Photoreactive composite coating with composition dependent wetting properties

L. Mérai, Deák, D. Sebők, E. Csapó, T. S. Kolumbán, B. Hopp, I. Dékány, L. Janovák

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Photoreactive composite thin layers with tunable wetting properties from superhydrophilic to superhydrophobic nature were prepared. To achieve extreme wetting properties, the adequate surface roughness is a crucial factor, which was achieved by the incorporation of plasmonic Ag-TiO2 particles, as polymer filler, into the smooth polymer film with adjusted hydrophilicity. The initial copolymer films were synthesized from hydrophilic 2-hydroxyethyl-acrylate (HEA) and hydrophobic perfluorodecyl-acrylate (PFDAc) monomers. In the case of hydrophobic PFDAc, the photocatalyst-roughened thin films displayed superhydrophobic behavior (γs tot ~ 2.3±1.7 mJ/m2, Θ > 150°), while the roughened hydrophilic pHEA layers possessed superhydrophilicity (γs tot ~ 72.1±0.2 mJ/m2, Θ ~ 0°). The photoactivity of the composites was presented both in solid/ gas (S/G) and solid/ liquid (S/L) interfaces. According to the light-emitting diode (LED) light photodegradation tests on ethanol (EtOH) as volatile organic compound (VOC) model-molecules at the S/L interface, the superhydrophobic hybrid layer was photooxidized 88.3% of the initial EtOH (0.36 mM). At S/L interface the photocatalytic efficiency was depended on the polarity of the model pollutant molecules: the photooxidation of hydrophobic SUDAN IV (c0 = 0.25 mg/mL) dye reached 80%, while in the case of the hydrophilic Methylene Blue dye (c0 = 0.002 mg/mL) it was only 17.3% after 90 min blue LED light (λ = 405 nm) illumination.

Original languageEnglish
Pages (from-to)1061-1071
Number of pages11
JournalExpress Polymer Letters
Volume12
Issue number12
DOIs
Publication statusPublished - Dec 1 2018

Fingerprint

Composite coatings
liquid-solid interfaces
acrylates
wetting
Wetting
coatings
composite materials
light emitting diodes
dyes
Chemical analysis
Light emitting diodes
Liquids
Coloring Agents
Dyes
photooxidation
volatile organic compounds
methylene blue
polymers
fillers
Volatile Organic Compounds

Keywords

  • Adjustable wetting
  • Coatings
  • Nanomaterials
  • Polymer composites
  • Surface roughness

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

Mérai, L., Deák, Sebők, D., Csapó, E., Kolumbán, T. S., Hopp, B., ... Janovák, L. (2018). Photoreactive composite coating with composition dependent wetting properties. Express Polymer Letters, 12(12), 1061-1071. https://doi.org/10.3144/expresspolymlett.2018.93

Photoreactive composite coating with composition dependent wetting properties. / Mérai, L.; Deák; Sebők, D.; Csapó, E.; Kolumbán, T. S.; Hopp, B.; Dékány, I.; Janovák, L.

In: Express Polymer Letters, Vol. 12, No. 12, 01.12.2018, p. 1061-1071.

Research output: Contribution to journalArticle

Mérai, L. ; Deák ; Sebők, D. ; Csapó, E. ; Kolumbán, T. S. ; Hopp, B. ; Dékány, I. ; Janovák, L. / Photoreactive composite coating with composition dependent wetting properties. In: Express Polymer Letters. 2018 ; Vol. 12, No. 12. pp. 1061-1071.
@article{fa9ac8ceeaaa4618ac26b47581f78fa6,
title = "Photoreactive composite coating with composition dependent wetting properties",
abstract = "Photoreactive composite thin layers with tunable wetting properties from superhydrophilic to superhydrophobic nature were prepared. To achieve extreme wetting properties, the adequate surface roughness is a crucial factor, which was achieved by the incorporation of plasmonic Ag-TiO2 particles, as polymer filler, into the smooth polymer film with adjusted hydrophilicity. The initial copolymer films were synthesized from hydrophilic 2-hydroxyethyl-acrylate (HEA) and hydrophobic perfluorodecyl-acrylate (PFDAc) monomers. In the case of hydrophobic PFDAc, the photocatalyst-roughened thin films displayed superhydrophobic behavior (γs tot ~ 2.3±1.7 mJ/m2, Θ > 150°), while the roughened hydrophilic pHEA layers possessed superhydrophilicity (γs tot ~ 72.1±0.2 mJ/m2, Θ ~ 0°). The photoactivity of the composites was presented both in solid/ gas (S/G) and solid/ liquid (S/L) interfaces. According to the light-emitting diode (LED) light photodegradation tests on ethanol (EtOH) as volatile organic compound (VOC) model-molecules at the S/L interface, the superhydrophobic hybrid layer was photooxidized 88.3{\%} of the initial EtOH (0.36 mM). At S/L interface the photocatalytic efficiency was depended on the polarity of the model pollutant molecules: the photooxidation of hydrophobic SUDAN IV (c0 = 0.25 mg/mL) dye reached 80{\%}, while in the case of the hydrophilic Methylene Blue dye (c0 = 0.002 mg/mL) it was only 17.3{\%} after 90 min blue LED light (λ = 405 nm) illumination.",
keywords = "Adjustable wetting, Coatings, Nanomaterials, Polymer composites, Surface roughness",
author = "L. M{\'e}rai and De{\'a}k and D. Sebők and E. Csap{\'o} and Kolumb{\'a}n, {T. S.} and B. Hopp and I. D{\'e}k{\'a}ny and L. Janov{\'a}k",
year = "2018",
month = "12",
day = "1",
doi = "10.3144/expresspolymlett.2018.93",
language = "English",
volume = "12",
pages = "1061--1071",
journal = "Express Polymer Letters",
issn = "1788-618X",
publisher = "BME-PT and GTE",
number = "12",

}

TY - JOUR

T1 - Photoreactive composite coating with composition dependent wetting properties

AU - Mérai, L.

AU - Deák,

AU - Sebők, D.

AU - Csapó, E.

AU - Kolumbán, T. S.

AU - Hopp, B.

AU - Dékány, I.

AU - Janovák, L.

PY - 2018/12/1

Y1 - 2018/12/1

N2 - Photoreactive composite thin layers with tunable wetting properties from superhydrophilic to superhydrophobic nature were prepared. To achieve extreme wetting properties, the adequate surface roughness is a crucial factor, which was achieved by the incorporation of plasmonic Ag-TiO2 particles, as polymer filler, into the smooth polymer film with adjusted hydrophilicity. The initial copolymer films were synthesized from hydrophilic 2-hydroxyethyl-acrylate (HEA) and hydrophobic perfluorodecyl-acrylate (PFDAc) monomers. In the case of hydrophobic PFDAc, the photocatalyst-roughened thin films displayed superhydrophobic behavior (γs tot ~ 2.3±1.7 mJ/m2, Θ > 150°), while the roughened hydrophilic pHEA layers possessed superhydrophilicity (γs tot ~ 72.1±0.2 mJ/m2, Θ ~ 0°). The photoactivity of the composites was presented both in solid/ gas (S/G) and solid/ liquid (S/L) interfaces. According to the light-emitting diode (LED) light photodegradation tests on ethanol (EtOH) as volatile organic compound (VOC) model-molecules at the S/L interface, the superhydrophobic hybrid layer was photooxidized 88.3% of the initial EtOH (0.36 mM). At S/L interface the photocatalytic efficiency was depended on the polarity of the model pollutant molecules: the photooxidation of hydrophobic SUDAN IV (c0 = 0.25 mg/mL) dye reached 80%, while in the case of the hydrophilic Methylene Blue dye (c0 = 0.002 mg/mL) it was only 17.3% after 90 min blue LED light (λ = 405 nm) illumination.

AB - Photoreactive composite thin layers with tunable wetting properties from superhydrophilic to superhydrophobic nature were prepared. To achieve extreme wetting properties, the adequate surface roughness is a crucial factor, which was achieved by the incorporation of plasmonic Ag-TiO2 particles, as polymer filler, into the smooth polymer film with adjusted hydrophilicity. The initial copolymer films were synthesized from hydrophilic 2-hydroxyethyl-acrylate (HEA) and hydrophobic perfluorodecyl-acrylate (PFDAc) monomers. In the case of hydrophobic PFDAc, the photocatalyst-roughened thin films displayed superhydrophobic behavior (γs tot ~ 2.3±1.7 mJ/m2, Θ > 150°), while the roughened hydrophilic pHEA layers possessed superhydrophilicity (γs tot ~ 72.1±0.2 mJ/m2, Θ ~ 0°). The photoactivity of the composites was presented both in solid/ gas (S/G) and solid/ liquid (S/L) interfaces. According to the light-emitting diode (LED) light photodegradation tests on ethanol (EtOH) as volatile organic compound (VOC) model-molecules at the S/L interface, the superhydrophobic hybrid layer was photooxidized 88.3% of the initial EtOH (0.36 mM). At S/L interface the photocatalytic efficiency was depended on the polarity of the model pollutant molecules: the photooxidation of hydrophobic SUDAN IV (c0 = 0.25 mg/mL) dye reached 80%, while in the case of the hydrophilic Methylene Blue dye (c0 = 0.002 mg/mL) it was only 17.3% after 90 min blue LED light (λ = 405 nm) illumination.

KW - Adjustable wetting

KW - Coatings

KW - Nanomaterials

KW - Polymer composites

KW - Surface roughness

UR - http://www.scopus.com/inward/record.url?scp=85055206015&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85055206015&partnerID=8YFLogxK

U2 - 10.3144/expresspolymlett.2018.93

DO - 10.3144/expresspolymlett.2018.93

M3 - Article

AN - SCOPUS:85055206015

VL - 12

SP - 1061

EP - 1071

JO - Express Polymer Letters

JF - Express Polymer Letters

SN - 1788-618X

IS - 12

ER -