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Fe3O4纳米粉体催化剂,并将Fe3O4纳米粉体负载到多孔性的硅藻土上,即Fe3O4@硅藻土(Diatomite-Fe3O4,D-Fe3O4),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,Fe3O4纳米粉体均匀的负载在多孔硅藻土上,D-Fe3O4对亚甲基蓝的去除率可达到94.2%,与相同质量的纯Fe3O4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。
Magnetic Fe3O4 nano powder catalyst was prepared by coprecipitation method,and Fe3O4 nano powder was loaded on porous diatomite,namely Fe3O4@diatomite(diatomite-Fe3O4,D-Fe3O4).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-Fe3O4 can reach 94.2%when loaded on porous diatomite uniformly.Compared with pure Fe3O4 nano powder of the same quality,the degradation rate is increased by 31.6%,and the recovery of catalyst can be realized.
作者
王秋艺
王会心
鲁勖琳
张宏伟
宋爱君
张志伟
WANG Qiuyi;WANG Huixin;LU Xulin;ZHANG Hongwei;SONG Aijun;ZHANG Zhiwei(College of Chemical Engineering,Hebei Normal University of Science&Technology,Qinhuangdao Hebei,066600,China)
出处
《河北科技师范学院学报》
CAS
2019年第4期66-72,共7页
Journal of Hebei Normal University of Science & Technology
基金
国家重点实验室开发课题(课题编号:2016003)
河北省“三三三人才工程”人才培养资助项目(项目编号:A201901059)
