【作者】 李广慈； 关丽丽； 柳云骐； 刘晨光；

【Author】 LI Guang-ci,GUAN Li-li,LIU Yun-qi,LIU Chen-guang (State Key Laboratory of Heavy Oil Processing,Key Laboratory of Catalysis,CNPC, China University of Petroleum,Qingdao 266555,China )

【机构】 中国石油大学(华东)化学化工学院重质油国家重点实验室CNPC催化重点实验室；

【摘要】 以AlCl₃·6H₂O为铝源,经简单的水热反应成功合成了由纳米片组装的具有多层结构的纳米薄水铝石晶体。利用X射线衍射（XRD）、扫描电镜（SEM）、透射电镜（TEM）和低温N₂吸脱附法,考察了产物的晶体结构、形貌和孔性质等特征。结果表明,反应3h后的产物呈3D片层结构,颗粒长约800nm,直径大约200nm左右,且尺寸较均一。在反应过程中,N,N-二甲基甲酰胺（DMF）对纳米片的形成起着重要的作用,并结合实验结果讨论了纳米片状结构可能的形成机理。最后,以刚果红为吸附质对所得薄水铝石粉末的吸附性能进行了研究。更多还原

【Abstract】 The boehmite crystal with hierarchical structure assembled by nanosheets has been prepared via a simple hydrothermal route using AlCl₃·6H₂O as a precursor.The crystal structure,morphology and textural property of the resulting material was characterized by X-ray diffraction（XRD）,scanning electron microscopy （SEM）,transmission electron microscopy（TEM） and N₂ adsorption/desorption method.The experiment results indicated that the products obtained after 3 h displayed 3D nanostructures with the length of ca.800 nm and diameter of ca.200 nm.And the size of particles was uniform.During the reaction,DMF played a key role in the formation of the 3D nanostructures.According to the experiment results,the possible formation mechanism of the boehmite with hierarchical structure was proposed and discussed.Finally,the adsorption performance of as-prepared boehmite was measured by using Congo red as an adsorbate.更多还原