以醋酸锌、氯化钠、硝酸铋和氧氧化钠为原料,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.
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