Preparation and application of electro-catalytic material Fe2O3-ZnO/C

摘要

Electro-catalysts Fe2O3 compounded by ZnO were prepared by a sol-gel method,which were titled as Fe2O3-ZnO.Electro-catalysts Fe2O3-ZnO loading on the bamboo charcoal was titled as Fe2O3-ZnO/C.The catalytic materials were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM).The obtained catalysts were assembled to three-dimensional electrodes to degradation of chlorinated organic in paper wastewater.And the performance tests show that three-dimensional electrodes have high activities for degradation of chlorinated organic in paper wastewater.There are many factors affecting the electro-catalytic performances of the three-dimensional electrodes.And the orthogonal experiment results show that the optimum operating condition is as follows:the calcination time of the catalysts 2 h,the mass ratio of Fe to Zn 4:1,the voltage 12 V,the mass of the catalytic materials 6 g,the value of pH 9,and the treating time 2.5 h.Under these conditions,the optimum removal efficiency of chlorinated organics in paper wastewater is 47.58%.