Abstract
The sorption of radionuclide 63Ni(II) on bentonite/iron oxide magnetic composites was investigated by batch technique under ambient conditions. The effect of contact time, solid content, pH, coexistent electrolyte ions, fulvic acid, and temperature on Ni(II) sorption to bentonite/iron oxide magnetic composites was examined. The results demonstrated that the sorption of Ni(II) was strongly dependent on pH and ionic strength at pH <8.0, and was independent of pH and ionic strength at high pH values. The sorption of Ni(II) was dominated by outer-sphere surface complexation or ion exchange at low pH, whereas inner-sphere surface complexation was the main sorption mechanism at high pH. The experimental data were well fitted by Langmuir model. The thermodynamic parameters (∆G°, ∆S°, ∆H°) calculated from the temperature-dependent sorption isotherms indicated that the sorption of Ni(II) on bentonite/iron oxide magnetic composites was an endothermic and spontaneous processes. The results show that bentonite/iron oxide magnetic composites are promising magnetic materials for the preconcentration and separation of radionickel from aqueous solutions in environmental pollution.
Similar content being viewed by others
References
Zhang H, Chen L, Zhang LP, Yu XJ (2010) J Radioanal Nucl Chem 287:357–365
Sheng GD, Yang ST, Sheng J, Zhao DL, Wang XK (2011) Chem Eng J 168:178–182
Manohar DM, Noeline BF, Anirudhan TS (2006) Appl Clay Sci 31:194–206
Shao DD, Fan QH, Li JX, Niu ZW, Wu WS, Chen YX, Wang XK (2009) Microporous Mesoporous Mater 123:1–9
Tan XL, Fang M, Li JX, Lu Y, Wang XK (2009) J Hazard Mater 168:458–465
Shao DD, Xu D, Wang SW, Fan QH, Wu WS, Dong YH, Wang XK (2009) Sci China Ser B Chem 52:362–371
Yang ST, Li JX, Shao DD, Hu J, Wang XK (2009) J Hazard Mater 166:109–116
Sheng GD, Sheng J, Yang ST, Hu J, Wang XK (2011) J Radioanal Nucl Chem 289:129–135
Tan XL, Fang M, Chen CL, Yu SM, Wang XK (2008) Carbon 46:1741–1750
Tan XL, Chen CL, Yu SM, Wang XK (2008) Appl Geochem 23:2767–2777
Yang ST, Sheng GD, Tan XL, Hu J, Du JZ, Montavon G, Wang XK (2011) Geochim Cosmochim Acta 21:6520–6534
Sheng GD, Yang ST, Sheng J, Hu J, Tan XL, Wang XK (2011) Environ Sci Technol 45:7718–7726
Tan XL, Hu J, Montavon G, Wang XK (2011) Dalton Trans 40:10953–10960
Hu BW, Cheng W, Zhang H, Sheng GD (2010) J Radioanal Nucl Chem 285:389–398
Zhang H, Yu XJ, Chen L, Jing YJ, Ge ZW (2010) J Environ Radioact 101:1061–1069
Zhang H, Yu XJ, Chen L, Geng JQ (2010) J Radioanal Nucl Chem 286:249–258
Hu J, Xu D, Chen L, Wang XK (2009) J Radioanal Nucl Chem 279:701–708
Özcan AS, Özcan A (2004) J Colloid Interface Sci 276:39–46
Tan XL, Hu J, Zhou X, Yu SM, Wang XK (2009) Radiochim Acta 96:487–495
Hu J, Shao DD, Chen CL, Sheng GD, Li JX, Wang XK, Nagatsu M (2010) J Phys Chem B 114:6779–6785
Dao HV, Maher LA, Ngeh LN, Bigger SW, Orbell JD, Healy M, Jessop R, Dann P (2006) Environ Chem Lett 4:111–113
Gong JL, Wang B, Zeng GM, Yang CP, Niu CG, Niu QY, Zhou WJ, Liang Y (2009) J Hazard Mater 164:1517–1522
Chen CL, Wang XK, Nagatsu M (2009) Environ Sci Technol 432:362–2367
Hu J, Chen GH, Lo IMC (2005) Water Res 39:4528–4536
Banerjee SS, Chen DH (2007) J Hazard Mater 147:792–799
Tan XL, Wang XK, Geckeis H, Rabung T (2008) Environ Sci Technol 42:6532–6537
Tan XL, Fan QH, Wang XK, Grambow B (2009) Environ Sci Technol 43:3115–3121
Fan QH, Shao DD, Wu WS, Wang XK (2009) Chem Eng J 150:188–195
Fan QH, Shao DD, Hu J, Wu WS, Wang XK (2008) Surf Sci 602:778–785
Ho YS, Mckay G (1998) Chem Eng J 70:115–124
Zhao DL, Yang X, Zhang H, Chen CL, Wang XK (2010) Chem Eng J 164:49–55
Fan QH, Tan XL, Li JX, Wang XK, Wu WS, Montavon G (2008) Environ Sci Technol 43:5776–5782
Zhang H, Chen L, Zhang DC, Lu SS, Yu XJ (2011) Colloid Surf A 380:16–24
Yang SB, Hu J, Chen CL, Shao DD, Wang XK (2011) Environ Sci Technol 45:3621–3627
Chen CL, Wang XK (2007) Appl Radiat Isot 65:155–163
Zhao DL, Yang SB, Chen SH, Guo ZQ, Yang X (2011) J Radioanal Nucl Chem 287:557–565
Xu D, Tan XL, Chen CL, Wang XK (2008) J Hazard Mater 154:407–416
Strathmann TJ, Myneni SCB (2005) Environ Sci Technol 39:4027–4034
Zhao DL, Hu J, Sheng GD, Chen CL, Wang XK (2011) Chem Eng J 171:167–174
Sheng GD, Wang SW, Hu J, Lu Y, Li JX, Dong YH, Wang XK (2009) Colloid Surf A 339:159–166
Zhao GX, Jiang L, He YD, Li JX, Dong HL, Wang XK, Hu WP (2011) Adv Mater 23:3959–3963
Chen L, Huang Y, Huang LL, Liu B, Wang G, Yu SM (2011) J Radioanal Nucl Chem 290:675–684
Yang ST, Li JX, Lu Y, Chen YX, Wang XK (2009) Appl Radiat Isot 67:1600–1608
Yang ST, Sheng GD, Guo ZQ, Tan XL, Xu JZ, Wang XK (2011) Sci China Ser B Chem 41:1–12
Zuo LM, Yu SM, Zhou H, Tian X, Jiang J (2011) J Radioanal Nucl Chem 288:379–387
Zuo LM, Yu SM, Zhou H, Jiang J, Tian X (2011) J Radioanal Nucl Chem 288:579–586
Zhao GX, Zhang HX, Fan QH, Ren XM, Li JX, Chen YX, Wang XK (2010) J Hazard Mater 173:661–668
Zhao GX, Li JX, Wang XK (2011) Chem Eng J 173:185–190
Ren XM, Wang SW, Yang ST, Li JX (2010) J Radioanal Nucl Chem 283:253–259
Hu J, Shao DD, Chen CL, Sheng GD, Ren XM, Wang XK (2011) J Hazard Mater 185:463–471
Sheng GD, Shao DD, Ren XM, Wang XQ, Li JX, Chen YX, Wang XK (2010) J Hazard Mater 178:505–516
Castro CS, Guerreiro MC, Goncalves M, Oliveira LCA, Anastacio AS (2009) J Hazard Mater 164:609–614
Acknowledgment
Financial support from National Natural Science Foundation of China (20971033) is acknowledged.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chen, L., Yu, S., Huang, L. et al. Impact of environmental conditions on the removal of Ni(II) from aqueous solution to bentonite/iron oxide magnetic composites. J Radioanal Nucl Chem 292, 1181–1191 (2012). https://doi.org/10.1007/s10967-012-1687-0
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10967-012-1687-0