caa a22 4500 606195513 CHVBK 20210128100919.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s10934-015-9970-4 doi (NATIONALLICENCE)springer-10.1007/s10934-015-9970-4 Chromate adsorption on amine-functionalized core/shell magnetic mesoporous material [Elektronische Daten] [Weigang Li, Gang Li, Qiang Lv, Wencong Xu, Liping Liu] The core-shell magnetic mesoporous microspheres were synthesized by a sol-gel method using cetyltrimethylammonium bromide as structure-directing agent. The microspheres were characterized by powder X-ray diffraction, N2 physical adsorption-desorption, magnetic measurements, scanning electron microscopy, transmission electron microscopy, and so on. The results show that the microspheres possess very strong magnetization, high surface area, large pore volume, and uniform accessible mesopores. The core-shell magnetic mesoporous microspheres were further amine functionalized using (3-aminopropyl) triethoxysilane (APTES), and presented positive charge under acid condition. Thus the negatively charged chromate anions can be adsorbed on the composites through electrostatic interaction. The adsorption experiment results demonstrate that the adsorption of chromate anions fit well by Langmuir isotherm and the maximum adsorption capacity reaches to 1.03mmol Cr/g adsorbent. Springer Science+Business Media New York, 2015 Magnetic microspheres nationallicence Amine functionalized nationallicence Adsorption nationallicence Chromate nationallicence Langmuir equation nationallicence Li Weigang State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, Dalian, People's Republic of China aut Li Gang State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, Dalian, People's Republic of China aut Lv Qiang State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, Dalian, People's Republic of China aut Xu Wencong State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, Dalian, People's Republic of China aut Liu Liping State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, Dalian, People's Republic of China aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/4(2015-08-01), 965-972 1380-2224 22:4<965 2015 22 10934 https://doi.org/10.1007/s10934-015-9970-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-015-9970-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Weigang State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, Dalian, People's Republic of China aut NATIONALLICENCE 700 1- Li Gang State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, Dalian, People's Republic of China aut NATIONALLICENCE 700 1- Lv Qiang State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, Dalian, People's Republic of China aut NATIONALLICENCE 700 1- Xu Wencong State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, Dalian, People's Republic of China aut NATIONALLICENCE 700 1- Liu Liping State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024, Dalian, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/4(2015-08-01), 965-972 1380-2224 22:4<965 2015 22 10934