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Magnetically separable Ag3PO4/Fe3O4composite : preparation and visible-light photocatalysis

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Linnaeus ECO-TECH 2016 Kalmar, Sweden, November 21-23, 2016

247

MAGNETICALLY SEPARABLE

Ag

3

PO

4

/Fe

3

O

4

COMPOSITE : PREPARATION

AND VISIBLE-LIGHT PHOTOCATALYSIS

Sawanya Laohaprapanon

Sheng-jie you

Chung Yuan University

Taiwan

Abstract

In this study, magnetic Ag3PO4/Fe3O4 visible-light photocatalyst was successfully prepared by ionic

exchange followed by coating of Fe3O4 nanopowder on the crystalline Ag3PO4 particles. Powder

X-ray diffraction (XRD) and field emission scanning electronic microscope (FE-SEM) were used to characterize the powder products and the photocatalytic activity of Ag3PO4/Fe3O4 was evaluated by

decolorization of methylene blue (MB), as a model organic pollutant, under visible-light irradiation. The photocatalytic results indicate that the as-prepared Ag3PO4/Fe3O4 particles were efficient to

degrade organic pollutants under visible light and the photocatalyst itself could be easily separated from the aqueuse solution using external magntic field. This work shows a great potential of Ag3PO4/Fe3O4 composite particles for environmental purification of organic pollutants.

Keywords

Magnetic separation; Visible-light photocatalysis; Silver phosphate, Ag3PO4/Fe3O4

References

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