Preparation of TiO2/WO3 composite photocatalysts by the adjustment of the semiconductors' surface charge

Lucian Baia, Eszter Orbán, Szilvia Fodor, Boglárka Hampel, Endre Zsolt Kedves, Kata Saszet, István Székely, Éva Karácsonyi, Balázs Réti, Péter Berki, Adriana Vulpoi, Klára Magyari, Alexandra Csavdári, Csaba Bolla, Veronica Coşoveanu, K. Hernádi, Monica Baia, A. Dombi, Virginia Danciu, Gábor Kovács & 1 others Zsolt Pap

Research output: Contribution to journalArticle

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Abstract

The present research focused on the preparation of TiO2/WO3 (76/24 wt. %) composite photocatalysts for the photodegradation of methyl orange under UV light. The composites were prepared by the adjustment of the surface charge of the individual semiconductors, achieving a homogeneous distribution of the components within the composite. This resulted in a homogeneous distribution of the components within the composite. The individual WO3 and TiO2 nanocrystals were obtained either by sol-gel or by hydrothermal synthesis. The produced nanomaterials were characterized by using TEM, SEM, XRD and DRS. Major differences in their photocatalytic performance depended on the nature of the precursors and the synthesis pathway.

LanguageEnglish
Pages66-71
Number of pages6
JournalMaterials Science in Semiconductor Processing
Volume42
DOIs
Publication statusPublished - Feb 1 2016

Fingerprint

Surface charge
Photocatalysts
adjusting
Semiconductor materials
preparation
composite materials
Composite materials
Hydrothermal synthesis
Photodegradation
synthesis
Nanostructured materials
Ultraviolet radiation
Nanocrystals
Sol-gels
nanocrystals
gels
Transmission electron microscopy
transmission electron microscopy
Scanning electron microscopy
scanning electron microscopy

Keywords

  • Photocatalytic activity
  • Semiconductor composites
  • Surface charge
  • Titania
  • Tungsten oxide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Preparation of TiO2/WO3 composite photocatalysts by the adjustment of the semiconductors' surface charge. / Baia, Lucian; Orbán, Eszter; Fodor, Szilvia; Hampel, Boglárka; Kedves, Endre Zsolt; Saszet, Kata; Székely, István; Karácsonyi, Éva; Réti, Balázs; Berki, Péter; Vulpoi, Adriana; Magyari, Klára; Csavdári, Alexandra; Bolla, Csaba; Coşoveanu, Veronica; Hernádi, K.; Baia, Monica; Dombi, A.; Danciu, Virginia; Kovács, Gábor; Pap, Zsolt.

In: Materials Science in Semiconductor Processing, Vol. 42, 01.02.2016, p. 66-71.

Research output: Contribution to journalArticle

Baia, L, Orbán, E, Fodor, S, Hampel, B, Kedves, EZ, Saszet, K, Székely, I, Karácsonyi, É, Réti, B, Berki, P, Vulpoi, A, Magyari, K, Csavdári, A, Bolla, C, Coşoveanu, V, Hernádi, K, Baia, M, Dombi, A, Danciu, V, Kovács, G & Pap, Z 2016, 'Preparation of TiO2/WO3 composite photocatalysts by the adjustment of the semiconductors' surface charge' Materials Science in Semiconductor Processing, vol. 42, pp. 66-71. https://doi.org/10.1016/j.mssp.2015.08.042
Baia, Lucian ; Orbán, Eszter ; Fodor, Szilvia ; Hampel, Boglárka ; Kedves, Endre Zsolt ; Saszet, Kata ; Székely, István ; Karácsonyi, Éva ; Réti, Balázs ; Berki, Péter ; Vulpoi, Adriana ; Magyari, Klára ; Csavdári, Alexandra ; Bolla, Csaba ; Coşoveanu, Veronica ; Hernádi, K. ; Baia, Monica ; Dombi, A. ; Danciu, Virginia ; Kovács, Gábor ; Pap, Zsolt. / Preparation of TiO2/WO3 composite photocatalysts by the adjustment of the semiconductors' surface charge. In: Materials Science in Semiconductor Processing. 2016 ; Vol. 42. pp. 66-71.
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