Preparation and characterization of WO{sub 3} nanoparticles, WO{sub 3}/TiO{sub 2} core/shell nanocomposites and PEDOT:PSS/WO{sub 3} composite thin films for photocatalytic and electrochromic applications

Journal Article · Fri Mar 25 04:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4944194· OSTI ID:22590986

Santos, Gustavo dos Lopes; Szűcs, Júlia ^[1]

---

1. Budapest University of Technology and Economics, Department of Inorganic and Analytical Chemistry, Szent Gellért tér 4, Budapest, H-1111 (Hungary)

In this study, monoclinic WO{sub 3} nanoparticles were obtained by thermal decomposition of (NH{sub 4}){sub x}WO{sub 3} in air at 600 °C. On them by atomic layer deposition (ALD) TiO{sub 2} films were deposited, and thus core/shell WO{sub 3}/TiO{sub 2} nanocomposites were prepared. We prepared composites of WO{sub 3} nanoparticles with conductive polymer as PEDOT:PSS, and deposited thin films of them on glass and ITO substrates by spin coating. The formation, morphology, composition and structure of the as-prepared pure and composite nanoparticles, as well thin films, were studied by TEM, SEM-EDX and XRD. The photocatalytic activity of both the WO{sub 3} and core/shell WO{sub 3}/TiO{sub 2} nanoparticles was studied by decomposing methyl orange in aqueous solution under UV light irradiation. Cyclic voltammetry measurements were performed on the composite PEDOT:PSS/WO{sub 3} thin films, and the coloring and bleaching states were studied.

• OSTI ID: 22590986
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1722; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
AQUEOUS SOLUTIONS
ELECTROCHROMISM
IRRADIATION
LAYERS
METHYL ORANGE
MONOCLINIC LATTICES
NANOCOMPOSITES
NANOPARTICLES
PHOTOCATALYSIS
POLYMERS
PYROLYSIS
SCANNING ELECTRON MICROSCOPY
SPIN-ON COATING
THIN FILMS
TITANIUM OXIDES
TRANSMISSION ELECTRON MICROSCOPY
TUNGSTEN OXIDES
ULTRAVIOLET RADIATION
VOLTAMETRY
X-RAY DIFFRACTION