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A series of magnetically recoverable nanocomposite photocatalyst was obtained by introducing hybrid oxide TiO2-FexOy onto the surface of Attapulgite (a kind of natural clay) via in-situ deposit technique (marked as ATT-TiO2-FexOy).The molar ratio of r=nTi/(nTi+nFe) was adjusted to series of proportion (0.0、0.25、0.33、0.50、 0.67、 0.75、 1.0) in order to achieve the best photocatalyst.