Application of Hybrid Modified PAN Nanofibrous Membrane Fe Complexes with Adsorption-photocatalysis Bifunctions for Removal of Organic Dye from Water

Polyacrylonitrile nanofibrous (n-PAN) membrane were prepared by electrospun method and modified with different molar ratios of hydroxylamine(HA) and/or hydrazine hydrate(HH). The resulting modified n-PANs were then coordinated with Fe3+ ions to fabricate five modified n-PAN Fe complexes with different surface structures. The effect of HH addition on the complex preparation and its removal performance of azo dye Reactive red 195 from water were investigated and compared. The results indicated that the modified n-PAN fibrous diameter and Fe content of its Fe complex decreased as the addition of HH increased. This lead to a better adsorption and photocatalytic degradation capacities of three hybrid modified n-PAN Fe complexes. Thus, the rapid removal of dye molecules from aqueous solution was obtained through combination of both functions of the complexes mentioned above.