Abstract

In this paper MnWO4 nanoparticles were prepared via a sonochemical method based on the reaction between manganese salt and Na2WO4·2H2O in water. Moreover, this method is free from any surfactant and organic solvents. The structural, morphological and optical properties of as-obtained products were characterized by techniques such as XRD, EDS, SEM, and UV–Visible. The magnetic properties of as-prepared MnWO4 nanoparticles were also investigated with vibrating sample magnetometer (VSM). To evaluate the photocatalysts properties of nanocrystalline manganese tungstate, the photocatalytic degradation of methyl orange under ultraviolet light irradiation was carried out. The new synthetic method presented in this paper has potential applications to fabricate other metal tungstates (MWO4) materials.

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