Detail publikačního výsledku

High photocatalytic activity of transparent films composed of ZnO nanosheets

HYNEK, J.; KALOUSEK, V.; ZOUZELKA, R.; BEZDICKA, P.; DZIK, P.; RATHOUSKY, J.; DEMEL, J.; LANG, K.

Originální název

High photocatalytic activity of transparent films composed of ZnO nanosheets

Anglický název

High photocatalytic activity of transparent films composed of ZnO nanosheets

Druh

Článek WoS

Originální abstrakt

Nanometric thin films were prepared by dip-coating and inkjet printing ZnO nanosheets on glass plates. The side-by-side alignment of the ZnO nanosheets on the substrate resulted in thin, transparent, oriented ZnO surfaces with the high-energy {001} facets exposed. The method of nanosheet deposition affected the film morphology; the dip-coated films were very smooth and nonporous, while the inkjet-printed films were rough and porous with the estimated void volume approximately 60-70% of the total film volume. The first-order rate constants for the photocatalytic degradation of 4-chlorophenol on the nanosheet-based films were approximately two times larger than those on nanocolumnar ZnO films or ZnO films prepared by the sol-gel technique. We attribute the high photocatalytic activity of the ZnO nanosheets to the fact that their {001} facets were predominantly exposed to the oxidized substrate. This surface arrangement and the simplicity of fabricating the ZnO nanosheet-based films make them promising for the construction of optical devices and dye-sensitized solar cells.

Anglický abstrakt

Nanometric thin films were prepared by dip-coating and inkjet printing ZnO nanosheets on glass plates. The side-by-side alignment of the ZnO nanosheets on the substrate resulted in thin, transparent, oriented ZnO surfaces with the high-energy {001} facets exposed. The method of nanosheet deposition affected the film morphology; the dip-coated films were very smooth and nonporous, while the inkjet-printed films were rough and porous with the estimated void volume approximately 60-70% of the total film volume. The first-order rate constants for the photocatalytic degradation of 4-chlorophenol on the nanosheet-based films were approximately two times larger than those on nanocolumnar ZnO films or ZnO films prepared by the sol-gel technique. We attribute the high photocatalytic activity of the ZnO nanosheets to the fact that their {001} facets were predominantly exposed to the oxidized substrate. This surface arrangement and the simplicity of fabricating the ZnO nanosheet-based films make them promising for the construction of optical devices and dye-sensitized solar cells.

Klíčová slova

layered ZnO, transparent film, photocatalysis, nanosheets

Klíčová slova v angličtině

layered ZnO, transparent film, photocatalysis, nanosheets

Autoři

HYNEK, J.; KALOUSEK, V.; ZOUZELKA, R.; BEZDICKA, P.; DZIK, P.; RATHOUSKY, J.; DEMEL, J.; LANG, K.

Rok RIV

2014

Vydáno

16.12.2013

Nakladatel

ACS Publications

Místo

Washington, DC

ISSN

0743-7463

Periodikum

LANGMUIR

Svazek

30

Číslo

1

Stát

Spojené státy americké

Strany od

380

Strany do

386

Strany počet

7

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@article{BUT103680,
  author="HYNEK, J. and KALOUSEK, V. and ZOUZELKA, R. and BEZDICKA, P. and DZIK, P. and RATHOUSKY, J. and DEMEL, J. and LANG, K.",
  title="High photocatalytic activity of transparent films composed of ZnO nanosheets",
  journal="LANGMUIR",
  year="2013",
  volume="30",
  number="1",
  pages="380--386",
  doi="10.1021/la404017q",
  issn="0743-7463"
}