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Synthesis of MnWO4 Nano-Particles by Low-Temperature Molten Salt Method

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Abstract:

Manganese tungstate nano-particles were successfully synthesized at low temperatures by molten salt method, and characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and ultraviolet visible spectra techniques (UV-vis), respectively. The effects of calcining temperatures and salt quantity on the crystallization and development of MnWO4 crystallites were studied. Experimental results showed that the well-crystallized MnWO4 nano-particles with about 40 nm in diameter could be prepared at 270°C with 3:1 mass ratio of the salt to MnWO4 precursor for a holding time of 4 h. XRD analysis evidenced that the product was a pure monoclinic phase of MnWO4 with wolframite structure. UV-vis spectrum revealed that MnWO4 nano-particles had strong light absorption properties in both ultraviolet and visible light region.

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Periodical:

Advanced Materials Research (Volumes 284-286)

Pages:

722-725

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.284-286.722

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Online since:

July 2011

Authors:

Zu Wei Song, Xu Yun Li, Jin Sheng Shi

Keywords:

Low-Temperature, MnWO4 Nano-Particles, Molten Salt Method

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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