Synthesis and characterization of porous magnetic silica composite for the removal of heavy metals from aqueous solution

M.A. Barakat; Rajeev Kumar

Journal of Industrial and Engineering Chemistry, Vol.23, 93-99, March, 2015

DOI10.1016/j.jiec.2014.07.046 Export Citation

Synthesis and characterization of porous magnetic silica composite for the removal of heavy metals from aqueous solution

M.A. Barakat^{1, 2}, and Rajeev Kumar^{1, 3, †}

¹Department of Environmental Sciences, Faculty of Meteorology, Environment and Arid Land Agriculture, King Abdulaziz University, Jeddah 21589, Saudi Arabia
²Central Metallurgical R & D Institute, Helwan, 11421 Cairo, Egypt
³, Saudi Arabia

E-mail:

Magnetic core and porous silica shell (Fe3O4@nSiO2@mSiO2) composite has been synthesized using surfactant assisted template approach. The composite was characterized by scanning electron microscopy, transmission electron microscopy, N2 adsorption-desorption isotherm, X-ray photoelectron spectroscopy, Fourier transform-infrared spectroscopy. The efficiency of Fe3O4@nSiO2@mSiO2 for Pb(II) and Cd(II) adsorption was studied under the influence of solution pH, contact time and initial solution concentration. Kinetic study illustrated that the pseudo-second-order equation was well correlated with the kinetic data, and the intra-particle diffusion model indicated the multi step adsorption process. In single metal adsorption system, the adsorption affinity of Fe3O4@nSiO2@mSiO2 for Pb(II) was 1.52 times greater than Cd(II) while in binary system, it was 2.59 times higher at pH 5.5.

Keywords:Adsorption;Magnetic composite;Heavy metals;Kinetics;Isotherm

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[Referenced By]

[1] Wang JH, Zheng SR, Shao Y, Liu JL, Xu ZY, Zhu DQ, J. Colloid Interface Sci., 349(1), 293 (2010)

[2] Abbas M, Kaddour S, Trari M, J. Ind. Eng. Chem., 20(3), 745 (2014)

[3] Caparros C, Benelmekki M, Martins PM, Xuriguera E, Silva CJR, Martinez LM, Lanceros-Mendez S, Mater. Chem. Phys., 135(2-3), 510 (2012)

[4] Yuan Q, Li N, Chi Y, Geng W, Yan W, Zhao Y, Li X, Dong B, J. Hazard. Mater., 254-255, 157 (2013)

[5] Huang J, Ye M, Qu YQ, Chu LF, Chen R, He QZ, Xu DF, J. Colloid Interface Sci., 385, 137 (2012)

[6] Yin P, Xu M, Liu W, Qu R, Liu X, Liu Q, J. Ind. Eng. Chem., 20(2), 379 (2014)

[7] Qu Q, Gu Q, Gu Z, Shen Y, Wang C, Hu X, Colloids Surf. A: Physicochem. Eng. Asp., 415, 41 (2012)

[8] Gandhi S, Venkatesh S, Sharma U, Jagannathan NR, Sethuraman S, Krishnan UM, J. Mater. Chem., 21, 15698 (2011)

[9] Zhao WR, Gu JL, Zhang LX, Chen HR, Shi JL, J. Am. Chem. Soc., 127(25), 8916 (2005)

[10] Ren Y, Abbood HA, He FB, Peng H, Huang KX, Chem. Eng. J., 226, 300 (2013)

[11] Lin ZA, Zheng JN, Lin F, Zhang L, Cai Z, Chen GN, J. Mater. Chem., 21, 518 (2011)

[12] Deng Y, Qi D, Deng C, Zhang X, Zhao D, J. Am. Chem. Soc., 130(1), 28 (2008)

[13] Ray S, Bhaumik A, Pramanik M, Butcher RJ, Yildirim SO, Mukhopadhyay C, Catal. Commun., 43, 173 (2014)

[14] Liu H, Ji S, Yang H, Zhang H, Tang M, Ultrason. Sonochem., 21, 505 (2014)

[15] Gonzalez F, Barrera-Calva E, Huerta L, Mane RS, Open Surf. Sci. J., 3, 131 (2011)

[16] Coelho JV, Guedes MS, Prado RG, Tronto J, Ardisson JD, Pereira MC, Oliyeira LCA, Appl. Catal. B: Environ., 144, 792 (2014)

[17] Wang YJ, Zhao HY, Chai SN, Wang YB, Zhao GH, Li DM, Chem. Eng. J., 223, 524 (2013)

[18] Harraz FA, Appl. Surf. Sci., 287, 203 (2013)

[19] Ma ZJ, Ji HJ, Teng Y, Dong GP, Zhou JJ, Tan DZ, Qiu JR, J. Colloid Interface Sci., 358(2), 547 (2011)

[20] Idris A, Ismail NSM, Hassan N, Misran E, Ngomsik AF, J. Ind. Eng. Chem., 18(5), 1582 (2012)

[21] Lagergren S, Sven K, Vetenskapsakad. Handl., 24, 1 (1898)

[22] Ho YS, McKay G, Process Biochem., 34(5), 451 (1999)

[23] Najafi M, Yousefi Y, Rafati AA, Sep. Purif. Technol., 85, 193 (2012)

[24] Yang W, Ding P, Zhou L, Yu J, Chen X, Jiao F, Appl. Surf. Sci., 282, 38 (2013)

[25] Weber WJ, Morris JC, J. Sanit. Eng. Div.-ASCE, 89, 31 (1963)

[26] Han RP, Zhang JJ, Han P, Wang YF, Zhao ZH, Tang MS, Chem. Eng. J., 145(3), 496 (2009)

[27] Langmuir I, J. Am. Chem. Soc., 40, 1361 (1918)

[28] Freundlich HMF, J. Am. Chem. Soc., 57, 385 (1906)

[29] Dubinin M, Zaverina ED, Radushkevich LV, Zh. Fiz. Khim., 21, 1351 (1947)

[30] Irani M, Amjadi M, Mousavian MA, Chem. Eng. J., 178, 317 (2011)

[31] Padilla-Ortega E, Leyva-Ramos R, Flores-Cano JV, Chem. Eng. J., 225, 535 (2013)