1. V. Chandra, K.S. Kim, Highly selective adsorption of Hg2+ by a polypyrrole-reduced graphene oxide composite, Chem. Commun., 47 (2011) 3942–3944.
  2. A. Rahbar, S. Farjadfard, M. Leili, R. Kafaei, V. Haghshenas, B. Ramavandi, Experimental data of biomaterial derived from Malva sylvestris and charcoal tablet powder for Hg2+ removal from aqueous solutions, Data in Brief, 8 (2016) 132–135.
  3. EPA, Drinking Water Contaminants, in: National Primary Drinking Water Regulations, U.S. Environmental Protection Agency, 2015.
  4. R.F. Fard, A.A. Azimi, G.R.N. Bidhendi, Batch kinetics and isotherms for biosorption of cadmium onto biosolids, Desal. Water Treat., 28 (2011) 69–74.
  5. A. Jafari, A.H. Mahvi, S. Nasseri, A. Rashidi, R. Nabizadeh, R. Rezaee, Ultrafiltration of natural organic matter from water by vertically aligned carbon nanotube membrane, J. Environ. Health Sci. Eng., 13 (2015) 51.
  6. A. Jafari, A.H. Mahvi, H. Godini, R. Rezaee, S.S. Hosseini, Process optimization for fluoride removal from water by Moringa oleifera seed extract, Fluoride, 47 (2014) 152–160.
  7. A. Mehdinia, M. Akbari, T.B. Kayyal, M. Azad, High-efficient mercury removal from environmental water samples using di-thio grafted on magnetic mesoporous silica nanoparticles, Environ. Sci. Pollut. Res., 22 (2015) 2155–2165.
  8. M. Turan, U. Mart, B. Yüksel, M.S. Çelik, Lead removal in fixed-bed columns by zeolite and sepiolite, Chemosphere, 60 (2005) 1487–1492.
  9. M. Alvand, F. Shemirani, A Fe3O4@SiO2@graphene quantum dot core-shell structured nanomaterial as a fluorescent probe and for magnetic removal of mercury(II) ion, Microchim. Acta, (2017) 1–9.
  10. A. Dalvand, E. Gholibegloo, M.R. Ganjali, N. Golchinpoor, M. Khazaei, H. Kamani, S.S. Hosseini, A.H. Mahvi, Comparison of Moringa stenopetala seed extract as a clean coagulant with alum and Moringa stenopetala-Alum hybrid coagulant to remove direct dye from textile wastewater, Environ. Sci. Pollut. Res., 23 (2016) 1–10.
  11. A. Dalvand, R. Nabizadeh, M.R. Ganjali, M. Khoobi, S. Nazmara, A.H. Mahvi, Modeling of Reactive Blue 19 azo dye removal from colored textile wastewater using L-arginine- functionalized Fe3O4 nanoparticles: Optimization, reusability, kinetic and equilibrium studies, J. Magn. Magn. Mater., 404 (2016) 179–189.
  12. S. Ghadiri, R. Nabizadeh, A. Mahvi, S. Nasseri, A. Mesdaghinia, S. Talebi, Potential of granulated modified nanozeolites Y for MTBE removal from aqueous solutions: Kinetic and isotherm studies, Pol. J. Chem. Technol., 14 (2012) 1–8.
  13. R. Rezaee, S. Nasseri, A. Mahvi, R. Nabizadeh, S. Mousavi, A. Rashidi, A. Jafari, S. Nazmara, Fabrication and characterization of a polysulfone-graphene oxide nanocomposite membrane for arsenate rejection from water, J. Environ. Health Sci. Eng., 13 (2015) 1–11.
  14. E. Aliyari, M. Alvand, F. Shemirani, Simultaneous separation and preconcentration of lead and cadmium from water and vegetable samples using a diethylenetriamine-modified magnetic graphene oxide nanocomposite, Anal. Methods, 7 (2015) 7582–7589.
  15. D.R. Dreyer, S. Park, C.W. Bielawski, R.S. Ruoff, The chemistry of graphene oxide, Chem. Soc. Rev., 39 (2010) 228–240.
  16. M. Alvand, F. Shemirani, Preconcentration of trace cadmium ion using magnetic graphene nanoparticles as an efficient adsorbent, Microchim. Acta, 181 (2014) 181–188.
  17. Y. Li, X.-Y. Wang, X.-P. Jiang, J.-J. Ye, Y.-W. Zhang, X.-Y. Zhang, Fabrication of graphene oxide decorated with Fe3O4@SiO2 for immobilization of cellulase, J. Nanopart Res., 17 (2015) 1–12.
  18. M. Alvand, F. Shemirani, Fabrication of Fe3O4@graphene oxide core-shell nanospheres for ferrofluid-based dispersive solid phase extraction as exemplified for Cd(II) as a model analyte, Microchim. Acta, 183 (2016) 1749–1757.
  19. F. Chen, F. Yan, Q. Chen, Y. Wang, L. Han, Z. Chen, S. Fang, Fabrication of Fe3O4@SiO2@TiO2 nanoparticles supported by graphene oxide sheets for the repeated adsorption and photocatalytic degradation of rhodamine B under UV irradiation, Dalton Trans., 43 (2014) 13537–13544.
  20. M. Khazaei, S. Nasseri, M.R. Ganjali, M. Khoobi, R. Nabizadeh, A.H. Mahvi, S. Nazmara, E. Gholibegloo, Response surface modeling of lead(II) removal by graphene oxide-Fe3O4 nanocomposite using central composite design, J. Environ. Health Sci. Eng., 14 (2016) 1.
  21. H. Aslani, R. Nabizadeh, S. Nasseri, A. Mesdaghinia, M. Alimohammadi, A.H. Mahvi, N. Rastkari, S. Nazmara, Application of response surface methodology for modeling and optimization of trichloroacetic acid and turbidity removal using potassium ferrate(VI), Desal. Water Treat., 57 (2016) 25317–25328.
  22. Y. Wen, J. Li, F. Yang, W. Zhang, W. Li, C. Liao, L. Chen, Salting- out assisted liquid–liquid extraction with the aid of experimental design for determination of benzimidazole fungicides in high salinity samples by high-performance liquid chromatography, Talanta, 106 (2013) 119–126.
  23. J. Li, R. Dong, X. Wang, H. Xiong, S. Xu, D. Shen, X. Song, L. Chen, One-pot synthesis of magnetic molecularly imprinted microspheres by RAFT precipitation polymerization for the fast and selective removal of 17[small beta]-estradiol, RSC Adv., 5 (2015) 10611–10618.
  24. W.S. Hummers Jr, R.E. Offeman, Preparation of graphitic oxide, J. Am. Chem. Soc., 80 (1958) 1339–1339.
  25. D.C. Marcano, D.V. Kosynkin, J.M. Berlin, A. Sinitskii, Z. Sun, A. Slesarev, L.B. Alemany, W. Lu, J.M. Tour, Improved synthesis of graphene oxide, ACS nano, 4 (2010) 4806–4814.
  26. L.J. Cote, F. Kim, J. Huang, Langmuir−Blodgett assembly of graphite oxide single layers, J. Am. Chem. Soc., 131 (2008) 1043–1049.
  27. M. Khoobi, T.M. Delshad, M. Vosooghi, M. Alipour, H. Hamadi, E. Alipour, M.P. Hamedani, Z. Safaei, A. Foroumadi, A. Shafiee, Polyethyleneimine-modified superparamagnetic Fe3O4 nanoparticles: An efficient, reusable and water tolerance nanocatalyst, J. Magn. Magn. Mater., 375 (2015) 217–226.
  28. P. Tartaj, C.J. Serna, Synthesis of monodisperse superparamagnetic Fe/silica nanospherical composites, J. Am. Chem. Soc., 125 (2003) 15754–15755.
  29. E. Repo, EDTA-and DTPA-functionalized silica gel and chitosan adsorbents for the removal of heavy metals from aqueous solutions, in: Department of Energy and Environmental Technology, Lappeenranta University of Technology Laboratory of Green Chemistry, Mikkeli, Finland, 2011.
  30. S. Stankovich, D.A. Dikin, G.H. Dommett, K.M. Kohlhaas, E.J. Zimney, E.A. Stach, R.D. Piner, S.T. Nguyen, R.S. Ruoff, Graphenebased composite materials, Nature, 442 (2006) 282–286.
  31. M.S.L. Hudson, H. Raghubanshi, S. Awasthi, T. Sadhasivam, A. Bhatnager, S. Simizu, S. Sankar, O. Srivastava, Hydrogen uptake of reduced graphene oxide and graphene sheets decorated with Fe nanoclusters, Int. J. Hydrogen Energy, 39 (2014) 8311–8320.
  32. X. Sun, Z. Liu, K. Welsher, J.T. Robinson, A. Goodwin, S. Zaric, H. Dai, Nano-graphene oxide for cellular imaging and drug delivery, Nano Res., 1 (2008) 203–212.
  33. X. Yang, Y. Wang, X. Huang, Y. Ma, Y. Huang, R. Yang, H. Duan, Y. Chen, Multi-functionalized graphene oxide based anticancer drug-carrier with dual-targeting function and pH-sensitivity, J. Mater. Chem., 21 (2011) 3448–3454.
  34. E. Aliyari, M. Alvand, F. Shemirani, Modified surface-active ionic liquid-coated magnetic graphene oxide as a new magnetic solid phase extraction sorbent for preconcentration of trace nickel, RSC Adv., 6 (2016) 64193–64202.
  35. R.H. Myers, D.C. Montgomery, C.M. Anderson-Cook, Response surface methodology: process and product optimization using designed experiments, John Wiley & Sons, Hoboken, New Jersey, 2009.
  36. H. Turkyilmaz, T. Kartal, S.Y. Yildiz, Optimization of lead adsorption of mordenite by response surface methodology: characterization and modification, J. Environ. Health Sci. Eng., 12 (2014) 5.
  37. J. Bao, Y. Fu, Z. Bao, Thiol-functionalized magnetite/graphene oxide hybrid as a reusable adsorbent for Hg2+ removal, Nanoscale Res. Lett., 8 (2013) 1–6.
  38. L. Cui, Y. Wang, L. Gao, L. Hu, L. Yan, Q. Wei, B. Du, EDTA functionalized magnetic graphene oxide for removal of Pb(II), Hg(II) and Cu(II) in water treatment: Adsorption mechanism and separation property, Chem. Eng. J., 281 (2015) 1–10.
  39. E. Repo, J.K. Warchoł, A. Bhatnagar, M. Sillanpää, Heavy metals adsorption by novel EDTA-modified chitosan–silica hybrid materials, J. Colloid Interface Sci., 358 (2011) 261–267.
  40. H. Qiu, L. Lv, B.-c. Pan, Q.-j. Zhang, W.-m. Zhang, Q.-x. Zhang, Critical review in adsorption kinetic models, J. Zhejiang Univ., Sci., A, 10 (2009) 716–724.