Position: Home > Articles > The Study on the Effect of Magnetic Fe_3O_4@ Diatomite on Its Catalytic Performance
Journal of Hebei Normal University of Science & Technology
2019
(4)
66-72
Fe_3O_4@硅藻土磁性纳米粉体的超声催化性能
作 者：
王秋艺;王会心;鲁勖琳;张宏伟;宋爱君;张志伟
单 位：
河北科技师范学院化学工程学院
关键词：
磁性纳米粉体;超声催化性能;类芬顿体系;纳米Fe_3O_4;硅藻土
摘 要：
为确定不同反应条件对亚甲基蓝去除率的影响,采用共沉淀法制备了磁性Fe_3O_4纳米粉体催化剂,并将Fe_3O_4纳米粉体负载到多孔性的硅藻土上,即Fe_3O_4@硅藻土(Diatomite-Fe_3O_4,D-Fe_3O_4),采用X射线衍射仪(XRD)和扫描电子显微镜(SEM)对催化剂粉体的物相和形貌进行了表征。结果表明,Fe_3O_4纳米粉体均匀的负载在多孔硅藻土上,D-Fe_3O_4对亚甲基蓝的去除率可达到94.2%,与相同质量的纯Fe_3O_4纳米粉体相比,去除率提高了31.6个百分点,并且可以实现催化剂的回收利用。
译 名：
The Study on the Effect of Magnetic Fe_3O_4@ Diatomite on Its Catalytic Performance
作 者：
WANG Qiuyi;WANG Huixin;LU Xulin;ZHANG Hongwei;SONG Aijun;ZHANG Zhiwei;College of Chemical Engineering, Hebei Normal University of Science & Technology;
关键词：
magnetic nano powder;;ultrasound-assisted method;;nanometer Fe_3O_4;;Fenton-like system;;diatomite
摘 要：
Magnetic Fe_3O_4 nano powder catalyst was prepared by coprecipitation method, and Fe_3O_4 nano powder was loaded on porous diatomite, namely Fe_3O_4@ diatomite(diatomite-Fe_3O_4, D-Fe_3O_4). X-ray diffraction(XRD) and scanning electron microscope(SEM) were used to characterize the phase and morphology of the catalyst powder. The results show that the degradation rate of methylene blue by D-Fe_3O_4 can reach 94.2% when loaded on porous diatomite uniformly. Compared with pure Fe_3O_4 nano powder of the same quality, the degradation rate is increased by 31.6%, and the recovery of catalyst can be realized.
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