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

作　　者：曹群 武世奎 李彦[2] CAO Qun;WU Shi-Kui;LI Yan(College of Pharmacy,Inner Mongolia Medical University,Hohhot 010110,China;College of Chemistry and Molecular Engineering,Peking University,Beijing 100871,China)

机构地区：[1]内蒙古医科大学药学院,呼和浩特010110 [2]北京大学化学与分子工程学院,北京100871

出　　处：《无机化学学报》2020年第7期1233-1240,共8页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.81503351,81760750)资助项目。

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。Magnetic hollow carbon nanospheres(MHCNS)with uniform particle size were prepared by high tempera-ture calcination using acorn as carbon source.MHCNS-1 can be obtained by HCl soaking treatment,and then treat-ed 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 micros-copy(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 ibupro-fen 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.

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 

分 类 号：TB333[一般工业技术—材料科学与工程]