1. G. Crini, Non-conventional low-cost adsorbents for dye removal: a review, Bioresour. Technol., 97 (2006) 1061–1085.
  2. L.M. Zhou, J.Y. Jin, Z.R. Liu, X.Z. Liang, C. Shang, Adsorption of acid dyes from aqueous solutions by the ethylenediaminemodified magnetic chitosan nanoparticles, J. Hazard. Mater., 185 (2011) 1045–1052.
  3. E. Makhado, S. Pandey, P.N. Nomngongo, J. Ramontja, Preparation and characterization of xanthan gum-Cl-poly (acrylic acid)/O-MWCNTs hydrogel nanocomposite as highly effective re-usable adsorbent for removal of methylene blue from aqueous solutions, J. Colloid Interface Sci., 513 (2018) 700–714.
  4. S. Pandey, J.Y. Do, J. Kim, M. Kang, Fast and highly efficient removal of dye from aqueous solution using natural locust bean gum based hydrogels as adsorbent, Int. J. Biol. Macromolecules, 143 (2020) 60–75.
  5. S. Pandey, J.Y. Do, J. Kim, M. Kang, Fast and highly efficient catalytic degradation of dyes using κ-carrageenan stabilized silver nanoparticles nanocatalyst, Carbohydr. Polym., 230 (2020) 115597.
  6. G.Y. Zeng, Y. He, Y.Q. Zhan, L. Zhang, Y. Pan, C.L. Zhang, Z.X. Yu, Novel polyvinylidene fluoride nanofiltration membrane blended with functionalized halloysite nanotubes for dye and heavy metal ions removal, J. Hazard. Mater., 317 (2016) 60–72.
  7. N.G.P. Chew, S.S. Zhao, C. Malde, R. Wang, Polyvinylidene fluoride membrane modification via oxidant-induced dopamine polymerization for sustainable direct-contact membrane distillation, J. Membr. Sci., 563 (2018) 31–42.
  8. M.N. Goushki, S.A. Mousavi, M.J. Abdekhodaie, M. Sadeghi, Free radical graft polymerization of 2-hydroxyethyl methacrylate and acrylic acid on the polysulfone membrane surface through circulation of reaction media to improve its performance and hemocompatibility properties, J. Membr. Sci., 564 (2018) 762–772.
  9. Y.F. Li, Y.L. Su, J.Y. Li, X.T. Zhao, R. Zhang, X.C. Fan, J. Zhu, Y.Y. Ma, Y. Liu, Z.Y. Jiang, Preparation of thin film composite nanofiltration membrane with improved structural stability through the mediation of polydopamine, J. Membr. Sci., 476 (2015) 10–19.
  10. J. Elbert, F. Krohm, C. Rüttiger, S. Kienle, H. Didzoleit, B.N. Balzer, T. Hugel, B. Stühn, M. Gallei, A. Brunsen, Polymermodified mesoporous silica thin films for redox-mediated selective membrane gating, Adv. Funct. Mater., 24 (2014) 1591–1601.
  11. X.-D. Zhao, H.-M. Fan, J. Luo, J. Ding, X.-Y. Liu, B.-S. Zou, Y.-P. Feng, Electrically adjustable, super adhesive force of a superhydrophobic aligned MnO2 nanotube membrane, Adv. Funct. Mater., 21 (2011) 184–190.
  12. J. Ghobadi, M. Arami, H. Bahrami, N.M. Mahmoodi, Modification of carbon nanotubes with cationic surfactant and its application for removal of direct dyes, Desal. Water Treat., 52 (2014) 4356–4368.
  13. S.N. Zheng, H.Y. Guo, F.F. Yang, B.Q. Hong, Novel organic dye sorbent: synthesis and adsorption properties of multi-walled carbon nanotubes modified with gallic amide units, Desal. Water Treat., 57 (2016) 12264–12273.
  14. J. Zhang, Z.C. Wang, X.R. Zhang, X. Zheng, Z.C. Wu, Enhanced antifouling behaviors of polyvinylidene fluoride membrane modified through blending with nano-TiO2/polyethylene glycol mixture, Appl. Surf. Sci., 345 (2015) 418–427.
  15. H. Wu, J. Mansouri, V. Chen, Silica nanoparticles as carriers of antifouling ligands for PVDF ultrafiltration membranes, J. Membr. Sci., 433 (2013) 135–151.
  16. S.B. Wang, C.W. Ng, W.T. Wang, Q. Li, L.Q. Li, A comparative study on the adsorption of acid and reactive dyes on multiwall carbon nanotubes in single and binary dye systems, J. Chem. Eng. Data, 57 (2012) 1563–1569.
  17. M. Wasim, S. Sagar, A. Sabir, M. Shafiq, T. Jamil, Decoration of open pore network in Polyvinylidene fluoride/MWCNTs with chitosan for the removal of reactive orange 16 dye, Carbohydr. Polym., 174 (2017) 474–483.
  18. N. Ghaemi, S.S. Madaeni, P. Daraei, H. Rajabi, T. Shojaeimehr, F. Rahimpour, B. Shirvani, PES mixed matrix nanofiltration membrane embedded with polymer wrapped MWCNT: fabrication and performance optimization in dye removal by RSM, J. Hazard. Mater., 298 (2015) 111–121.
  19. M. Kierkowicz, E. Pach, A. Santidrián, S. Sandoval, G. Gonçalves, E. Tobías-Rossell, M. Kalbáč, B. Ballesteros, G. Tobias, Comparative study of shortening and cutting strategies of single-walled and multi-walled carbon nanotubes assessed by scanning electron microscopy, Carbon, 139 (2018) 922–932.
  20. K.C. Park, M. Fujishige, K. Takeuchi, S. Arai, S. Morimoto, M. Endo, Inter-collisional cutting of multi-walled carbon nanotubes by high-speed agitation, J. Phys. Chem. Solids, 69 (2008) 2481–2486.
  21. Q. Liao, J. Sun, L. Gao, Adsorption of chlorophenols by multiwalled carbon nanotubes treated with HNO3 and NH3, Carbon, 46 (2008) 553–555.
  22. J. Ma, F. Yu, L. Zhou, L. Jin, M.X. Yang, J.S. Luan, Y.H. Tang, H. Fan, Z.W. Yuan, J.H. Chen, Enhanced adsorptive removal of methyl orange and methylene blue from aqueous solution by alkali-activated multiwalled carbon nanotubes, ACS Appl. Mater. Interfaces, 4 (2012) 5749–5760.
  23. G.D. Sheng, D.D. Shao, X.M. Ren, X.Q. Wang, J.X. Li, Y.X. Chen, X.K. Wang, Kinetics and thermodynamics of adsorption of ionizable aromatic compounds from aqueous solutions by as-prepared and oxidized multiwalled carbon nanotubes, J. Hazard. Mater., 178 (2010) 505–516.
  24. K.A. Wepasnick, B.A. Smith, K.E. Schrote, H.K. Wilson, S.R. Diegelmann, D.H. Fairbrother, Surface and structural characterization of multi-walled carbon nanotubes following different oxidative treatments, Carbon, 49 (2011) 24–36.
  25. Y.-C. Chiang, W.-H. Lin, Y.-C. Chang, The influence of treatment duration on multi-walled carbon nanotubes functionalized by H2SO4/HNO3 oxidation, Appl. Surf. Sci., 257 (2011) 2401–2410.
  26. W.Z. Ma, Y.C. Zhao, Y.X. Li, P. Zhang, Z. Cao, H. Yang, C.L. Liu, G.L. Tao, F.H. Gong, H. Matsuyama, Synthesis of hydrophilic carbon nanotubes by grafting poly(methyl methacrylate) via click reaction and its effect on poly(vinylidene fluoride)-carbon nanotube composite membrane properties, Appl. Surf. Sci., 435 (2018) 79–90.
  27. Z.W. Xu, J. Zhang, M.J. Shan, Y.L. Li, B.D. Li, J.R. Niu, B.M. Zhou, X.M. Qian, Organosilane-functionalized graphene oxide for enhanced antifouling and mechanical properties of polyvinylidene fluoride ultrafiltration membranes, J. Membr. Sci., 458 (2014) 1–13.
  28. X.-S. Yuan, Z.-Y. Guo, H.-Z. Geng, D.S. Rhen, L. Wang, X.-T. Yuan, J. Li, Enhanced performance of conductive polysulfone/MWCNT/PANI ultrafiltration membrane in an online fouling monitoring application, J. Membr. Sci., 575 (2019) 160–169.
  29. S.W. Li, Z.Y. Cui, L. Zhang, B.Q. He, J.X. Li, The effect of sulfonated polysulfone on the compatibility and structure of polyethersulfone-based blend membranes, J. Membr. Sci., 513 (2016) 1–11.
  30. Y.J. Yao, H. Bing, X. Feifei, C. Xiaofeng, Equilibrium and kinetic studies of methyl orange adsorption on multiwalled carbon nanotubes, Chem. Eng. J., 170 (2011) 82–89.
  31. G. Huseyin, Determination of progress in acrylic acid modification on polyvinylidene fluoride membrane by infrared spectroscopy, J. Mol. Struct., 1174 (2018) 122–126.
  32. S. Panahian, A. Raisi, A. Aroujalian, Multilayer mixed matrix membranes containing modified-MWCNTs for dehydration of alcohol by pervaporation process, Desalination, 355 (2015) 45–55.
  33. Y. Feng, K. Wang, C.H. Davies, H.T. Wang, Carbon nanotube/alumina/polyethersulfone hybrid hollow fiber membranes with enhanced mechanical and anti-fouling properties, Nanomaterials (Basel), 5 (2015) 1366–1378.
  34. J.L. Gong, B. Wang, G.M. Zeng, C.P. Yang, C.G. Niu, Q.Y. Niu, W.J. Zhou, Y. Liang, Removal of cationic dyes from aqueous solution using magnetic multi-wall carbon nanotube nanocomposite as adsorbent, J. Hazard. Mater., 164 (2009) 1517–1522.
  35. C.H. Wu, Adsorption of reactive dye onto carbon nanotubes: equilibrium, kinetics and thermodynamics, J. Hazard. Mater, 144 (2007) 93–100.
  36. C.H. Wu, Studies of the equilibrium and thermodynamics of the adsorption of Cu2+ onto as-produced and modified carbon nanotubes, J. Colloid Interface Sci., 311 (2007) 338–346.
  37. Y.J. Yao, F.F. Xu, M. Chen, Z.X. Xu, Z.W. Zhu, Adsorption behavior of methylene blue on carbon nanotubes, Bioresour. Technol., 101 (2010) 3040–3046.
  38. C. Vilela, C. Moreirinha, A. Almeida, A.J.D. Silvestre, C.S.R. Freire, Zwitterionic nanocellulose-based membranes for organic dye removal, Materials, 12 (2019) 1404.
  39. J. Guo, S. Khan, S.-H. Cho, J. Kim, Preparation and immobilization of zinc sulfide (ZnS) nanoparticles on polyvinylidene fluoride pellets for photocatalytic degradation of methylene blue in wastewater, Appl. Surf. Sci., 473 (2019) 425–432.
  40. D. Robati, B. Mirza, R. Ghazisaeidi, M. Rajabi, O. Moradi, I. Tyagi, S. Agarwal, V.K. Gupta, Adsorption behavior of methylene blue dye on nanocomposite multi-walled carbon nanotube functionalized thiol (MWCNT-SH) as new adsorbent, J. Mol. Liq., 216 (2016) 830–835.
  41. T. Ahamad, M. Naushad, G.E. Eldesoky, S.I. Al-Saeedi, A. Nafady, N.S. Al-Kadhi, A.a.H. Al-Muhtaseb, A.A. Khan, A. Khan, Effective and fast adsorptive removal of toxic cationic dye (MB) from aqueous medium using amino-functionalized magnetic multiwall carbon nanotubes, J. Mol. Liq., 282 (2019) 154–161.
  42. N.S.V. Capanema, A.A.P. Mansur, H.S. Mansur, A.C. de Jesus, S.M. Carvalho, P. Chagas, L.C. de Oliveira, Eco-friendly and biocompatible cross-linked carboxymethylcellulose hydrogels as adsorbents for the removal of organic dye pollutants for environmental applications, Environ. Technol., 39 (2018) 2856–2872.
  43. R.S. Hebbar, A.M. Isloor, Inamuddin, M.S. Abdullah, A.F. Ismail, A.M. Asiri, Fabrication of polyetherimide nanocomposite membrane with amine functionalized halloysite nanotubes for effective removal of cationic dye effluents, J. Taiwan Inst. Chem. Eng., 93 (2018) 42–53.
  44. E. Makhado, S. Pandey, J. Ramontja, Microwave assisted synthesis of xanthan gum-Cl-poly (acrylic acid) basedreduced graphene oxide hydrogel composite for adsorption of methylene blue and methyl violet from aqueous solution, Int. J. Biol. Macromol., 119 (2018) 255–269.
  45. S. Thakur, S. Pandey, O.A. Arotiba, Sol–gel derived xanthan gum/silica nanocomposite-a highly efficient cationic dyes adsorbent in aqueous system, Int. J. Biol. Macromol., 103 (2017) 596–604.
  46. S. Thakur, S. Pandey, O.A. Arotiba, Development of a sodium alginate-based organic/inorganic superabsorbent composite hydrogel for adsorption of methylene blue, Carbohydr. Polym., 153 (2016) 34–46.
  47. M. Kara, H. Yuzer, E. Sabah, M.S. Celik, Adsorption of cobalt from aqueous solutions onto sepiolite, Water Res., 37 (2003) 224–232.
  48. M. Dogan, M. Alkan, Adsorption kinetics of methyl violet onto perlite, Chemosphere, 50 (2003) 517–528.
  49. H. Nollet, M. Roels, P. Lutgen, P. Van der Meeren, W. Verstraete, Removal of PCBs from wastewater using fly ash, Chemosphere, 53 (2003) 655–665.
  50. K. Yang, B.S. Xing, Adsorption of organic compounds by carbon nanomaterials in aqueous phase: polanyi theory and its application, Chem. Rev., 110 (2010) 5989–6008.
  51. B. Pan, B. Xing, Adsorption mechanisms of organic chemicals on carbon nanotubes, Environ. Sci. Technol., 42 (2008) 9005–9012.