中文摘要：

采用热分解法制备了一种功能性的四氧化三铁/碳纳米管复合材料,磁性四氧化三铁纳米粒子均匀地修饰在多壁碳纳米管表面,而且无团聚现象出现.同时由于复合材料具有超顺磁性,通过外加磁场可以很简单地将其从溶液中分离出来.将该复合材料作为吸附剂用于去除放射性废水中的铜离子,复合材料的吸附作用不仅对时间有很强的依赖性,而且能够高效地去除铜离子,并能通过外加磁场实现快速分离.这种四氧化三铁/碳纳米管复合材料有望成为一种很好的用于放射性废水处理的吸附剂.

英文摘要：

A functional ferroferric oxide/carbon nanotube composite material was prepared by thermal decom position. Muhi-walled carbon nanotubes （MWNTs） were decorated with magnetic iron oxide nanopartieles, with an uniform distribution on the nanotube surface, no reunion phenomenon to appear. Because the composite materials exhibited superparamagnetic behavior and could be easily separated from the solution via a magnetic process, this MWNTiron oxide composites might serve as adsorbent for contaminant adsorption from radioactive wastewater, especially for copper ion removal. The adsorption of MWNT-iron oxide composites toward copper ion was time dependent, and the composites could be efficiently removed through a magnetic separation process. This magnetic nanoparticle decorated carbon nanotubes might be an efficient and proper adsorbent in wastewater treatment applications.