Novel heterostructure of CdS nanoparticle/WO3 nanowhisker: Synthesis and photocatalytic properties.

Authors :: Kim, Hyeyoung
Tak, Youngjo
Senthil, Karuppanan
Joo, Jinmyoung
Jeon, Sangmin
Yong, Kijung
Source :: Journal of Vacuum Science & Technology: Part B-Microelectronics & Nanometer Structures; Sep2009, Vol. 27 Issue 5, p2182-2186, 5p, 2 Diagrams, 2 Graphs
Publication Year :: 2009
Abstract: A novel heterostructure of CdS nanoparticles/WO<subscript>3</subscript> nanowhiskers was synthesized using a simple two-step process; thermal evaporation and chemical bath deposition. First, WO<subscript>3</subscript> nanowhiskers (NWs) were grown on a tungsten substrate by thermal evaporation of WO<subscript>3</subscript> powder in a tube furnace at 1050 °C. Sequentially, CdS nanoparticles (NPs) were deposited on WO<subscript>3</subscript> nanowhiskers by chemical bath deposition. CdS nanoparticles modified WO<subscript>3</subscript> nanowhiskers showed enhanced visible light absorption compared to bare WO<subscript>3</subscript> nanowhiskers. The photocatalytic activity was studied by the photodegradation of methylene blue. CdS NP/WO<subscript>3</subscript> NW heterostructures showed remarkably enhanced photodecomposition efficiencies compared to bare WO<subscript>3</subscript> nanowhiskers. [ABSTRACT FROM AUTHOR]

Subjects :: NANOPARTICLES
EVAPORATION (Chemistry)
TUNGSTEN
METHYLENE blue
MOISTURE

Language :: English
ISSN :: 10711023
Volume :: 27
Issue :: 5
Database :: Complementary Index
Journal :: Journal of Vacuum Science & Technology: Part B-Microelectronics & Nanometer Structures
Publication Type :: Academic Journal
Accession number :: 44449822
Full Text :: https://doi.org/10.1116/1.3212913

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