1. X. Guo, B. Du, Q. Wei, J. Yang, L. Hu, L. Yan, W. Xu, Synthesis of amino functionalized magnetic graphenes composite material and its application to remove Cr(VI), Pb(II), Hg(II), Cd(II) and Ni (II) from contaminated water, J. Hazard. Mater., 278 (2014) 211–220.
  2. O. Hakami, Y. Zhang, C.J. Banks, Thiol-functionalised mesoporous silica-coated magnetite nanoparticles for high efficiency removal and recovery of Hg from water, Water Res., 46 (2012) 3913–3922.
  3. H. Biester, P. Schuhmacher, G. Müller, Effectiveness of mossy tin filters to remove mercury from aqueous solution by Hg(II) reduction and Hg(0) amalgamation, Water Res., 34 (2000) 2031–2036.
  4. C. Green-Ruiz, Mercury(II) removal from aqueous solutions by nonviable Bacillus sp. from a tropical estuary, Bioresour. Technol., 97 (2006) 1907–1911.
  5. P. Miretzky, A.F. Cirelli, Hg(II) removal from water by chitosan and chitosan derivatives: a review, J. Hazard. Mater., 167 (2009) 10–23.
  6. R. Li, L. Liu, F. Yang, Removal of aqueous Hg(II) and Cr(VI) using phytic acid doped polyaniline/cellulose acetate composite membrane, J. Hazard. Mater., 280 (2014) 20–30.
  7. M. Mureseanu, A. Reiss, N. Cioatera, I. Trandafir, V. Hulea, Mesoporous silica functionalized with 1-furoyl thiourea urea for Hg(II) adsorption from aqueous media, J. Hazard. Mater., 182 (2010) 197–203.
  8. L. Bulgariu, M. Ratoi, D. Bulgariu, M. Macoveanu, Adsorption potential of mercury(II) from aqueous solutions onto Romanian peat moss, J. Environ. Sci. Health., Part A, 44 (2009) 700–706.
  9. A. Bhattacharya, T. Naiya, S. Mandal, S. Das, Adsorption, kinetics and equilibrium studies on removal of Cr(VI) from aqueous solutions using different low-cost adsorbents, Chem. Eng. J., 137 (2008) 529–541.
  10. M. Dehghani, M.A. Shiri, S. Shahsavani, N. Shamsedini, M. Nozari, Removal of Direct Red 81 dye from aqueous solution using neutral soil containing copper, Desal. Water Treat., 86 (2017) 213–220.
  11. M. Dehghani, M. Nozari, I. Golkari, N. Rostami, M.A. Shiri, Adsorption and kinetic studies of hexavalent chromium by dehydrated Scrophularia striata stems from aqueous solutions, Desal. Water Treat., 125 (2018) 81–92.
  12. M. Dehghani, M. Nozari, A. Fakhraei Fard, M. Ansari Shiri, N. Shamsedini, Direct red 81 adsorption on iron filings from aqueous solutions; kinetic and isotherm studies, Environ. Technol., 40 (2019) 1705–1713.
  13. M. Rezaie-Tavirani, S.A. Mortazavi, M. Barzegar, S.H. Moghadamnia, M.B. Rezaee, Study of anti cancer property of Scrophularia striata extract on the human astrocytoma cell line (1321), Iran. J. Pharm. Res., 9 (2010) 403–410.
  14. A.K. Jha, U. Kumar, Studies on removal of heavy metals by Cymbopogon flexuosus, Int. J. Agric. Environ. Biotechnol., 10 (2017) 89–92.
  15. B.V. Tangahu, S.R. Sheikh Abdullah, H. Basri, M. Idris, N. Anuar, M. Mukhlisin, A review on heavy metals (As, Pb, and Hg) uptake by plants through phytoremediation, Int. J. Chem. Eng., 2011 (2011) 1–31.
  16. R. Zhang, B. Wang, H. Ma, Studies on chromium(VI) adsorption on sulfonated lignite, Desalination, 255 (2010) 61–66.
  17. R. Bennicelli, Z. Stępniewska, A. Banach, K. Szajnocha, J. Ostrowski, The ability of Azolla caroliniana to remove heavy metals (Hg(II), Cr(III), Cr(VI)) from municipal waste water, Chemosphere, 55 (2004) 141–146.
  18. N.K. Hamadi, X.D. Chen, M.M. Farid, M.G. Lu, Adsorption kinetics for the removal of chromium(VI) from aqueous solution by adsorbents derived from used tyres and sawdust, Chem. Eng. J., 84 (2001) 95–105.
  19. F. Gorzin, A.A. Ghoreyshi, Synthesis of a new low-cost activated carbon from activated sludge for the removal of Cr(VI) from aqueous solution: equilibrium, kinetics, thermodynamics and desorption studies, Korean J. Chem. Eng., 30 (2013) 1594–1602.
  20. M. Aslam, S. Rais, M. Alam, A. Pugazhendi, Adsorption of Hg(II) from aqueous solution using Adulsa (Justicia adhatoda) leaves powder: kinetic and equilibrium studies, J. Chem., 2013 (2013) 1–11.
  21. D.K. Mondal, B.K. Nandi, M. Purkait, Removal of mercury(II) from aqueous solution using bamboo leaf powder: equilibrium, thermodynamic and kinetic studies, J. Environ. Chem. Eng., 1 (2013) 891–898.
  22. M.Y. Arıca, G. Bayramogˇ lu, M. Yılmaz, S. Bektaş, Ö. Genç, Biosorption of Hg2+, Cd2+, and Zn2+ by Ca-alginate and immobilized wood-rotting fungus Funalia trogii, J. Hazard. Mater., 109 (2004) 191–199.
  23. G. Sharma, D. Pathania, M. Naushad, Preparation, characterization, and ion exchange behavior of nanocomposite polyaniline zirconium(IV) seleno tungstophosphate for the separation of toxic metal ions, Ionics, 21 (2015) 1045–1055.
  24. L. Levankumar, V. Muthukumaran, M. Gobinath, Batch adsorption and kinetics of chromium(VI) removal from aqueous solutions by Ocimum americanum L. seed pods, J. Hazard. Mater., 161 (2009) 709–713.
  25. M. Bansal, D. Singh, V. Garg, A comparative study for the removal of hexavalent chromium from aqueous solution by agriculture wastes’ carbons, J. Hazard. Mater., 171 (2009) 83–92.
  26. A.K. Giri, R. Patel, S. Mandal, Removal of Cr(VI) from aqueous solution by Eichhornia crassipes root biomass-derived activated carbon, Chem. Eng. J., 185 (2012) 71–81.
  27. M.H. Dehghani, D. Sanaei, I. Ali, A. Bhatnagar, Removal of chromium(VI) from aqueous solution using treated waste newspaper as a low-cost adsorbent: kinetic modeling and isotherm studies, J. Mol. Liq., 215 (2016) 671–679.
  28. M. Dehghani, S. Nasseri, M. Karamimanesh, Removal of 2,4-dichlorophenolyxacetic acid (2,4-D) herbicide in the aqueous phase using modified granular activated carbon, J. Environ. Health. Sci. Eng., 12 (2014) 28.
  29. A. Shukla, Y.-H. Zhang, P. Dubey, J. Margrave, S.S. Shukla, The role of sawdust in the removal of unwanted materials from water, J. Hazard. Mater., 95 (2002) 137–152.
  30. M. Monier, Adsorption of Hg2+, Cu2+ and Zn2+ ions from aqueous solution using formaldehyde cross-linked modified chitosan–thioglyceraldehyde Schiff’s base, Int. J. Biol. Macromol., 50 (2012) 773–781.
  31. M. Monier, D. Ayad, A. Sarhan, Adsorption of Cu(II), Hg(II), and Ni(II) ions by modified natural wool chelating fibers, J. Hazard. Mater., 176 (2010) 348–355.
  32. N. Saifuddin, A. Raziah, Removal of heavy metals from industrial effluent using Saccharomyces cerevisiae (baker’s yeast) immobilized in chitosan/lignosulphonate matrix, J. Appl. Sci. Res., 3 (2007) 2091–2099.
  33. P. Mokhtari, M. Ghaedi, K. Dashtian, M. Rahimi, M. Purkait, Removal of methyl orange by copper sulfide nanoparticles loaded activated carbon: kinetic and isotherm investigation, J. Mol. Liq., 219 (2016) 299–305.
  34. A.I. Zouboulis, N.K. Lazaridis, K.A. Matis, Removal of toxic metal ions from aqueous systems by biosorptive flotation, J. Chem. Technol. Biotechnol., 77 (2002) 958–964.
  35. J.C. Igwe, A. Abia, C. Ibeh, Adsorption kinetics and intraparticulate diffusivities of Hg, As and Pb ions on unmodified and thiolated coconut fiber, Int. J. Environ. Sci. Technol., 5 (2008) 83–92.
  36. M. Li, B. Li, L. Zhou, Y. Zhang, Q. Cao, R. Wang, H. Xiao, Fluorescence-sensitive adsorbent based on cellulose using for mercury detection and removal from aqueous solution with selective “on-off” response, Int. J. Biol. Macromol., 132 (2019) 1185–1192.
  37. E.A. Dil, M. Ghaedi, G.R. Ghezelbash, A. Asfaram, M.K. Purkait, Highly efficient simultaneous biosorption of Hg2+, Pb2+ and Cu2+ by Live yeast Yarrowia lipolytica 70562 following response surface methodology optimization: kinetic and isotherm study, J. Ind. Eng. Chem., 48 (2017) 162–172.
  38. Y.-M. Hao, C. Man, Z.-B. Hu, Effective removal of Cu(II) ions from aqueous solution by amino-functionalized magnetic nanoparticles, J. Hazard. Mater., 184 (2010) 392–399.
  39. T.K. Naiya, A.K. Bhattacharya, S.K. Das, Adsorption of Cd(II) and Pb(II) from aqueous solutions on activated alumina, J. Colloids Interface Sci., 333 (2009) 14–26.
  40. J. Hu, G. Chen, I.M. Lo, Removal and recovery of Cr(VI) from wastewater by maghemite nanoparticles, Water Res., 39 (2005) 4528–4536.
  41. M. Ghaedi, A. Shokrollahi, H. Tavallali, F. Shojaiepoor, B. Keshavarz, H. Hossainian, M. Soylak, M.K. Purkait, Activated carbon and multiwalled carbon nanotubes as efficient adsorbents for removal of arsenazo(ΙΙΙ) and methyl red from waste water, Toxicol. Environ. Chem., 93 (2011) 438–449.
  42. C. Lattao, X. Cao, J. Mao, K. Schmidt-Rohr, J.J. Pignatello, Influence of molecular structure and adsorbent properties on sorption of organic compounds to a temperature series of wood chars, Environ. Sci. Technol., 48 (2014) 4790–4798.
  43. D. Ghosh, M. Sinha, M. Purkait, A comparative analysis of low-cost ceramic membrane preparation for effective fluoride removal using hybrid technique, Desalination, 327 (2013) 2–13.
  44. S. Dutta, A. Bhattacharyya, P. De, P. Ray, S. Basu, Removal of mercury from its aqueous solution using charcoal-immobilized papain (CIP), J. Hazard. Mater., 172 (2009) 888–896.
  45. S.S. Hassan, N.S. Awwad, A.H. Aboterika, Removal of mercury(II) from wastewater using camel bone charcoal, J. Hazard. Mater., 154 (2008) 992–997.
  46. S.-X. Li, F.-Y. Zheng, Y. Huang, J.-C. Ni, Thorough removal of inorganic and organic mercury from aqueous solutions by adsorption on Lemna minor powder, J. Hazard. Mater., 186 (2011) 423–429.
  47. J. Goel, K. Kadirvelu, C. Rajagopal, Competitive sorption of Cu(II), Pb(II) and Hg(II) ions from aqueous solution using coconut shell-based activated carbon, Adsorpt. Sci. Technol., 22 (2004) 257–273.
  48. I. Ghodbane, O. Hamdaoui, Removal of mercury(II) from aqueous media using eucalyptus bark: kinetic and equilibrium studies, J. Hazard. Mater., 160 (2008) 301–309.
  49. H. Ghassabzadeh, A. Mohadespour, M. Torab-Mostaedi, P. Zaheri, M.G. Maragheh, H. Taheri, Adsorption of Ag, Cu and Hg from aqueous solutions using expanded perlite, J. Hazard. Mater., 177 (2010) 950–955.
  50. Y. Liu, X. Sun, B. Li, Adsorption of Hg2+ and Cd2+ by ethylenediamine modified peanut shells, Carbohydr. Polym., 81 (2010) 335–339.