Ultraviolet Light-Induced Surface Changes of Tungsten Oxide in Air: Combined Scanning Transmission Electron Microscopy and X-ray Photoelectron Spectroscopy Analysis

Scanning transmission electron microscopy (STEM) and X-ray photoelectron spectroscopy analyses were combined to clarify the ultraviolet light-induced surface changes of WO in air. Identical-location STEM (IL-STEM) analysis showed that the WO particle surface was covered with an amorphous thin film a...

Full description

Saved in:

Bibliographic Details
Published in:	Nanomaterials (Basel, Switzerland) Vol. 14; no. 18; p. 1486
Main Authors:	Nakagawa, Yuki, Shiratsuchi, Yasuhiro, Shibayama, Tamaki, Takeguchi, Masaki
Format:	Journal Article
Language:	English
Published:	Switzerland MDPI AG 13-09-2024 MDPI
Subjects:	Catalysis Contact angle Dielectric films Electron microscopy Humidity hydrocarbon decomposition Hydrocarbons identical-location scanning transmission electron microscopy Irradiation Light Nanoparticles Oxidation Photocatalysis Photoelectron spectroscopy Photoelectrons Radiation Scanning electron microscopy Scanning transmission electron microscopy Spectroscopic analysis Spectroscopy Spectrum analysis Thin films Transmission electron microscopy Tungsten Tungsten compounds Tungsten oxide Tungsten oxides ultraviolet light Ultraviolet radiation Ultraviolet spectroscopy X ray photoelectron spectroscopy X-ray spectroscopy X-rays Zinc oxides Japan tungsten oxide identical-location scanning transmission electron microscopy photocatalysis X-ray photoelectron spectroscopy ultraviolet light hydrocarbon decomposition
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Scanning transmission electron microscopy (STEM) and X-ray photoelectron spectroscopy analyses were combined to clarify the ultraviolet light-induced surface changes of WO in air. Identical-location STEM (IL-STEM) analysis showed that the WO particle surface was covered with an amorphous thin film after ultraviolet irradiation in air. X-ray photoelectron spectroscopy analysis showed that hydrocarbon decomposition and the formation of carboxyl/hydroxyl species occurred. These results suggested that the amorphous thin films consisted of photocatalytic oxidative species of hydrocarbon. The IL-STEM analysis could detect small light-induced changes. This technique will be useful for the microscopic characterization of photocatalysis or photoinduced hydrophilic conversion.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2079-4991 2079-4991
DOI:	10.3390/nano14181486