Visible light-induced strong oxidation strong reduction photo catalyst

A visible light-induced strong oxidation strong reduction photo catalyst comprises: a first semiconductor having a band gap between the valence band and the conduction band thereof of 2.0 eV to 3.0 eV, and having a negative value for the conduction band thereof relative to H2/H2O and a difference be...

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Bibliographische Detailangaben
Hauptverfasser:	WANG, CHIH-KUANG, LIAW, JIUNN-WOEI, HSU, FU-YIN, CHUEH, SHANANG
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEMICONDUCTOR DEVICES THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A visible light-induced strong oxidation strong reduction photo catalyst comprises: a first semiconductor having a band gap between the valence band and the conduction band thereof of 2.0 eV to 3.0 eV, and having a negative value for the conduction band thereof relative to H2/H2O and a difference between the conduction band thereof and H2/H2O of no less than 0.2 eV; and a second semiconductor compounded with the first semiconductor and having a band gap between the valence band and the conduction band thereof of 2.0 eV to 3.0 eV and a positive value for the valence band thereof relative to H2/H2O and a difference between the valence band thereof and H2/H2O of no less than 2.8 eV, thereby forming a highly active composite visible-light photo catalyst.