Preparation and application of electro-catalytic material Fe2O3-ZnO/C
来源期刊：中南大学学报(英文版)2013年第6期
论文作者：ZUO Dan(左丹) ZHANG Ling(张玲) TONG Hai-xia(童海霞) LI Dan(李丹) ZENG Bin(曾彬) QIAO Hang(乔航)
文章页码：1496 - 1501
Key words：electro-catalyst; Fe2O3-ZnO; bamboo charcoal; chlorinated organic; paper wastewater
Abstract: 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%.
ZUO Dan(左丹), ZHANG Ling(张玲), TONG Hai-xia(童海霞), LI Dan(李丹), ZENG Bin(曾彬), QIAO Hang(乔航)
(College of Chemical and Bioengineering, Changsha University of Science & Technology, Changsha 410114, China)
Abstract: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%.
Key words:electro-catalyst; Fe2O3-ZnO; bamboo charcoal; chlorinated organic; paper wastewater
