 nanoparticle coated paperboard surfaces can undergo several transition loops between hydrophobic and hydrophilic states: the surface hydrophilicity can be induced by ultraviolet A (UVA) radiation whereas high temperature oven treatment results in superhydrophobic surface. The XPS spectra shows that UVA irradiation induces photocatalytic oxidation of the TiO2 nanocoated surface whereas the oven treatment decreases the amount of oxygen related to the hydroxyl groups. The wettability changes are related to the degree of hydroxyl groups or aliphatic chains present on the TiO2 surface. (c) 2012 Elsevier B.V. All rights reserved.",

keywords = "Liquid flame spray process, Nanocoatings, Photocatalytic effect, Surface chemistry, Wettability, Liquid flame spray process, Nanocoatings, Photocatalytic effect, Surface chemistry, Wettability, Liquid flame spray process, Nanocoatings, Photocatalytic effect, Surface chemistry, Wettability",

author = "Milena Stepien and Jarkko Saarinen and Hannu Teisala and Mikko Tuominen and Mikko Aromaa and Jurkka Kuusipalo and M{\"a}kel{\"a}, {Jyrki M.} and Martti Toivakka",

year = "2012",

doi = "10.1016/j.surfcoat.2012.08.008",

language = "Odefinierat/ok{\"a}nt",

volume = "208",

pages = "73–79",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

publisher = "Elsevier",

}

TY - JOUR

T1 - Surface chemical analysis of photocatalytic wettability conversion of TiO₂ nanoparticle coating

AU - Stepien, Milena

AU - Saarinen, Jarkko

AU - Teisala, Hannu

AU - Tuominen, Mikko

AU - Aromaa, Mikko

AU - Kuusipalo, Jurkka

AU - Mäkelä, Jyrki M.

AU - Toivakka, Martti

PY - 2012

Y1 - 2012

N2 - Surface chemical analysis of photocatalytic wettability conversion of the TiO2 nanoparticle coating is performed by the water contact angle measurement and X-ray photoelectron spectroscopy (XPS). It is observed that the UVA irradiation and heat treatment strongly affect on the water contact angle. Initially superhydrophobic TiO2 nanoparticle coated paperboard surfaces can undergo several transition loops between hydrophobic and hydrophilic states: the surface hydrophilicity can be induced by ultraviolet A (UVA) radiation whereas high temperature oven treatment results in superhydrophobic surface. The XPS spectra shows that UVA irradiation induces photocatalytic oxidation of the TiO2 nanocoated surface whereas the oven treatment decreases the amount of oxygen related to the hydroxyl groups. The wettability changes are related to the degree of hydroxyl groups or aliphatic chains present on the TiO2 surface. (c) 2012 Elsevier B.V. All rights reserved.

AB - Surface chemical analysis of photocatalytic wettability conversion of the TiO2 nanoparticle coating is performed by the water contact angle measurement and X-ray photoelectron spectroscopy (XPS). It is observed that the UVA irradiation and heat treatment strongly affect on the water contact angle. Initially superhydrophobic TiO2 nanoparticle coated paperboard surfaces can undergo several transition loops between hydrophobic and hydrophilic states: the surface hydrophilicity can be induced by ultraviolet A (UVA) radiation whereas high temperature oven treatment results in superhydrophobic surface. The XPS spectra shows that UVA irradiation induces photocatalytic oxidation of the TiO2 nanocoated surface whereas the oven treatment decreases the amount of oxygen related to the hydroxyl groups. The wettability changes are related to the degree of hydroxyl groups or aliphatic chains present on the TiO2 surface. (c) 2012 Elsevier B.V. All rights reserved.

KW - Liquid flame spray process

KW - Nanocoatings

KW - Photocatalytic effect

KW - Surface chemistry

KW - Wettability

KW - Liquid flame spray process

KW - Nanocoatings

KW - Photocatalytic effect

KW - Surface chemistry

KW - Wettability

KW - Liquid flame spray process

KW - Nanocoatings

KW - Photocatalytic effect

KW - Surface chemistry

KW - Wettability

U2 - 10.1016/j.surfcoat.2012.08.008

DO - 10.1016/j.surfcoat.2012.08.008

M3 - Artikel

SN - 0257-8972

VL - 208

SP - 73

EP - 79

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

ER -