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Adsorption of monobutyl phthalate from aqueous phase onto two macroporous anion-exchange resins
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نویسنده
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xu z. ,zhao y. ,shi j. ,lu j. ,cheng l. ,chen m.
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منبع
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journal of chemistry - 2014 - دوره : 2014 - شماره : 0
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چکیده
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As new emerging pollutants,phthalic acid monoesters (pams) pose potential ecological and human health risks. in the present study,adsorption performance of monobutyl phthalate (mbp) onto two macroporous base anion-exchange resins (d-201 and d-301) was discussed. it was found that the adsorption isotherms were best fitted by the langmuir equation while the adsorption kinetics were well described by pseudo-first-order model. analyses of sorption isotherms and thermodynamics proved that the adsorption mechanisms for dbp onto d-201 were ion exchange. however,the obtained enthalpy values indicate that the sorption process of mbp onto d-301 is physical adsorption. the equilibrium adsorption capacities and adsorption rates of dbp on two different resins increased with the increasing temperature of the solution. d-301 exhibited a higher adsorption capacity of mbp than d-201. these results proved that d-301,as an effective sorbent,can be used to remove phthalic acid monoesters from aqueous solution. © 2014 zhengwen xu et al.
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آدرس
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jiangsu key laboratory of atmospheric environment monitoring and pollution control,nanjing university of information science and technology,nanjing 210044,china,school of environmental science and engineering,nanjing university of information science and technology, China, jiangsu key laboratory of atmospheric environment monitoring and pollution control,nanjing university of information science and technology,nanjing 210044,china,school of environmental science and engineering,nanjing university of information science and technology, China, school of sciences,china pharmaceutical university, China, jiangsu key laboratory of atmospheric environment monitoring and pollution control,nanjing university of information science and technology,nanjing 210044,china,school of environmental science and engineering,nanjing university of information science and technology, China, jiangsu key laboratory of atmospheric environment monitoring and pollution control,nanjing university of information science and technology,nanjing 210044,china,school of environmental science and engineering,nanjing university of information science and technology, China, jiangsu key laboratory of atmospheric environment monitoring and pollution control,nanjing university of information science and technology,nanjing 210044,china,school of environmental science and engineering,nanjing university of information science and technology, China
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Authors
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