Adsorption characteristics of copper ions using magnetically modified medicinal stones

Choong Jeon

Journal of Industrial and Engineering Chemistry, Vol.17, No.2, 321-324, March, 2011

DOI10.1016/j.jiec.2011.02.033 Export Citation

Adsorption characteristics of copper ions using magnetically modified medicinal stones

Choong Jeon^†

Department of Environmental & Applied Chemical Engineering, Gangneung-Wonju National University, Gangneung Daehangno 120, Gangneung, Kangwon-do 210-702, Republic of Korea

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To improve efficiency of adsorption process, magnetically modified medicinal stones (MMS) were developed bymeans of entrapment method with iron oxide and urethane. TheMMS have the maximum uptake capacity of about 13.6 mg/g-dry mass for copper ions at pH 6. The adsorption mechanism can be explained as ion exchange between alkali earth metals and copper ions. The surface condition and adsorption of copper ions onto MMSwere confirmed by ESEM and EDAX.MMS could remove copper ions of about 93% with 1.5 g and the adsorption equilibrium of MMS was faster than that of commercial ion exchange resin (IR-120 plus resin) by about 50 min.

Keywords:Medicinal stones;Copper ions;Magnetic modification;Adsorption;Inorganic materials

[References]

Nah IW, Hwang KY, Jeon C, Choi HB, Miner. Eng., 19, 1452 (2006)
Hwang JY, Minerol. Soc., 3(2), 26 (1990)
Dixon DR, Hawthorne DB, J. Appl. Chem. Biotechnol., 28, 10 (1978)
Parsonage P, Colloid Chem. Miner. Process., 331 (1992)
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Benjamin M, J. Water Pollut. Control Fed., 54, 1472 (1982)
Nah IW, Hwang KY, Shul YG, Powder Technol., 177(2), 99 (2007)
Jeon C, Kwon YD, Park KH, J. Ind. Eng. Chem., 11(5), 643 (2005)
Volesky B, Biosorption of Heavy Metals, CRC Press, Boca Raton, 318 (1990)
Honeyman BD, Santcchi AH, Environ. Sci. Technol., 22, 862 (1988)
Shukla SS, Shukla A, Zhang YH, Dubey P, Margrave JL, J. Hazard. Mater., B95, 137 (2002)

[Referenced By]

[Related Articles]

[1] Nah IW, Hwang KY, Jeon C, Choi HB, Miner. Eng., 19, 1452 (2006)

[2] Hwang JY, Minerol. Soc., 3(2), 26 (1990)

[3] Dixon DR, Hawthorne DB, J. Appl. Chem. Biotechnol., 28, 10 (1978)

[4] Parsonage P, Colloid Chem. Miner. Process., 331 (1992)

[5] Anand P, Etzel JE, Friedlacnder FJ, IEEE Trans. Magn. Magn., 21, 2062 (1985)

[6] Latour CD, Kolm H, J. Aust. Water Words Assoc., 68, 327 (1976)

[7] Bolto BA, J. Appl. Polym. Sci., 22 (1978)

[8] Benjamin M, J. Water Pollut. Control Fed., 54, 1472 (1982)

[9] Nah IW, Hwang KY, Shul YG, Powder Technol., 177(2), 99 (2007)

[10] Jeon C, Kwon YD, Park KH, J. Ind. Eng. Chem., 11(5), 643 (2005)

[11] Volesky B, Biosorption of Heavy Metals, CRC Press, Boca Raton, 318 (1990)

[12] Honeyman BD, Santcchi AH, Environ. Sci. Technol., 22, 862 (1988)

[13] Shukla SS, Shukla A, Zhang YH, Dubey P, Margrave JL, J. Hazard. Mater., B95, 137 (2002)