Preparation and Photocatalytic Performance of Nanostructural WO₃ Induced by Ion in Hydrothermal Synthesis

Abstract:

WO₃ nanocrystals have been successfully synthesized via an ion induced auxiliary hydrothermal method. The experiment products were characterized by powder X-ray diffraction (XRD) and the Photocatalytic oxidation performance of products were characterized by using the photocatalytic oxidation of methyl orange under the condition of hydrogen peroxide. The optimal amount of catalyst required for catalytic oxidation experiments and the concentration of methyl orange (MO) were determined. The experimental results indicated that with he enhancement of metallicity in alkali main group, the photocatalytic activity of the WO₃ induced by alkali metal cation increased; The SO₄^2- has higher induce catalytic activity than Cl- when the type and quantity of cation are the same; however, the ion induction on the impact of surface area is quite different, and it founded that they comply with this regular pattern, that is Na+> K+> Li+ and SO₄^2-> Cl-.

• Periodical: Advanced Materials Research (Volume 580)
• Pages: 535-538
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.580.535
• Online since: October 2012
• Authors: Bin Yu, Hai Feng Chen, Ting Yan
• Keywords: Ion Induction, Methyl Orange, Photocatalytic Oxidation, WO₃

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