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Processing and photocatalyst activity of ion-doped V2O5 powders by Xu Liu; Shihua Ding; Tianxiu Song; Xufeng Jiang; Xiaosong Peng is a Materials Science article available to read on EtoBox.

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The nanopowders of V 2 O 5 and Mn-doped V 2 O 5 were prepared by the sol-gel processing and characterized by X-ray diffraction. The photoactivity of the prepared catalyst V 2 O 5 and Mn-doped V 2 O 5 under UV irradiation were evaluated by degradation of methyl orange solution. The effect of pH of precursor for V 2 O 5 and doping amount of Mn ions on photocatalytic activity were investigated. The pH value had affected the species of precursor and the crystal morphology. The minimum particle size could approach to 26.5 nm. The result showed the degradation rate of methyl orange could approach 62% at pH = 6. While doped with Mn ions, Mn dopant can improve the photocatalytic activity of V 2 O 5 powder. The appearance of the second phase Mn(VO 3 ) 2 is also beneficial to increase photocatalytic activity.

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Author

Xu Liu; Shihua Ding; Tianxiu Song; Xufeng Jiang; Xiaosong Peng

Publisher

Elsevier BV

Published

2015

Language

EN

Field

Materials Science (Physical Sciences)