摘要
用化学共沉淀法和原位乳液聚合法分别制备了钴铁氧体/膨胀石墨复合微粒(CF/EG)和钴铁氧体/膨胀石墨/聚吡咯复合物(CF/EG/PPy)。用现代分析技术表征了样品的组成、结构、形貌、电-磁性能和油水分离性能。结果表明,CF粒子已填嵌入到膨胀石墨的层间,CF/EG/PPy复合物的核(CF/EG)和壳(PPy)之间存在着一定的相互作用,样品的油水分离效果与膨胀石墨的层间空隙成正比,其次序为:EG>CF/EG>CF/EG/PPy。磁性的CF/EG微粒回收容易,重复使用性能优良,循环5次的效率不低于90%。
Cobalt ferrite/expanded graphite complex particles （CF/EG） and cobalt ferrite/expanded graphite/polypyrrole composites （CF/EG/PPy） were prepared by chemical co-precipitation method and in-situ emulsion polymerization, respectively. The composition, structures, morphology, electrical and magnetic properties, and oil/water separation property of samples were characterized by means of modern analytical techniques. The results indicated that CF particles embedded in layers of EG, and there was some interaction between the core （CF/EG） and shell （PPy） in the CF/EG/PPy composites. The oil/water separation effect of samples was proportional to the spacing of layers in EG, their sequence was EG〉CF/EG〉CF/EG/PPy. The CF/EG complex particles with magnetism could be easily recovered and had good performance for repeated use. And its efficiency by cycling of five times was not less than 90%.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2013年第3期479-485,共7页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金(No.21071125)
浙江省科技计划重大专项(No.2010C11053)资助项目
关键词
钴铁氧体
膨胀石墨
聚吡咯
电-磁性能
油水分离
cobalt ferrites
expanded graphite
polypyrrole
electrical and magnetic properties
oil/water separation
