摘要
采用简便一步溶剂热法合成了Fe_(3)O_(4)纳米晶修饰磁性石墨烯纳米复合物(GO/Fe_(3)O_(4))。表征了其结构形貌并研究了其对水溶液中阳离子染料亚甲基蓝(MB)的吸附性能。结果表明,以Fe(acac)3为铁源,不添加任何配体,可合成高比表面积的GO/Fe_(3)O_(4)(606.4m^(2)/g);通过π-π堆叠和电荷共同作用,其对水溶液中的MB显示出高效吸附能力,最大平衡吸附容量可达1013.2mg/g。GO/Fe_(3)O_(4)对MB的吸附符合准二级动力学模型和Langmuir等温吸附模型。该材料有望成为一种优良的吸附剂用于水体中阳离子污染物的去除。
A magnetic graphene oxide nanocomposite decorated with Fe_(3)O_(4)nanocrystals(GO/Fe_(3)O_(4))was synthesized via a simple one-step solvothermal method.The structure and morphology,and adsorption performance of GO/Fe_(3)O_(4)for a cationic dye(methylene blue,MB)from aqueous solution was investigated.The results indicated that,without addition of any ligands,GO/Fe_(3)O_(4)with a high specific surface area of 606.4m^(2)/g could be easily synthesized using Fe(acac)3 as the iron source.The resulted GO/Fe_(3)O_(4)demonstrated rather high adsorption capacity of 1013.2mg/g viaπ-πstacking and electrostatic interactions between GO/Fe_(3)O_(4)and MB.The MB adsorption onto MGO fitted well the pseudo-second-order kinetic and Langmuir models,respectively.Such the magnetic graphene nanocomposite could serve as an excellent adsorbent for effective removal of cationic pollutants from water body.
作者
王涵
余海溶
梁婷
程昌敬
Wang Han;Yu Hairong;Liang Ting;Cheng Changjing(College of Chemistry and Environment,Southwest Minzu University,Chengdu 610041)
出处
《化工新型材料》
CAS
CSCD
北大核心
2021年第6期265-270,275,共7页
New Chemical Materials
基金
国家自然科学基金面上项目(21676219)
西南民族大学研究生创新项目(CX2019SZ51)。
