Dai Mingzhu, Li Jun, Kang Bin, Ren Chao, Chang Shuquan, Dai Yaodong
College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China.
J Nanosci Nanotechnol. 2013 Mar;13(3):1927-30. doi: 10.1166/jnn.2013.7105.
A kind of novel magnetic carbon nanotube composite was prepared and designed for wastewater treatment. Multi-walled carbon nanotubes were decorated with magnetic iron oxide nanoparticles, with an uniform distribution on the nanotube surface. The functionalized carbon nanotubes exhibit superparamagnetic behavior and can be easily and rapidly separated from the dispersion via a magnetic process. The carbon nanotube-iron oxide composites might serve as adsorbent for contaminant adsorption in water, especially for copper ammonia complex removal. The adsorption of copper ammonia complex to carbon nanotube-iron oxide composites is time dependent, and they can be quickly and efficiently removed together through a magnetic separation process. This novel magnetic composites might serve as an efficient and proper adsorbent in wastewater treatment applications.
制备并设计了一种用于废水处理的新型磁性碳纳米管复合材料。多壁碳纳米管表面装饰有磁性氧化铁纳米颗粒，且在纳米管表面均匀分布。功能化的碳纳米管表现出超顺磁性行为，可通过磁分离过程轻松、快速地从分散液中分离出来。碳纳米管-氧化铁复合材料可作为水中污染物吸附的吸附剂，尤其适用于去除铜氨络合物。铜氨络合物在碳纳米管-氧化铁复合材料上的吸附具有时间依赖性，并且通过磁分离过程可以将它们快速、高效地一起去除。这种新型磁性复合材料可能是废水处理应用中一种高效且合适的吸附剂。
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