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Book synopsis

Nanocrystalline anatase phase titanium oxide §converted from ammonium oxofluorotitanate by thermal §treatment was developed and a large bandgap §reduction due to the co-doping of high §concentrations of fluorine and nitrogen. It is 1.3 §times the photocatalytic activities of P-25 due to §the visible region usage of Hg lamp light source. §The 11.2 times the visible photocatalytic activities §of P-25 using blue light-emitting diode as the light §source is obtained. The heterostructure of zinc §selenide/titanium oxide and zinc sulfide/titanium §oxide were prepared by metal-organic chemical vapor §deposition. The energy bandgap of zinc sulfide is §much larger than that of titanium oxide and can act §as a window for titanium oxide. It would not hinder §titanium oxide absorption and preserve the role of §fluorine and nitrogen co-doping. The energy bandgap §of zinc selenide is near the maximum intensity of §solar spectrum and acts as a sensitizer of titanium §oxide. Their photocatalytic activities are further §improved to 2.0 and 1.5 times higher than that of §commercial P-25, respectively.

Book details

• Full title: Heterojunctions on Titanium Oxide Nano Particles
• Subtitle: Heterojunctions of Zinc Selenide and Zinc Sulfide on Titanium Oxide Nano Particles and Their Photocatalyses
• Author: Tsung-Hsiang Shih
• Language: English
• Binding: Paperback
• Number of pages: 180
• EAN: 9783639126600
• ID: 06821433
• Publisher: VDM Verlag Dr. Müller
• Weight: 284 g
• Dimensions: 220 × 150 × 11 mm
• Published: 2009

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