Cadmium Removal by Juniperus monosperma: the Role of Calcium Oxalate Monohydrate Structure in Bark

Eun Woo Shin

Korean Journal of Chemical Engineering, Vol.22, No.4, 599-604, July, 2005

DOI10.1007/BF02706650 Export Citation

Cadmium Removal by Juniperus monosperma: the Role of Calcium Oxalate Monohydrate Structure in Bark

Eun Woo Shin^†

School of Chemical Engineering and Bioengineering, University of Ulsan, San 29, Mugeo 2-dong, Nam-gu, Ulsan 680-749, Korea

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This study suggests that calcium oxalate monohydrate over Juniperus monosperma bark is an ion-exchangeable site for cadmium adsorption on the basis of its cadmium adsorption behavior and surface characterization. Cadmium adsorption behavior showed that juniper bark had a higher cadmium adsorption capacity (84.6 μmol Cd g.1 at pH 5) than juniper wood (32.0 μmol Cd g.1 at pH 5), and that the base-treatment improved the cadmium adsorption capacity of only juniper wood. This difference between juniper bark and wood might have originated from different cadmium binding sites. In calcium displacement, the cadmium uptake onto juniper bark was identical to the amount of calcium ions displaced, which indicated that calcium played an important role in cadmium adsorption onto juniper bark. X-ray diffraction (XRD) results gave evidence that only juniper bark contained the structure of calcium oxalate monohydrate. Furthermore, cadmium adsorption decreased the intensity of the characteristic XRD peaks for calcium oxalate monohydrate. In diffuse reflectance infrared Fourier transform (DRIFT) spectra, existence of oxalate on juniper bark was proven again and interpretation on IR band of carbonyl groups matched significantly the cadmium adsorption behavior.

Keywords:Calcium Oxalate Monohydrates;Juniperus monosperma Bark;Cadmium Adsorption

[References]

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Davis TA, Llannes F, Volesky B, Mucci A, Environ. Sci. Technol., 37, 261 (2003)
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Kontoyannis CG, Bouropoulos NC, Koutsoukos PG, Appl. Spectrosc., 51(8), 1205 (1997)
Min SH, Han JS, Shin EW, Park JK, Water Res., 38, 1289 (2004)
Nancollas GH, Gardner GL, J. Cryst. Growth, 21, 267 (1974)
Ouyang JM, Zhou N, Duan L, Tieke B, Colloids Surf. A: Physicochem. Eng. Asp., 245, 153 (2004)
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Petrova EV, Gvozdev NV, Rashkovich LN, J. Opto-electronics and Adv. Mater, 6, 261 (2004)
Romero-Gonzalez ME, Williams CJ, Gardiner PHE, Environ. Sci. Technol., 35, 3025 (2001)
Shin EW, Han JS, Min SH, Environ. Technol., 25, 185 (2004)
Shin EW, Rowell RM, Chemosphere, 60, 1054 (2005)
Tiemann KJ, Gardea-Torresdey JL, Gamez G, Dokken K, Sias S, Renner MW, Furenlid LR, Environ. Sci. Technol., 33, 150 (1999)
Yang CQ, Xu YF, Wang DJ, Ind. Eng. Chem. Res., 35(11), 4037 (1996)
Yu H, Sheikholeslami R, Doherty WOS, Ind. Eng. Chem. Res., 41(14), 3379 (2002)
Yun YS, Park D, Park JM, Volesky B, Environ. Sci. Technol., 35, 4353 (2001)
Zhang J, Kamdem DP, Holzforschung, 54, 119 (2000)

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[2] Chatjigakis AK, Pappas C, Proxenia N, Kalantzi O, Rodis P, Polissiou M, Carbohydr. Polym., 37, 395 (1998)

[3] Crist RH, Martin RJ, Crist DR, Environ. Sci. Technol., 33, 2252 (1999)

[4] Crist RH, Martin RJ, Joseph C, Environ. Sci. Technol., 30, 2456 (1996)

[5] Davis TA, Llannes F, Volesky B, Mucci A, Environ. Sci. Technol., 37, 261 (2003)

[6] Davis TA, Volesky B, Mucci A, Water Res., 37, 4311 (2003)

[7] Fransioso O, Sanchez-Cortes S, Tugnoli V, Ciavatta C, Gessa C, Appl. Spectrosc., 52, 270 (1998)

[8] Ho YS, McKay G, Water Res., 34, 735 (2000)

[9] Kontoyannis CG, Bouropoulos NC, Koutsoukos PG, Appl. Spectrosc., 51(8), 1205 (1997)

[10] Min SH, Han JS, Shin EW, Park JK, Water Res., 38, 1289 (2004)

[11] Nancollas GH, Gardner GL, J. Cryst. Growth, 21, 267 (1974)

[12] Ouyang JM, Zhou N, Duan L, Tieke B, Colloids Surf. A: Physicochem. Eng. Asp., 245, 153 (2004)

[13] Pappas C, Rodis P, Tarantilis PA, Polissiou M, Appl. Spectrosc., 53, 805 (1999)

[14] Petrova EV, Gvozdev NV, Rashkovich LN, J. Opto-electronics and Adv. Mater, 6, 261 (2004)

[15] Romero-Gonzalez ME, Williams CJ, Gardiner PHE, Environ. Sci. Technol., 35, 3025 (2001)

[16] Shin EW, Han JS, Min SH, Environ. Technol., 25, 185 (2004)

[17] Shin EW, Rowell RM, Chemosphere, 60, 1054 (2005)

[18] Tiemann KJ, Gardea-Torresdey JL, Gamez G, Dokken K, Sias S, Renner MW, Furenlid LR, Environ. Sci. Technol., 33, 150 (1999)

[19] Yang CQ, Xu YF, Wang DJ, Ind. Eng. Chem. Res., 35(11), 4037 (1996)

[20] Yu H, Sheikholeslami R, Doherty WOS, Ind. Eng. Chem. Res., 41(14), 3379 (2002)

[21] Yun YS, Park D, Park JM, Volesky B, Environ. Sci. Technol., 35, 4353 (2001)

[22] Zhang J, Kamdem DP, Holzforschung, 54, 119 (2000)