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Novel α-Fe 2 O 3 modified ZnO flower-like microstructures were successfully prepared via a simple and rapid solution route with different α-Fe 2 O 3 contents. The products were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), UV–vis diffuse reflectance spectra (UV–vis DRS) and N 2 adsorption/desorption. Photocatalytic activity of the as-prepared α-Fe 2 O 3 /ZnO composites was evaluated by degradation of pentachlorophenol (PCP) under simulated solar light. The results indicated that α-Fe 2 O 3 /ZnO composites showed higher photocatalytic activity than pure ZnO. The optimum photocatalytic activity of α-Fe 2 O 3 /ZnO composite with molar ratio of 1:7 was nearly 2 times as high as that of pure ZnO. The remarkably increased performance of α-Fe 2 O 3 /ZnO was mainly attributed to the synergistic effect between α-Fe 2 O 3 and ZnO. In addition, the α-Fe 2 O 3 /ZnO composites also showed excellent circulation stability. [ABSTRACT FROM AUTHOR]

A series of α-Fe 2 O 3 /ZnO composites with different α-Fe 2 O 3 contents were successfully prepared by a simple and rapid method. The products were characterized by XRD, FESEM and UV–vis DRS. Photocatalytic activity of the as-prepared α-Fe 2 O 3 /ZnO composites was evaluated by degradation of persistent organic pollutant pentachlorophenol (PCP) in aqueous solution. Compared with pure ZnO, α-Fe 2 O 3 /ZnO composites show higher photocatalytic activity under UV–vis light irradiation. PCP is almost completely degraded by α-Fe 2 O 3 /ZnO composite with molar ratio 1:5 within 4 h. [ABSTRACT FROM AUTHOR]