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利用热分解法制备了磁性碳纳米管,采用扫描电子显微镜(SEM)、X射线衍射分析仪(XRD)、比表面积分析仪(BET)进行了表征.研究表明,磁性碳纳米管纯度高且孔隙均匀,外径约为50 nm,比表面积为146.7 m2/g;同时加外磁场可以快速其分离.磁性碳纳米管应用于吸附/微波再生处理水中五氯苯酚,结果表明,磁性碳纳米管对五氯苯酚的吸附动力学符合Langergren模型,其平衡吸附量为30.5 mg/g;吸附等温线符合Freundlich模型.吸附饱和磁性碳纳米管经微波再生循环使用5次,再生率均高于100%,且磁性良好.
The magnetic carbon nanotubes were prepared by thermal decomposition and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and specific surface area analyzer (BET) .The results show that the magnetic carbon nanotubes have high purity and porosity Uniform, the outer diameter of about 50 nm, the specific surface area of 146.7 m2 / g; at the same time plus an external magnetic field can quickly separate magnetic carbon nanotubes used in adsorption / microwave regeneration of water pentachlorophenol, the results show that magnetic carbon nanotubes pairs The adsorption kinetics of pentachlorophenol was in accordance with the Langergren model, and its equilibrium adsorption capacity was 30.5 mg / g. The adsorption isotherm was in accordance with the Freundlich model. The adsorbed saturated magnetic carbon nanotubes were recycled by microwave five times with the regeneration rates higher than 100% And magnetic good.