摘要
采用高温催化裂解法制备碳纳米管,对其用浓硝酸氧化法进行纯化处理,并用化学共沉淀方法制备了磁性碳纳米管(简称磁性管)。利用场发射扫描电子显微镜对磁性管进行了表征。将磁分离技术应用于碳纳米管吸附性能研究,探索碳纳米管负载磁性颗粒后对甲基橙的吸附性能,寻找最佳实验条件,对吸附质溶液进行紫外-可见吸收光谱分析。同时,进行了磁性管的脱附和再吸附性能研究。
Ferrocene was used as a catalyst, and xylene as carbon source. Chemical vapor deposition method was used to synthesize carbon nanotubes （CNTs）. The CNTs were treated by oxidation method with concentrated nitric acid. Magnetic carbon nanotubes were prepared by using chemical co-precipitation. The products were characterized by field emission scanning electron microscope. This paper is concerned with the adsorption of methyl orange by magnetic carbon nanotubes. The best experimental conditions were found. Adsorbent solution was analyzed by UV-Vis adsorption spectra. At the same time, desorption and re-adsorption of methyl orange from magnetic CNTs were studied.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2011年第1期205-209,共5页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金项目(20876157)资助
关键词
紫外-可见光谱
磁性碳纳米管
制备
表征
吸附
甲基橙
PAA
UV-Vis spectrum
Magnetic carbon nanotubes
Preparation
Characterization
Adsorption
Methyl orange
PAA
