References

  1. S. Kalia, S. Kango, A. Kumar, Y. Haldorai, B. Kumari, R. Kumar, Magnetic polymer nanocomposites for environmental and biomedical applications, Colloid Polym. Sci., 292 (2014) 2025–2052.
  2. A. Idris, N. Hassan, R. Rashid, A.F. Ngomsik, Kinetic and regeneration studies of photocatalytic magnetic separable beads for chromium(VI) reduction under sunlight, J. Hazard. Mater., 186 (2011) 629–635.
  3. X. Wang, C. Zhao, P. Zhao, P. Dou, Y. Ding, P. Xu, Gellan gel beads containing magnetic nanoparticles: an effective biosorbent for the removal of heavy metals from aqueous system, Bioresour. Technol., 100 (2009) 2301–2304.
  4. X. Peng, F. Xu, W. Zhang, J. Wang, C. Zeng, M. Niu, E. Chmielewska, Magnetic Fe3O4@silica−xanthan gum composites for aqueous removal and recovery of Pb2+, Colloids Surf., A, 443 (2014) 27–36.
  5. A.E. Chávez-Guajardo, J.C. Medina-Llamas, L. Maqueira, C.A.S. Andrade, K.G.B. Alves, C.P. de Melo, Efficient removal of Cr (VI) and Cu (II) ions from aqueous media by use of polypyrrole/maghemite and polyaniline/maghemite magnetic nanocomposites, Chem. Eng. J., 281 (2015) 826–836.
  6. C.G. Lee, J.A. Park, I. Lee, J.K. Kang, S.Y. Yoon, S.B. Kim, Preparation of magnetic alginate-layered double hydroxide composite adsorbents and removal of Cr(VI) from aqueous solution, Water Sci. Technol. Water Supply, 13 (2013) 846–853.
  7. C.G. Lee, S.B. Kim, Magnetic alginate-layered double hydroxide composites for phosphate removal, Environ. Technol., 34 (2013) 2749–2756.
  8. H. Li, Z. Li, T. Liu, X. Xiao, Z. Peng, L. Deng, A novel technology for biosorption and recovery hexavalent chromium in wastewater by bio-functional magnetic beads, Bioresour. Technol., 99 (2008) 6271–6279.
  9. H. Li, S. Bi, L. Liu, W. Dong, X. Wang, Separation and accumulation of Cu(II), Zn(II) and Cr(VI) from aqueous solution by magnetic chitosan modified with diethylenetriamine, Desalination, 278 (2011) 397–404.
  10. L.C.R. Machado, F.W.J. Lima, R. Paniago, J.D. Ardisson, K. Sapag, R.M. Lago, Polymer coated vermiculite–iron composites: novel floatable magnetic adsorbents for water spilled contaminants, Appl. Clay Sci., 31 (2006) 207–215.
  11. E. Alvarez-Ayuso, A. Garcia-Sanchez, X. Querol, Purification of metal electroplating waste waters using zeolites, Water Res., 37 (2003) 4855–4862.
  12. B. Biškup, B. Subotic, Kinetic analysis of the exchange processes between sodium ions from zeolite A and cadmium, copper and nickel ions from solutions, Sep. Purif. Technol., 37 (2004) 17–31.
  13. D. Nibou, H. Mekatel, S. Amokrane, M. Barkat, M. Trari, Adsorption of Zn2+ ions onto NaA and NaX zeolites: kinetic, equilibrium and thermodynamic studies, J. Hazard. Mater., 173 (2010) 637–646.
  14. V. Hernandez-Montoya, M.A. Perez-Cruz, D.I. Mendoza-Castillo, M.R. Moreno-Viergen, Competitive adsorption of dyes and heavy metals on zeolitic structures, J. Environ. Manage., 16 (2013) 213–221.
  15. G. Asgari, B. Ramavandi, L. Rasuli, M. Ahmadi, Cr (VI) adsorption from aqueous solution using a surfactant-modified Iranian zeolite: characterization, optimization, and kinetic approach, Desal. Wat. Treat., 51 (2013) 6009–6020.
  16. E.S. Dragan, M.V. Dinu, Removal of copper ions from aqueous solution by adsorption on ionic hybrids based on chitosan and clinoptilolite, Ion Exch. Lett., 2 (2009) 15–18.
  17. E.S. Dragan, M.V. Dinu, D. Timpu, Preparation and characterization of novel composites based on chitosan and clinoptilolite with enhanced adsorption properties for Cu2+, Bioresour. Technol., 101 (2010) 812–817.
  18. M.V. Dinu, E.S. Dragan, Evaluation of Cu2+, Co2+ and Ni2+ ions removal from aqueous solution using a novel chitosan/clinoptilolite composite: kinetics and isotherms, Chem. Eng. J., 160 (2010) 157–163.
  19. N.H. Mthombeni, M.S. Onyango, O. Aoyi, Adsorption of hexavalent chromium onto magnetic natural zeolite-polymer composite, J. Taiwan Inst. Chem. Eng., 50 (2015) 242–251.
  20. N. Li, C. Xiao, S. An, X. Hu, Preparation and properties of PVDF/PVA hollow fiber membranes, Desalination, 250 (2010) 530–537.
  21. C.C. Huang, C.K. Lin, C.T. Lu, C.W. Lou, C.Y. Chao, J.H. Lin, Evaluation of the electrospinning manufacturing process based on the preparation of PVA composite fibres, Fibres Text. East. Eur., 17 (2009) 34–37.
  22. N.P. Gule, M. de Kwaadsteniet, T.E. Cloete, B. Klumperman, Electrospun poly(vinyl alcohol) nanofibres with biocidal additives for application in filter media, 1–properties affecting fibre morphology and characterisation, Macromol. Mater. Eng., 297 (2012) 609–617.
  23. I. Lee, C.G. Lee, J.A. Park, J.K. Kang, S.Y. Yoon, S.B. Kim, Removal of Cr(VI) from aqueous solution using alginate/polyvinyl alcohol-hematite composite, Desal. Wat. Treat., 51 (2013) 3438–3444.
  24. Y.U. Han, C.G. Lee, J.A. Park, J.K. Kang, I. Lee, S.B. Kim, Immobilization of layered double hydroxide into polyvinyl alcohol/alginate hydrogel beads for phosphate removal, Environ. Eng. Res., 17 (2012) 129–134.
  25. S. Veli, B. Pekey, Removal of copper from aqueous solutions by ion exchange resins, Fresen. Environ. Bull., 13 (2004) 244–250.
  26. C. Covarrubias, R. García, R. Arriagada, J. Yánez, M.T. Garland, Cr(III) exchange on zeolites obtained from kaolin and natural mordenite, Microporous Mesoporous Mater., 88 (2006) 220–231.
  27. S.Y. Yoon, C.G. Lee, J.A. Park, J.H. Kim, S.B. Kim, S.H. Lee, J.W. Choi, Kinetic, equilibrium and thermodynamic studies for phosphate adsorption to magnetic iron oxide nanoparticles, Chem. Eng. J., 236 (2014) 341–347.
  28. J.A. Park, S.B. Kim, C.G. Lee, S.H. Lee, J.W. Choi, Adsorption of bacteriophage MS2 to magnetic iron oxide nanoparticles in aqueous solutions, J. Environ. Sci. Health., Part A., 49 (2014) 1116–1124.
  29. M.J. Treacy, J.B. Higgins, Collection of Simulated XRD Powder Patterns for Zeolites, Elsevier, Amsterdam, The Netherlands, 2001.
  30. L.C.A. Oliveira, D.I. Petkowicz, A. Smaniotto, S.B.C. Pergher, Magnetic zeolites: a new adsorbent for removal of metallic contaminants from water, Water Res., 38 (2004) 3699–3704.
  31. A.A. Ismail, R.M. Mohamed, I.A. Ibrahim, G. Kini, B. Koopman, Synthesis, optimization and characterization of zeolite A and its ion-exchange properties, Colloids Surf., A, 366 (2010) 80–87.
  32. D. Wu, Y. Sui, S. He, X. Wang, C. Li, H. Kong, Removal of trivalent chromium from aqueous solution by zeolite synthesized from coal fly ash, J. Hazard. Mater., 155 (2008) 415–423.
  33. M. Panayotova, Kinetics and thermodynamics of copper ions removal from wastewater by use of zeolite, Waste Manage., 21 (2001) 671–676.
  34. Z. Milán, S. Montalvo, C.D.L. Pozas, O. Monroy, E. Sánchez, R. Borja, The effects of hydraulic loading and NaCl concentrations on the regeneration of exhausted homoionic natural zeolite, J. Environ. Sci. Health., Part A, 46 (2011) 596–600.
  35. K.Y. Foo, B.H. Hameed, Insights into the modeling of adsorption isotherm systems, Chem. Eng. J., 156 (2010) 2–10.
  36. R. Ocampo-Perez, R. Leyva-Ramos, J. Mendoza-Barron, R.M. Guerrero-Coronado, Adsorption rate of phenol from aqueous solution onto organobentonite: surface diffusion and kinetic models, J. Colloid Interface Sci., 364 (2011) 195–204.
  37. R. Shawabkeh, Equilibrium study and kinetics of Cu2+ removal from water by zeolite prepared from oil shale ash, Process Saf. Environ. Prot., 87 (2009) 262–266.
  38. D. Mohan, K.P. Singh, V.K. Singh, Trivalent chromium removal from wastewater using low cost activated carbon derived from agricultural waste material and activated carbon fabric cloth, J. Hazard. Mater., 135 (2006) 280–295.
  39. H. Zhang, D. Zhao, L. Chen, X.J. Yu, Investigation of Cu(II) adsorption from aqueous solutions by NKF-6 zeolite, Water Sci. Technol., 63 (2011) 395–402.
  40. S.K. Bajpai, M.K. Armo, Equilibrium sorption of hexavalent chromium from aqueous solution using iron(III)-loaded chitosan-magnetite nanocomposites as novel sorbent, J. Macromol. Sci., Pure Appl. Chem., 46 (2009) 510–520.
  41. W.H. Cheung, Y.S. Szeto, G. McKay, Intraparticle diffusion process during acid dye adsorption onto chitosan, Bioresour. Technol., 98 (2007) 2897–2904.