Fe_(3)O_(4)/GO/CeO_(2)复合纳米材料的制备及其对水中亚甲基蓝吸附性能研究  

Preparation of Fe_(3)O_(4)/GO/CeO_(2) composite nanomaterials and their adsorption properties for methylene blue in water

作　　者：龙星宇 韦万丽[1] 谭兴力 王金兰 尚越 Long Xingyu;Wei Wanli;Tan Xingli;Wang Jinlan;Shang Yue(School of Chemistry and Materials Science,Guizhou Normal University,Guiyang 550025;College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005)

机构地区：[1]贵州师范大学化学与材料科学学院,贵阳550025 [2]厦门大学化学化工学院,厦门361005

出　　处：《化工新型材料》2023年第1期248-253,共6页New Chemical Materials

基　　金：贵州省基础研究计划(科学技术基金)(黔科合基础-ZK[2021]一般073);贵州师范大学2017年博士科研启动项目(GZNUD[2017]4号);大学生科研训练计划项目(DK2019A021);贵州师范大学“国家级、省级大学生创新创业训练计划”项目([2020]594号)。

摘　　要：首先通过溶剂热法制备Fe_(3)O_(4)纳米颗粒,再通过离子强度调控法制备磁性氧化石墨烯(Fe_(3)O_(4)/GO),最后用共沉淀法制得Fe_(3)O_(4)/GO/CeO_(2)复合纳米材料,并用扫描电镜(SEM)、能量色散X射线光谱(EDX)、X射线衍射(XRD)等技术对其进行表征。结果表明:Fe_(3)O_(4)纳米颗粒与CeO_(2)纳米颗粒均匀地分散在GO上。研究了Fe_(3)O_(4)/GO/CeO_(2)复合纳米材料对亚甲基蓝染料的吸附性能,并考察了不同因素对吸附性能的影响。由于Fe_(3)O_(4)纳米颗粒有着磁性的性质,易回收分离,具有再生利用性能。吸附实验结果表明:Fe_(3)O_(4)/GO/CeO_(2)复合纳米材料循环5次后对亚甲基蓝的吸附率仍在95%以上。因此,Fe_(3)O_(4)/GO/CeO_(2)复合纳米材料是一种新型优良的吸附剂材料,被应用于模拟染料废水中的亚甲基蓝去除研究。Firstly, Fe_(3)O_(4)nanoparticles were prepared by solvothermal method, and then magnetic graphene oxide(Fe_(3)O_(4)/GO) was obtained by ionic strength control method.Finally, Fe_(3)O_(4)/GO/CeO_(2)composite nanomaterials were prepared by co-precipitation method, and were further characterized by SEM,EDX,XRD and so on.The results showed that Fe_(3)O_(4)nanoparticles and CeO_(2)nanoparticles were uniformly dispersed on GO.The adsorption properties of Fe_(3)O_(4)/GO/CeO_(2)composite nanomaterials for methylene blue dyes were studied, and the effects of different factors on the adsorption properties were also investigated.Due to the magnetic properties of Fe_(3)O_(4)nanoparticles, it was easy to be recovered and separated, which made the composite materials have recycling properties.The results revealed that the adsorption rate of Fe_(3)O_(4)/GO/CeO_(2)composite nanomaterials for methylene blue retained above 95% after 5 cycles.Therefore, Fe_(3)O_(4)/GO/CeO_(2)composite nanomaterial, as a new excellent adsorbent material, could be applied in the area of methylene blue removal from simulated dye wastewater.

关 键 词：Fe_(3)O_(4)/GO/CeO_(2)复合纳米材料 吸附 再生利用 亚甲基蓝 染料废水 

分 类 号：O656.9[理学—分析化学] X52[理学—化学]