中文摘要：

以醋酸锌、氯化钠、硝酸铋和氢氧化钠为原料,利用水热法合成了含BiOCl为1wt%、2wt%、4wt%、8wt%和16wt%的异质结型BiOCl/ZnO复合光催化剂。采用X射线粉末衍射（XRD）、扫描电镜（SEM）、傅里叶变换红外光谱（FT-IR）、紫外可见漫反射光谱（UV-Vis DRS）和光致发光（PL）谱等系列手段对所制备的光催化剂进行了表征。以紫外光（254 nm）为光源,酸性橙II为光催化反应降解模型,进行光催化活性测试,考察了复合BiOCl对ZnO光催化剂反应活性和稳定性的影响。研究表明,异质结型BiOCl/ZnO复合光催化剂的光催化性能明显优于纯ZnO。当复合BiOCl的含量为4wt%时,光催化活性最佳,为纯ZnO的3.4倍,同时该催化剂在循环使用中具有更好的稳定性。

英文摘要：

A series of BiOCl/ZnO heterojunction photocatalysts with different BiOCl concentrations（wt%=1%,2%,4%,8%,16%） were prepared via hydrothermal synthesis method using Zn（CH3COO）2,NaCl,Bi（NO3）3 and NaOH as raw materials.The prepared pure ZnO and BiOCl/ZnO heterojunction photocatalysts were characterized by X-ray diffraction（XRD）,scanning electron microscopy（SEM）,fourier translation infrared spectroscopy（FT-IR）,UV-Vis diffuse reflectance spectra（UV-Vis DRS）,and Photoluminescence（PL） spectroscopy,respectively.The photocatalytic activity of the prepared catalysts was evaluated by photocatalytic degradation of acid orange II under UV light（λ=254 nm） irradiation.Results showed that the photocatalytic activity and stability of the BiOCl/ZnO heterojunction photocatalysts is much better than that of pure ZnO.The optimal content of BiOCl is found 4wt%.The BiOCl（4%）/ZnO composite catalyst shows about 3.4 times in activity of the pure ZnO.Moreover,it shows good stability in the repeated reaction.