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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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This work presents the adsorption capability of green tea and ginseng leaves to adsorb heavy metals such as Cd(II), Cu(II), and Pb(II) in aqueous solution. FT-IR analysis indicates the presence of oxygen containing functional groups (carboxyl groups) in two kinds of leaves. High pH condition was favorable to the adsorption of heavy metal ions due to the enhanced electrostatic attraction and the precipitation reaction of metal ions. The adsorption of Cd(II), Cu(II), and Pb(II) reached equilibrium within 10 min, achieving high removal efficiencies of 80.3-97.5%. The adsorption kinetics data of heavy metal ions were fitted well with the pseudo-second-order kinetic model. The maximum adsorption amounts of Cd(II), Cu(II), and Pb(II) ions were 8, 3.5, and 15 mg/g, respectively, in the initial concentration range from 0.15 to 0.75 mM. Based on the fitting data obtained from isotherm models, heavy metal adsorption by green tea and ginseng leaves could occur via multi-layer sorption.
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참고문헌 (22)
참고문헌 신청
Mahtab Ahmad / 2012 / Eggshell and coral wastes as low cost sorbents for the removal of Pb2+, Cd2+ and Cu2+ from aqueous solutions / Journal of Industrial and Engineering Chemistry 18(1):198~204
Ahmed, M.J.K. / 2016 / A review on potential usage of industrial waste materials for bindingheavy metal ions from aqueous solutions / J. Water Proc. Eng 10:39~47
Cai, W. / 2013 / Purification, characterization and anticoagulant activity of the polysaccharides from green tea / Carbohydrate Polymers 92:1086~1090
Carolin, C. F. / 2017 / Efficient techniques for the removal of toxic heavy metals from aquatic environment: A review / J. Environ. Chem. Eng. 5:2782~2799
최재을 / 2009 / 인삼 지상부의 채취시기에 따른 사포닌조성 비교 / 한국약용작물학회지 17(4):251~256
Ahmed, M.J.K. / 2016 / A review on potential usage of industrial waste materials for bindingheavy metal ions from aqueous solutions / J. Water Proc. Eng 10:39~47
Cai, W. / 2013 / Purification, characterization and anticoagulant activity of the polysaccharides from green tea / Carbohydrate Polymers 92:1086~1090
Carolin, C. F. / 2017 / Efficient techniques for the removal of toxic heavy metals from aquatic environment: A review / J. Environ. Chem. Eng. 5:2782~2799
최재을 / 2009 / 인삼 지상부의 채취시기에 따른 사포닌조성 비교 / 한국약용작물학회지 17(4):251~256
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