文献类型：期刊文献

英文题名：Preparation and adsorption properties of the biomimetic gama-alumina

作者：Wang, Yunhui[1,2];Wei, Qinglian[1,2];Huang, Yongmin[1,2,3]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China;[3]Shanghai Inst Space Prop, Shanghai Engn Res Ctr Space Engine, Shanghai 201112, Peoples R China

年份：2015

卷号：157

起止页码：67

外文期刊名：MATERIALS LETTERS

收录：;EI(收录号：20152300912334);WOS:【SCI-EXPANDED(收录号:WOS:000358973500018)】；

基金：This work was partly supported by the Open Project of State Key Laboratory of Chemical Engineering (SKL-ChE).

语种：英文

外文关键词：Biomimetic; Gama-alumina; Porous materials; Surface acidity; Adsorption

摘要：Biomimetic gama-alumina was prepared by using broadleaf Liriope leaf as template. The surface acidity of the sample was measured and the adsorption experiments were carried out. The results indicated that the obtained gama-alumina inherited the morphology and microstructure of leaf template and showed weak surface acidity. Therefore, the as-prepared alumina exhibited good adsorption performance for acid fuchsin, but bad adsorption toward alkaline methyl orange. After acid-modifying, the sample showed strong surface acidity and displayed good adsorption performance toward alkaline methyl orange. These results demonstrated that the surface acidity-alkalinity of alumina determined its adsorption performance and selectivity for organic compounds. (C) 2015 Elsevier B.V. All rights reserved.