论文部分内容阅读
用阳离子型表面活性剂十六烷基三甲基溴化铵(CTAB)为模板剂、[FeF6]3-为铁源、氨水为沉淀剂合成了介孔-βFeOOH(四方纤铁矿)粒子。对所合成的介孔氧化铁粒子用红外光谱(IR)、粉末X-射线衍射(XRD)、透射电子显微镜(TEM)、扫描电子显微镜(SEM)、热重-差热分析(TG-DSC)、氮气吸附脱附(BET)等手段进行了表征。结果表明,介孔氧化铁粒子具有不规则椭球状形貌、虫孔状介孔结构,比表面积达164.4 m2/g,用乙醇萃取可以完全除去所使用的表面活性剂模板。
Using cationic surfactant cetyltrimethylammonium bromide (CTAB) as templating agent, [FeF6] 3- as iron source and ammonia as precipitator, mesoporous-βFeOOH (tetragonal iron oxide) particles were synthesized. The synthesized mesoporous iron oxide particles were characterized by IR, XRD, TEM, TG, TG-DSC, , Nitrogen adsorption and desorption (BET) and other means were characterized. The results showed that the mesoporous iron oxide particles have an irregular ellipsoidal morphology and a mesoporous pore structure with a specific surface area of 164.4 m2 / g. The ethanol extract can completely remove the surfactant template used.