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Synthesis,Characterization,and Adsorptive Properties of Fe3O4/GO Nanocomposites for Antimony Removal
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نویسنده
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yang x. ,zhou t. ,ren b. ,shi z. ,hursthouse a.
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منبع
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journal of analytical methods in chemistry - 2017 - دوره : 2017 - شماره : 0
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چکیده
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A magnetic fe3o4/go composite with potential for rapid solid-liquid separation through a magnetic field was synthesized using go (graphene oxide) and fe3o4 (ferriferous oxide). characterization of fe3o4/go used scanning electron microscope (sem),x-ray diffractometer (xrd),fourier transform infrared spectrometer (ft-ir),and vibrating sample magnetometer (vsm). a number of factors such as ph and coexisting ions on adsorbent dose were tested in a series of batch experiments. the results showed that go and fe3o4 are strongly integrated. for ph values in the range of 3.09.0,the removal efficiency of sb(iii) using the synthesized fe3o4/go remained high (95%). the adsorption showed good fit to a pseudo-second-order and langmiur model,with the maximum adsorption capacity of 9.59 mg/g maintained across ph 3.0-9.0. thermodynamic parameters revealed that the adsorption process was spontaneous and endothermic. analysis by x-ray photoelectron spectroscopy (xps) showed that the adsorption process is accompanied by a redox reaction. © 2017 xiuzhen yang et al.
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آدرس
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college of civil engineering,hunan university of science and technology,xiangtan, China, college of civil engineering,hunan university of science and technology,xiangtan, China, college of civil engineering,hunan university of science and technology,xiangtan, China, college of civil engineering,hunan university,changsha,china,key laboratory of building safety and energy efficiency,ministry of education,hunan university,changsha, China, college of civil engineering,hunan university of science and technology,xiangtan,china,school of science and sport,university of the west of scotland,paisley, United Kingdom
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Authors
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