caa a22 4500 606195769 CHVBK 20210128100921.0 cr unu---uuuuu 210128e20151001xx s 000 0 eng 10.1007/s10934-015-0017-7 doi (NATIONALLICENCE)springer-10.1007/s10934-015-0017-7 Highly efficient methylene blue dyes removal from aqueous systems by chitosan coated magnetic mesoporous silica nanoparticles [Elektronische Daten] [Ying Li, Yifeng Zhou, Wangyan Nie, Linyong Song, Pengpeng Chen] In this work, uniform chitosan coated magnetic mesoporous silica nanoparticles (CMMSNs) with good adsorption capacity and magnetic response were synthesized, and they were successfully applied to highly efficient methylene blue (MB) dyes removal. The structure and morphologies of the obtained nanoparticles were characterized by Fourier transform infrared spectroscop, X-ray diffraction, thermogravimetric analysis and nitrogen adsorption-desorption analysis and transimission electron microscopy. The CMMSNs possessed a classical core-shell structure with several Fe3O4 contained in mesoporous silica nanoparticles, and then coated by chitosan. The CMMSNs had a saturation magnetization of 12.6emug−1 and could be easily separated by a magnet. Taking MB as a typical organic dye, the CMMSNs were subjected as adsorbent to remove them from the polluted water. The saturated adsorption capacity of MB was 43.03mgg−1. The MB adsorption kinetic and adsorption isotherm analysis results showed that the pseudo-second order equation was the most suitable one to describe the adsorption kinetics of MB for CMMSNs, and the adsorption isotherm model of MB onto the CMMSNs belonged to Freundlich isotherm model. Springer Science+Business Media New York, 2015 Magnetic mesoporous silica nationallicence Chitosan nationallicence Dyes removal nationallicence Methylene blue nationallicence Li Ying Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, People's Republic of China aut Zhou Yifeng Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, People's Republic of China aut Nie Wangyan Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, People's Republic of China aut Song Linyong Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, People's Republic of China aut Chen Pengpeng Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, People's Republic of China aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/5(2015-10-01), 1383-1392 1380-2224 22:5<1383 2015 22 10934 https://doi.org/10.1007/s10934-015-0017-7 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/s10934-015-0017-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Li Ying Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, People's Republic of China aut NATIONALLICENCE 700 1- Zhou Yifeng Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, People's Republic of China aut NATIONALLICENCE 700 1- Nie Wangyan Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, People's Republic of China aut NATIONALLICENCE 700 1- Song Linyong Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, People's Republic of China aut NATIONALLICENCE 700 1- Chen Pengpeng Anhui Province Key Laboratory of Environment-Friendly Polymer Materials, School of Chemistry and Chemical Engineering, Anhui University, 230601, Hefei, People's Republic of China aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/5(2015-10-01), 1383-1392 1380-2224 22:5<1383 2015 22 10934