| 以橡子为碳源制备的空心磁性碳纳米球及其吸附性能 |
| Preparation and Adsorption Properties of Hollow Magnetic Carbon Nanospheres Using Acorn as Carbon Source |
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| 摘要: 以橡子为碳源，通过高温煅烧法制备了粒径均匀的磁性空心碳纳米球（MHCNS）。经过HCl浸泡处理可得MHCNS-1，再经HNO3和NH3·H2O处理得MHCNS-2。MHCNS-2粒径均匀，直径为20~40 nm，球壁厚度为3~5 nm。MHCNS-2的尺寸可通过改变镍离子与氢氧化钾的添加量和比例进行调控。通过X射线粉末衍射、扫描电镜、透射电镜、振动样品磁强计等方法对制备的产物进行了表征，进而分析了其生长机制。MHCNS-2对于有机染料亚甲基蓝（MB）的吸附性能的实验结果表明，MHCNS-2具有强吸附性能，当MB溶液浓度为100 mg·L-1时，吸附量可以达到185 mg·g-1。MHCNS对布洛芬的载药释药实验结果表明，MHCNS-2载药率可达44%，释药率达70%，有着良好的载药与释药能力。 |
| 关键词: 磁性空心碳纳米球(MHCNS) 橡子 吸附 染料 载药微球 释药性能 |
| 基金项目: 国家自然科学基金（No.81503351，81760750）资助项目。 |
| Abstract: Magnetic hollow carbon nanospheres (MHCNS) with uniform particle size were prepared by high temperature calcination using acorn as carbon source. MHCNS-1 can be obtained by HCl soaking treatment, and then treated with HNO3 and NH3·H2O to obtain MHCNS-2. MHCNS-2 had a uniform particle size with a diameter of 20~40 nm and a wall thickness of 3~5 nm. The size of MHCNS can be adjusted by changing the amount and ratio of Ni2+ and KOH. The prepared products were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), vibrating sample magnetometer and transmission electron microscopy (TEM). The growth mechanism of MHCNS was analyzed. The results of the adsorption performance of MHCNS-2 on the organic dye methylene blue (MB) show that MHCNS-2 has strong adsorption performance. When the concentration of MB solution was 100 mg·L-1, the adsorption amount could reach 185 mg·g-1. The results of MHCNS-2 on drug-loaded drug release of ibuprofen showed that the drug-loading rate of MHCNS-2 was up to 44% and the drug release rate was 70%, which means that it has good drug-loading and drug-releasing ability. |
| Keywords: magnetic hollow carbon nanospheres (MHCNS) acorns adsorption dyes drug-loaded microspheres drug release |
| 投稿时间：2019-07-17 修订日期：2020-04-25 |
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| 曹群,武世奎,李彦.以橡子为碳源制备的空心磁性碳纳米球及其吸附性能[J].无机化学学报,2020,36(7):1233-1240. |
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