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以Bi(NO3)3和Na2Mo O4为原料,偕胺肟纤维作为配体,采用液相法合成钼酸铋/偕胺肟纤维(Bi2Mo O6/AOCF),通过X射线粉末衍射(XRD)、扫描电子显微镜(SEM)、能谱(EDS)对样品进行了表征分析。结果显示,颗粒状的Bi2Mo O6均匀分布在纤维表面,并以配位键的形式与纤维结合。以罗丹明B(Rh B)为模拟污染物来考察Bi2Mo O6/AOCF的光催化活性,实验表明,Bi2Mo O6/AOCF有着很好的光催化活性,并且在酸性条件下的催化活性更好。催化剂对活性黄、亚甲基蓝和甲基橙也表现出较好的光催化活性,且重复使用5次后对Rh B的降解率仍可以达到91.4%。光催化反应过程符合一级反应动力学。
Bismuth molybdate / amidoxime fiber (Bi2MoO6 / AOCF) was synthesized by liquid phase method using Bi (NO3) 3 and Na2MoO4 as raw materials and amidoxime fiber as the ligand. XRD, Electron microscopy (SEM), energy dispersive spectroscopy (EDS) were used to characterize the samples. The results showed that the granular Bi2MoO6 uniformly distributed on the surface of the fiber and coordinated with the fiber in the form of coordinate bond. The photocatalytic activity of Bi2MoO6 / AOCF was investigated with rhodamine B (RhB) as a model pollutant. The experimental results show that Bi2MoO6 / AOCF has good photocatalytic activity and better catalytic activity under acidic conditions. The catalysts showed good photocatalytic activity for Reactive Yellow, Methylene Blue and Methyl Orange, and the degradation rate of Rh B could reach 91.4% after 5 times repeated use. The photocatalytic reaction conforms to the first order reaction kinetics.