Porous ZnO hollow microspheres were successfully deposited on ceramic base by chemical deposition method.The phase and micro-nano structure of the obtained ZnO powers were characterized by X-ray diffraction,scanning e...Porous ZnO hollow microspheres were successfully deposited on ceramic base by chemical deposition method.The phase and micro-nano structure of the obtained ZnO powers were characterized by X-ray diffraction,scanning electron microscopy and transmission electron microscopy.Photocatalytic property,Cr^(6+)adsorption performance and reuseableability of porous ZnO hollow microspheres on ceramic base were measured in detail.The results showed that the photocatalytic degradation rate of the obtained samples to rhodamine B solution could reach 96.30%after 5 h UV irradiation and its Cr^(6+)_adsorption capacity was 88.37 mg/g after 24 h.Besides,the obtained ZnO also have excellent reusability,the degradation rate for rhodamine B solution could still reach 94.49%and Cr^(6+) adsorption capacity was66 mg/g after used 3 times.The above application results further demonstrated that the obtained products are expected to find wide applications in treating tannery wastewater.展开更多
基金supported by Science and Technology Project of Xi'an City(CXY1430(1))Scientific Research Fund Project of Shaanxi University of Science and Technology(BJ13-23)Scientific Research Innovation Group of Shaanxi University of Science and Technology(TD12-03)
文摘Porous ZnO hollow microspheres were successfully deposited on ceramic base by chemical deposition method.The phase and micro-nano structure of the obtained ZnO powers were characterized by X-ray diffraction,scanning electron microscopy and transmission electron microscopy.Photocatalytic property,Cr^(6+)adsorption performance and reuseableability of porous ZnO hollow microspheres on ceramic base were measured in detail.The results showed that the photocatalytic degradation rate of the obtained samples to rhodamine B solution could reach 96.30%after 5 h UV irradiation and its Cr^(6+)_adsorption capacity was 88.37 mg/g after 24 h.Besides,the obtained ZnO also have excellent reusability,the degradation rate for rhodamine B solution could still reach 94.49%and Cr^(6+) adsorption capacity was66 mg/g after used 3 times.The above application results further demonstrated that the obtained products are expected to find wide applications in treating tannery wastewater.
