Journal
APPLIED SURFACE SCIENCE
Volume 261, Issue -, Pages 504-509Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2012.08.045
Keywords
Fe3O4/graphene nanocomposite; Aniline removal; p-Chloroaniline removal; Adsorption kinetics; Adsorption isotherm
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Funding
- National Natural Science Foundation of China [21075056, J1103307]
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In the present study, Fe3O4/graphene nanocomposite was prepared by solvothermal method and characterized by transmission electron microscope, Fourier transform infrared spectrometer and vibration sample magnetometer. Effects of different factors, including initial solution pH, agitation time and adsorbate concentration, on adsorption capacity of Fe3O4/graphene nanocomposite for aniline and p-chloroaniline were investigated. Experimental results demonstrated aniline and p-chloroaniline could be effectively removed from aqueous solution by Fe3O4/graphene nanocomposite within 60 min without adjusting solution pH. The adsorption of aniline and p-chloroaniline onto Fe3O4/graphene nanocomposite obeyed pseudo-second-order kinetic model and Freundlich isotherm model. The saturation magnetization of the Fe3O4/graphene nanocomposite was about 120 emu g(-1), which ensured the convenient magnetic separation after adsorption. (C) 2012 Elsevier B. V. All rights reserved.
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