alpha-Fe2O3 modified ZnO flower-like microstructures with enhanced photocatalytic performance for pentachlorophenol degradation

作者：Xie Juan; Zhang Lei; Li Meixia; Hao Yongjing; Lian Yiwei; Li Zhen; Wei Yu^*

来源：Ceramics International, 2015, 41(8): 9420-9425.

DOI：10.1016/j.ceramint.2015.03.320

• alpha-Fe2O3
• Composite materials
• Photocatalysis
• Pentachlorophenol
• ZnO

Novel alpha-Fe2O3 modified ZnO flower-like microstructures were successfully prepared via a simple and rapid solution route with different alpha-Fe2O3 contents. The products were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (I-ESEM), UV-vis diffuse reflectance spectra (UV-vis DRS) and N-2 adsorption/desorption. Photocatalytic activity of the as-prepared alpha-Fe2O3/ZnO composites was evaluated by degradation of pentachlorophenol (PCP) under simulated solar light. The results indicated that alpha-Fe2O3/ZnO composites showed higher photocatalytic activity than pure ZnO. The optimum photocatalytic activity of alpha-Fe2O3/ZnO composite with molar ratio of 1:7 was nearly 2 times as high as that of pure ZnO. The remarkably increased performance of alpha-Fe2O3/ZnO was mainly attributed to the synergistic effect between alpha-Fe2O3 and ZnO. In addition, the alpha-Fe2O3/ZnO composites also showed excellent circulation stability.

• 出版日期2015-9
• 单位河北师范大学; 河北地质大学; 河北工程大学