The enhancement of WO3-catalyzed photodegradation of organic substances utilizing the redox cycle of copper ions

• Published in: Applied catalysis. B, Environmental Vol. 84; no. 1-2; pp. 42 - 47
• Main Authors: Arai, Takeo, Yanagida, Masatoshi, Konishi, Yoshinari, Ikura, Ami, Iwasaki, Yasukazu, Sugihara, Hideki, Sayama, Kazuhiro
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 25.10.2008; Elsevier
• Subjects: Catalysis; Chemistry; Copper redox; Exact sciences and technology; General and physical chemistry; Photochemistry; Photodegradation; Physical chemistry of induced reactions (with radiations, particles and ultrasonics); Substances; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Tungsten oxide; Photodegradation; Tungsten oxide; Substances; Copper redox; Heterogeneous catalysis; Catalytic reaction; Copper ion; Transition element compounds; Transition metal; Copper; Photochemical degradation; Environmental protection

WO3 is a visible-light-responsive photocatalyst and an n-type semiconductor photocatalyst, but its photocatalytic activity toward organic substances is low. We utilized several transition metal ions as redox mediators in attempts to improve the photoactivity of WO3, and a drastic improvement was obs...