References

  1. M.M. Zou, S.L. Zhou, Y.J. Zhen, Y.J. Zhou, Z.Y. Jia, T.W. Guo, J.X. Wang, Cadmium pollution of soil-rice ecosystems in rice cultivation dominated regions in China: a review, Environ. Pollut., 280 (2021) 116965, doi: 10.1016/j.envpol.2021.116965.
  2. L. Chen, M.X. Zhou, J.Z. Wang, Z.Q. Zhang, C.J. Duan, X.X. Wang, S.L. Zhao, X.H. Bai, Z.J. Li, Z.M. Li, L.C. Fang,
    A global meta-analysis of heavy metal(loid)s pollution in soils near copper mines: evaluation of pollution level and probabilistic health risks, Sci. Total Environ., 835 (2022) 155441, doi: 10.1016/j.scitotenv.2022.155441.
  3. Y.Z. Zhang, M.W. Zhao, Q. Cheng, C. Wang, H.J. Li, X.G. Han, Z.H. Fan, G.Y. Su, D. Pan, Z.Y. Li, Research progress of adsorption and removal of heavy metals by chitosan and its derivatives: a review, Chemosphere, 279 (2021) 130927, doi: 10.1016/j.chemosphere.2021.130927.
  4. M.L. Zhao, H.J. Wang, J.X. Sun, R. Tang, B. Cai, X.Y. Song, X.M. Huang, J. Huang, Z.Q. Fan, Spatio-temporal characteristics of soil Cd pollution and its influencing factors: a geographically and temporally weighted regression (GTWR) method, J. Hazard. Mater., 446 (2023) 130613, doi: 10.1016/j.jhazmat.2022.130613.
  5. Y. Zhang, J.H. Qu, Y.H. Yuan, H.J. Song, Y. Liu, S. Wang, Y. Tao, Y.H. Zhao, Z.R. Li, Simultaneous scavenging of Cd(II) and Pb(II) from water by sulfide-modified magnetic pinecone-derived hydrochar, J. Cleaner Prod., 341 (2022) 130758, doi: 10.1016/j.jclepro.2022.130758.
  6. X.F. Liu, H. Yin, H. Liu, Y.H. Cai, X. Qi, Z. Dang, Multicomponent adsorption of heavy metals onto biogenic hydroxyapatite: surface functional groups and inorganic mineral facilitating stable adsorption on of Pb(II), J. Hazard. Mater., 443 (2023) 130167, doi: 10.1016/j.jhazmat.2022.130167.
  7. H.G. Zaman, L. Baloo, S.R. Kutty, M. Altaf, Post synthetic modification of NH2-(Zr-MOF) via rapid microwave-promoted synthesis for effective adsorption of Pb(II) and Cd(II), Arabian J. Chem., 16 (2023) 104122, doi: 10.1016/j.arabjc.2022.104122.
  8. Z.W. Meng, S. Huang, Z.B. Lin, Effects of modification and co-aging with soils on Cd(II) adsorption behaviors and quantitative mechanisms by biochar, Environ. Sci. Pollut. Res., 30 (2023) 8902–8915.
  9. M. Ajmal, R.A.K. Rao, S. Anwar, J. Ahmad, R. Ahmad, Adsorption studies on rice husk: removal and recovery of Cd(II) from wastewater, Bioresour. Technol., 86 (2003) 147–149.
  10. E.S. Behbahani, K. Dashtian, M. Ghaedi, Fe3O4-FeMoS4: promise magnetite LDH-based adsorbent for simultaneous removal of Pb(II), Cd(II), and Cu(II) heavy metal ions, J. Hazard. Mater., 410 (2021) 124560, doi: 10.1016/j.jhazmat.2020.124560.
  11. Z. Rahman, V.P. Singh, The relative impact of toxic heavy metals (THMs) (arsenic (As), cadmium (Cd), chromium (Cr) (VI), mercury (Hg), and lead (Pb)) on the total environment: an overview, Environ. Monit. Assess., 191 (2019) 419, doi: 10.1007/s10661-019-7528-7.
  12. G.Y. Ding, B.Y. Wang, L.Y. Chen, S.J. Zhao, Simultaneous adsorption of methyl red and methylene blue onto biochar and an equilibrium modeling at high concentration, Chemosphere, 163 (2016) 283–289.
  13. Z.K. Lin, Y.R. Yang, Z.Z. Liang, L. Zeng, A.P. Zhang, Preparation of chitosan/calcium alginate/bentonite composite hydrogel and its heavy metal ions adsorption properties, Polymers, 13 (2021) 1891, doi: 10.3390/polym13111891.
  14. X.R. Huang, H.H. Zhao, G.B. Zhang, J.T. Li, P.H. Ji, Adsorption of Cd2+ from wastewater by modified fly ash, Appl. Ecol. Environ. Res., 30 (2019) 3215–3223.
  15. W.-T. Tan, H. Zhou, S.-F. Tang, P. Zeng, J.-F. Gu, B.-H. Liao, Enhancing Cd(II) adsorption on rice straw biochar by modification of iron and manganese oxides, Environ. Pollut., 300 (2022) 118899, doi: 10.1016/j.envpol.2022.118899.
  16. Z. Zhang, T. Wang, H.X. Zhang, Y.H. Liu, B.S. Xing, Adsorption of Pb(II) and Cd(II) by magnetic activated carbon and its mechanism, Sci. Total Environ., 757 (2021) 143910, doi: 10.1016/j.scitotenv.2020.143910.
  17. S. Praveen, R. Gokulan, T.B. Pushpa, J. Jegan, Techno-economic feasibility of biochar as biosorbent for basic dye sequestration, J. Indian Chem. Soc., 98 (2021) 100107, doi: 10.1016/j.jics.2021.100107.
  18. E.M. Ahmed, Hydrogel: preparation, characterization, and applications: a review, J. Adv. Res., 6 (2015) 105–121.
  19. M. Zaheer Afzal, X.-F. Sun, J. Liu, C. Song, S.-G. Wang, A. Javed, Enhancement of ciprofloxacin sorption on chitosan/biochar hydrogel beads, Sci. Total Environ., 639 (2018) 560–569.
  20. Y. Liu, L.S. Hu, Y.J. Yao, Z.Q. Su, S.Q. Hu, Construction of composite chitosan-glucose hydrogel for adsorption of Co2+ ions, Int. J. Biol. Macromol., 139 (2019) 213–220.
  21. E. Hidayat, H. Harada, Y. Mitoma, S. Yonemura, H.I.A. Halem, Rapid removal of Acid Red 88 by zeolite/chitosan hydrogel in aqueous solution, Polymers, 14 (2022) 893, doi: 10.3390/polym14050893.
  22. X.Q. Liu, Y.Y. Zhang, Y. Liu, T. Zhang, Green method to synthesize magnetic zeolite/chitosan composites and adsorption of hexavalent chromium from aqueous solutions, Int. J. Biol. Macromol., 194 (2022) 746–754.
  23. A. Benettayeb, S. Ghosh, M. Usman, F.Z. Seihoub, I. Sohoo, C.H. Chia, M. Sillanpää, Some well-known alginate and chitosan modifications used in adsorption: a review, Water, 14 (2022) 1353, doi: 10.3390/w14091353.
  24. H.G. Zaman, L. Baloo, S.R. Kutty, K. Aziz, M. Altaf, A. Ashraf, F. Aziz, Insight into microwave-assisted synthesis of the chitosan-MOF composite: Pb(II) adsorption, Environ. Sci. Pollut. Res., 30 (2022) 6216–6233.
  25. O.A. Shabaan, H.S. Jahin, G.G. Mohamed, Removal of anionic and cationic dyes from wastewater by adsorption using multiwall carbon nanotubes, Arabian J. Chem., 13 (2020) 4797–4810.
  26. J.O. Gonçalves, K.A. da Silva, E.C. Rios, M.M. Crispim, G.L. Dotto, L.A. de Almeida Pinto, Chitosan hydrogel scaffold modified with carbon nanotubes and its application for food dyes removal in single and binary aqueous systems, Int. J. Biol. Macromol., 142 (2020) 85–93.
  27. D.C.S. Alves, J.O. Gonçalves, B.B. Coseglio, T.A.L. Burgo, G.L. Dotto, L.A.A. Pinto, T.R.S. Cadaval Jr., Adsorption of phenol onto chitosan hydrogel scaffold modified with carbon nanotubes, J. Environ. Chem. Eng., 7 (2019) 103460, doi: 10.1016/j.jece.2019.103460.
  28. M. Guo, J. Wang, C.G. Wang, P.J. Strong, P.K. Jiang, Y.S. Ok, H.L. Wang, Carbon nanotube-grafted chitosan and its adsorption capacity for phenol in aqueous solution, Sci. Total Environ., 682 (2019) 340–347.
  29. T.M. Eldeeb, A. El Nemr, M.H. Khedr, S.I. El-Dek, N.G. Imam, Novel three-dimensional chitosan-carbon nanotube–PVA nanocomposite hydrogel for removal of Cr6+ from wastewater, Desal. Water Treat., 184 (2020) 163–177.
  30. S.N. Yuan, J.Y. Zhang, Z.X. Tan, Adsorption effect and the removal mechanism of silicate composite biochar particles on cadmium in soil, Chemosphere, 303 (2022) 134970, doi: 10.1016/j.chemosphere.2022.134970.
  31. R. Foroutan, S.J. Peighambardoust, S. Ghojavand, S. Farjadfard, B. Ramavandi, Cadmium elimination from wastewater using potato peel biochar modified by ZIF-8 and magnetic nanoparticle, Colloid Interface Sci. Commun., 55 (2023) 100723, doi: 10.1016/j.colcom.2023.100723.