采用氨浸法制备了不同V2O5含量的纳米V2O5/ZnO光催化剂,并用X射线衍射、比表面积测定、透射电镜、X射线光电子能谱和漫反射紫外-可见光谱测定了催化剂的晶型、比表面积、形貌尺寸、表面组成和光谱特征. 以壬基酚聚氧乙烯醚(NPE-10)为模型污染物,分别在紫外光和可见光照射下考察了光催化剂的催化活性. 结果表明,随着V2O5含量的增加, V2O5/ZnO的粒径逐渐减小,比表面积逐渐增大. 与纳米ZnO样品相比, V2O5/ZnO中V 2p的结合能减小,而Zn 2p和O 1s的结合能增大, V2O5/ZnO表面的羟基氧和吸附氧含量增加. n(V)/n(Zn)=2.5%的V2O5/ZnO光催化剂样品的催化活性最高(在紫外光和可见光照射 3 h 后, NPE-10降解率分别约为79%和62%).
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