One-step combustion synthesis of CoFe2O4–graphene hybrid materialsfor photodegradation of methylene blue
One-step combustion synthesis of CoFe2O4–graphene hybrid materialsfor photodegradation of methylene blue
复制标题
DOI：
10.1016/j.matlet.2013.09.088
复制
发表时间：
2013-12
影响因子：
3
通讯作者：
Dafeng Zhang;Xipeng Pu;Yanyan Gao;Changhua Su;Hong Li;Huaiyong Li;Wenxian Hang
中科院分区：
文献类型：
--
作者：
Dafeng Zhang;Xipeng Pu;Yanyan Gao;Changhua Su;Hong Li;Huaiyong Li;Wenxian Hang
采用一步燃烧法制备了CoFe2O4-石墨烯杂化材料(CFGHs)。用X射线衍射仪、透射电子显微镜、拉曼光谱、振动样品磁强计和光致发光等手段对样品的结构、形貌和磁性能进行了表征。CFGHs的形貌分析表明，CoFe2O4纳米颗粒被锚定在石墨烯表面。燃烧合成后，氧化石墨烯不是被氧化，而是被还原。CFHs表现出铁磁行为，可以被磁分离。与纯CoFe2O4相比，CFGHs具有更好的光降解性能。对光降解性能的增强机理进行了详细的讨论。
CoFe2O4–graphene hybrid materials (CFGHs) were synthesized by a simple one-step combustion method. The structures, morphologies and magnetic properties were characterized by X-ray diffraction, transmission electron microscopy, Raman spectrometry, vibrating sample magnetometry, and photoluminescence. The morphologies of CFGHs show that CoFe2O4nanoparticles were anchored onto the surface of graphene sheets. After the combustion synthesis, graphene oxide sheets were not oxidized, but reduced. CFGHs exhibit ferromagnetic behaviors and can be magnetically separated. Compared with pure CoFe2O4, CFGHs show improved photodegradation performance. The mechanism of enhancement in photodegradation performance is discussed in detail.