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Adsorption Behaviour of Ethylene Vinyl Acetate and Polycaprolactone-Bentonite Composites for Pb2+ Uptake

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Abstract

The results presented in this work show that the hydrophobic thermoplastics, namely ethylene vinyl acetate (EVA) and polycaprolactone (PCL), could be good matrices for the synthesis of polymer/bentonite composites via the melt-blending method for the removal of heavy metals from water. The hydrophobic nature of the polymers was countered by using dry Na2SO4 to form large free-volume pores. These pores, formed after the removal of the Na2SO4 by washing, improved the contact ratio between bentonite particles and Pb2+ ions. The composites were able to achieve up to 78% Pb2+ removal at an initial concentration of 200 mg/L in 10 h with a clay loading of 3% (w/w). The results confirmed that the PCL/bentonite composite was more effective and efficient in the adsorption of Pb2+ than the EVA/bentonite composite. The experimental data for both composites followed Langmuir and Freundlich models. The uptake of Pb2+ was found to be a result of a chemical interaction between the heavy metal, silanol (Si–OH) and aluminol (Al–OH) groups. The adsorption of Pb2+ onto the composites was found to follow pseudo-first-order kinetics and the results supported a monomolecular reaction mechanism.

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References

  1. M. Bystrzejewski, K. Pyrzyn′ska, Colloids Surf. A. Physicochem. Eng. Aspects. 377, 402–408 (2011)

    Article  CAS  Google Scholar 

  2. M. Nadeem, A. Mahmood, S.A. Shahid, S.S. Shah, A.M. Khalid, G. McKay, J. Hazard. Mater. B138, 604–613 (2006)

    Article  Google Scholar 

  3. M. Dinesh, P.S. Kunwar, Water Res. 36, 2304–2318 (2002)

    Article  Google Scholar 

  4. Q. Feng, Q. Lin, F. Gong, S. Sugita, M. Shoya, J. Colloid Interface Sci. 278, 1–8 (2004)

    Article  CAS  Google Scholar 

  5. M.A. Farajzadeh, A.B. Monji, Sep. Purif. Technol. 38, 197–207 (2004)

    Article  CAS  Google Scholar 

  6. D. Boˇzi ′c, V. Stankovi′c, M. Gorgievski, G. Bogdanovi′c, R. Kovaˇcevi, J. Hazard. Mater. 171, 684–692 (2009)

    Article  Google Scholar 

  7. O. Abollinoa, M. Acetob, M. Malandrinoa, C. Sarzaninia, E. Mentasti, Water Res. 37, 1619–1627 (2003)

    Article  Google Scholar 

  8. W. Zha, C.D. Han, H.C. Moon, S.H. Han, D.H. Lee, J.K. Kim, Polymer. 51, 936–952 (2010)

    Article  CAS  Google Scholar 

  9. J.L. Lee, C. Zeng, X. Cia, X. Han, J. Shen, G. Xu, Comput Sci. Technol. 65, 2344–2363 (2005)

    Article  CAS  Google Scholar 

  10. L. Madaleno, J. Schjødt-Thomsen, J.C. Pinto, Comput. Sci. Technol. 70, 804–814 (2010)

    CAS  Google Scholar 

  11. C. Yen, H. He, L.J. Lee, W.S. Winston Ho, J. Memb. Sci. 343, 180–188 (2009)

    Article  CAS  Google Scholar 

  12. D.S. Dlamini, S.B. Mishra, A.K. Mishra, B.B. Mamba, J. Inorg. Organomet. Polym. 21, 229–236 (2011)

    Article  CAS  Google Scholar 

  13. Y. Wang, M.A. Rodriguez-Perez, R.L. Reis, J.F. Mano, Macromol. Mater. Eng. 290, 792–801 (2005)

    CAS  Google Scholar 

  14. S.R. Chowdhury, J.K. Mishra, C.K. Das, Polym. Degrad. Stab. 70, 199–204 (2000)

    Article  CAS  Google Scholar 

  15. Y.T. Sung, C.K. Kum, H.S. Lee, J.S. Kim, H.G. Yoon, W.N. Kim, Polymer. 46, 11844–11848 (2005)

    Article  CAS  Google Scholar 

  16. S.J. Lue, D. Lee, J. Chen, C.-H. Chiu, C.-C. Hu, Y.C. Jean, J. Lai, J. Memb. Sci. 325, 831–839 (2008)

    Article  CAS  Google Scholar 

  17. K. De Sitter, P. Winberg, J. D’Haen, C. Dotremont, R. Leysen, J.A. Martens, S. Mullens, F.H.J. Maurer, I.F.J. Vankelecom, J. Memb. Sci. 278, 83–91 (2006)

    Article  Google Scholar 

  18. A. Hosseini-Bandegharaei, M.S. Hosseini, Y. Jalalabadi, M. Sarwghadi, M. Nedaie, A. Aherian, A. Ghaznavi, A. Eftekhari, Chem. Eng. J. 168, 1163–1173 (2010)

    Article  Google Scholar 

  19. E.J. Elzinga, D.J. Sparks, J. Colloid Interface Sci. 213, 506–512 (1999)

    Article  CAS  Google Scholar 

  20. C. Hennig, T. Reich, R. Dahn, A.M. Scheidegger, Radiochim. Acta. 90, 653–657 (2002)

    Article  CAS  Google Scholar 

  21. K.G. Bhattacharyya, S.S. Gupta, Adv. Colloid. Interface Sci. 140, 114–131 (2008)

    Article  CAS  Google Scholar 

  22. T.K. Naiya, A.K. Bhattacharya, S.K. Das, J. Colloid Interface Sci. 333, 14–26 (2009)

    Article  CAS  Google Scholar 

  23. K. Kadirvelu, C. Namasivayam, Adv. Environ. Res. 7, 471–478 (2003)

    Article  CAS  Google Scholar 

  24. I. Langmuir, J. Am. Chem. Soc. 38, 2221–2295 (1916)

    Article  CAS  Google Scholar 

  25. E. Alvarez-Ayuso, A. Garcia-Sanchez, Clays Clay Miner. 51, 475–580 (2003)

    Article  CAS  Google Scholar 

  26. O.S. Bello, O.M. Adelaide, M. Abdul Hammed, O. Abdul Muiz Popoola, Macedonian J. Chem. Chem. Eng. 29, 77–85 (2010)

    CAS  Google Scholar 

  27. K.R. Hall, L.C. Eagleton, A. Acrivos, T. Vermeulen, Ind. Eng. Chem. Fund. 5, 212–223 (1966)

    Article  CAS  Google Scholar 

  28. J.M. Montgomery, Water treatment principles and design, (Consulting Engineers Inc. USA) (Wiley, New York, 1985), pp. 312–326

    Google Scholar 

  29. M. Sölener, S. Tunali, A.S. Özcan, A. Özcan, T. Gedikbey, Desalination. 223, 308–322 (2008)

    Article  Google Scholar 

  30. Y. Sa˘g, Y. Aktay, Biochem. Eng. J. 12, 143–153 (2002)

    Article  Google Scholar 

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Acknowledgments

The authors are grateful to the National Research Foundation (NRF) and the University of Johannesburg (UJ) for funding this project. G&W minerals are acknowledged for providing bentonite clay.

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Authors and Affiliations

  1. Department of Chemical Technology, University of Johannesburg, PO Box 17011, Doornfontein, Johannesburg, 2028, South Africa

    D. S. Dlamini, A. K. Mishra & B. B. Mamba

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  1. D. S. Dlamini
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  2. A. K. Mishra
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  3. B. B. Mamba
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Correspondence to A. K. Mishra.

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Dlamini, D.S., Mishra, A.K. & Mamba, B.B. Adsorption Behaviour of Ethylene Vinyl Acetate and Polycaprolactone-Bentonite Composites for Pb2+ Uptake. J Inorg Organomet Polym 22, 342–351 (2012). https://doi.org/10.1007/s10904-011-9640-1

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  • DOI: https://doi.org/10.1007/s10904-011-9640-1

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