硅藻土负载纳米Fe_2O_3复合材料的光催化性能研究

Study on Photocatalytic Property of Diatomite Coated with nano Fe_2O_3 Composite Materials

本研究选择提纯后的硅藻土充当Fenton催化剂基础载体,采用水解沉淀法将纳米Fe_2O_3颗粒负载在硅藻壳体表面制备得到一种新型的非均相Fenton复合材料,以罗丹明B作为染料废水检验催化剂的催化性能,研究结果表明,在光照条件下加入硅藻土负载Fe_2O_3催化剂和H_2O_2,反应120 min后,罗丹明B的脱色率可达到98.33%。

In the research, the diatomite purified was chosen as a carrier of heterogeneous Fenton catalytic material. The novel heterogeneous Fenton composite materials had been synthesized through Fe_2O_3 nanoparticles loaded on the diatom shell surface. The catalyst was tested the catalytic properties of the catalyst through discoloring Rhodamine B dye from wastewater. The results showed that the decolorization rate of Rhodamine B had reached 98.33% after the reaction 120 min when diatomite loaded Fe_2O_3 catalyst and H_2O_2 were added with the light.