摘要
采用共沉淀法制备了Zn-Al层状双氢氧化物(LDHs)包覆BiOCl微球的复合光催化材料。利用X射线衍射、傅里叶红外光谱、紫外可见漫反射、扫描电镜等对样品的形貌、物相组成进行了表征。并以甲基橙为模拟污染物,研究了所制备的样品在紫外光以及可见光下的光催化性能。实验结果表明,BiOCl/Zn-Al LDHs复合物的光催化活性优于单一的BiOCl和Zn-Al LDHs,当Zn-Al LDHs质量分数为19.5%时的BiOCl/Zn-Al LDHs复合光催化材料表现出了最强的催化活性,在紫外光和可见光照射下对甲基橙的降解率分别为94.4%和28%。
BiOCl/Zn-Al layered double hydroxides(LDHs)composite photocatalysts assembled from BiOCl microspheres and Zn-Al LDH nanosheets were synthesized by coprecipitation method.X-ray diffraction,Fourier transmission infrared spectroscory,UV-vis diffuse reflectance spectroscopy,and scanning eletron microscope confirmed the formation of the BiOCl/Zn-Al LDHs composites.And the photocatalytic degradation activity for methyl orange(MO)of the samples was studied under UV and visible light.The results showed that the photocatalytic performance of BiOCl/Zn-Al LDHs composites were higher than single BiOCl and Zn-Al LDHs.When the LDHs content was19.5%,the BiOCl/Zn-Al LDHs composite showed the highest photocatalytic activity,and the degradation rate of MO was94.4%and28%under UV-light and visible light,respectively.
作者
郭馨馨
张希清
Guo Xinxin;Zhang Xiqing(School of Materials Science and Engineering,Shijiazhuang Tiedao University,Shijiazhuang050043,China)
出处
《石家庄铁道大学学报（自然科学版）》
2018年第4期88-95,共8页
Journal of Shijiazhuang Tiedao University(Natural Science Edition)
