磁性石墨烯纳米材料的制备及其对水中活性艳红染料的吸附研究  

A Method to Produce Magnetic Graphene Acid-coated Fe_3O_4 Nanoparticles and the Study of Removal of Reactive Brilliant Red from Aqueous Solution

作　　者：唐祝兴[1] 梅琼[1] 闫帅[1] 王冬雪[1] 

机构地区：[1]沈阳理工大学环境与化学工程学院,沈阳110159

出　　处：《沈阳理工大学学报》2016年第4期71-75,共5页Journal of Shenyang Ligong University

基　　金：辽宁省自然科学基金资助项目(2013020088);沈阳理工大学大学生创新创业训练计划项目(14hh003)

摘　　要：以Fe_3SO_4·7H_2O和石墨烯为主要原料合成Fe_3O_4@GO纳米材料。使用扫描电子显微镜、透射电子显微镜和X射线衍射仪对合成样品进行表征。研究pH值、溶液浓度、震荡时间等单因素对吸附性能的影响。研究结果表明,在温度为298K、pH值为4、震荡时间为1h、溶液浓度为45mg/L的最优条件下,饱和吸附量超过69mg/g。吸附符合准二级动力学模型。Magnetic Graphene Acid-coated Fe304 nanoparticles were successfully synthe- sized by Fe3SO4·7H20 and graphene. The resulting products are characterized by scanning electron microscope（ SEM）, transmission electron microscope （TEM）and X-ray diffraction （XRD）. Various factors affecting the uptake behaveior such as pH, contact time and solu- tion concentration were studied. The results showed that absorption can be up to 69mg/g at pH of 4,temperature of 298K,contact time for lh and solution concentration of 45mg/L. The adsorption process of dyes can be better described by the pseudo-second-order model than the pseudo-first-order model.

关 键 词：磁性石墨烯 活性艳红 吸附 表征 

分 类 号：O661.1[理学—分析化学]