References

1. X. Qin, F. Liu, G. Wang, G. Huang, Adsorption of humic acid from aqueous solution by hematite: effects of pH and ionic strength, Environ. Earth Sci., 73 (2015) 4011–4017.
2. Q. Tao, Z. Xu, J. Wang, F. Liu, H. Wan, S. Zheng, Adsorption of humic acid to aminopropyl functionalized SBA-15, Microporous Mesoporous Mater., 131 (2010) 177–185.
3. A. Kerc, M. Bekbolet, A.M. Saatci, Effect of partial oxidation by ozonation on the photocatalytic degradation of humic acids, Int. J. Photoenergy, 5 (2003) 75–80.
4. E. Lorenc-Grabowska, G. Gryglewicz, Adsorption of lignitederived humic acids on coal-based mesoporous activated carbons, J. Colloid Interface Sci., 284 (2005) 416–423.
5. S. Han, S. Kim, H. Lim, W. Choi, H. Park, J. Yoon, T. Hyeon, New nanoporous carbon materials with high adsorption capacity and rapid adsorption kinetics for removing humic acids, Microporous Mesoporous Mater., 58 (2003) 131–135.
6. H. Tamai, T. Kakii, Y. Hirota, T. Kumamoto, H. Yasuda, Synthesis of extremely large mesoporous activated carbon and its unique adsorption for giant molecules, Chem. Mater., 8 (1996) 454–462.
7. J. Stárek, A. Zukal, J. Rathouský, Comparison of the adsorption of humic acids from aqueous solutions on active carbon and activated charcoal cloths, Carbon, 32 (1994) 207–211.
8. D. Özçimen, A. Ersoy-Meriçboyu, Characterization of biochar and bio-oil samples obtained from carbonization of various biomass materials, Renew. Energy, 35 (2010) 1319–1324.
9. W. Chen, R. Parette, J. Zou, F.S. Cannon, B.A. Dempsey, Arsenic removal by iron-modified activated carbon, Water Res., 41 (2007) 1851–1858.
10. M. Ahmad, S.S. Lee, X. Dou, D. Mohan, J.K. Sung, J.E. Yang, Y.S. Ok, Effects of pyrolysis temperature on soybean stover- and peanut shell-derived biochar properties and TCE adsorption in water, Bioresour. Technol., 118 (2012) 536–544.
11. S. Chatterjee, S.H. Woo, The removal of nitrate from aqueous solutions by chitosan hydrogel beads, J. Hazard. Mater., 164 (2009) 1012–1018.
12. M.T. Yagub, T.K. Sen, S. Afroze, H.M. Ang, Dye and its removal from aqueous solution by adsorption: a review, Adv. Colloid Interface, 209 (2014) 172–184.
13. G.O. El-Sayed, Removal of methylene blue and crystal violet from aqueous solutions by palm kernel fiber, Desalination, 272 (2011) 225–232.
14. S.B. Abdul Hamid, Z.Z. Chowdhury, S.M. Zain, Base catalytic approach: a promising technique for the activation of biochar for equilibrium sorption studies of Copper, Cu(II) ions in single solute system, Materials, 7 (2014) 2815–2832.
15. B. de Caprariis, P. De Filippis, A.D. Hernandez, E. Petrucci, A. Petrullo, M. Scarsella, M. Turchi, Pyrolysis wastewater treatment by adsorption on biochars produced by poplar biomass, J. Environ. Manage., 197 (2017) 231–238.
16. P. Peng, Y.H. Lang, X.M. Wang, Adsorption behavior and mechanism of pentachlorophenol on reed biochars: pH effect, pyrolysis temperature, hydrochloric acid treatment and isotherms, Ecol. Eng., 90 (2016) 225–233.
17. S. Yi, B. Gao, Y. Sun, J. Wu, X. Shi, B. Wu, X. Hu, Removal of levofloxacin from aqueous solution using rice-husk and woodchip biochars, Chemosphere, 150 (2016) 694–701.
18. M.I. Al-Wabel, A. Al-Omran, A.H. El-Naggar, M. Nadeem, A.R.A. Usman, Pyrolysis temperature induced changes in characteristics and chemical composition of biochar produced from conocarpus wastes, Bioresour. Technol., 131 (2013) 374–379.
19. E. Kim, C. Jung, J. Han, N. Her, C.M. Park, M. Jang, A. Son, Y. Yoon, Sorptive removal of selected emerging contaminants using biochar in aqueous solution, J. Ind. Eng. Chem., 36 (2016) 364–371.
20. W. Ding, X. Dong, I.M. Ime, B. Gao, L.Q. Ma, Pyrolytic temperatures impact lead sorption mechanisms by bagasse biochars, Chemosphere, 105 (2014) 68–74.
21. G. Zhang, Q. Zhang, K. Sun, X. Liu, W. Zheng, Y. Zhao, Sorption of simazine to corn straw biochars prepared at different pyrolytic temperatures, Environ. Pollut., 159 (2011) 2594–2601.
22. C.R. Martinez, B.L. Iverson, Rethinking the term “pi-stacking”, Chem. Sci., 3 (2012) 2191–2201.
23. K. Sun, M. Kang, Z. Zhang, J. Jin, Z. Wang, Z. Pan, D. Xu, F. Wu, B. Xing, Impact of deashing treatment on biochar structural properties and potential sorption mechanisms of phenanthrene, Environ. Sci. Technol., 47 (2013) 11473–11481.
24. W. Libbrecht, A. Verberckmoes, J.W. Thybaut, P. Van Der Voort, J. De Clercq, Soft templated mesoporous carbons: tuning the porosity for the adsorption of large organic pollutants, Carbon, 116 (2017) 528–546.
25. W. Libbrecht, A. Verberckmoes, J.W. Thybaut, P. Van Der Voort, J. De Clercq, Tunable large pore mesoporous carbons for the enhanced adsorption of humic acid, Langmuir, 33 (2017) 6769–6777.
26. M. Keiluweit, P.S. Nico, M. Johnson, and M. Kleber, Dynamic molecular structure of plant biomass-derived black carbon (biochar), Environ. Sci. Technol., 44 (2010) 1247–1253.
27. F. Ma, B. Zhao, J. Diao, Adsorption of cadmium by biochar produced from pyrolysis of corn stalk in aqueous solution, Water Sci. Technol., 74 (2016) 1335–1345.
28. Y. Yao, Y. Zhang, B. Gao, R. Chen, F. Wu, Removal of sulfamethoxazole (SMX) and sulfapyridine (SPY) from aqueous solutions by biochars derived from anaerobically digested bagasse, Environ. Sci. Pollut. Res., 25 (2018) 25659–25667.
29. N. Liu, M. Zhu, H. Wang, H. Ma, Adsorption characteristics of Direct Red 23 from aqueous solution by biochar, J. Mol. Liq., 223 (2016) 335–342.
30. D.D. Sewu, P. Boakye, S.H. Woo, Highly efficient adsorption of cationic dye by biochar produced with Korean cabbage waste, Bioresour. Technol., 224 (2017) 206–213.
31. B. Chen, Z. Chen, S. Lv, A novel magnetic biochar efficiently sorbs organic pollutants and phosphate, Bioresour. Technol., 102 (2011) 716–723.
32. A.S. Franca, L.S. Oliveira, M.E. Ferreira, Kinetics and equilibrium studies of methylene blue adsorption by spent coffee grounds, Desalination, 249 (2009) 267–272.
33. S. Maghsoodloo, B. Noroozi, A.K. Haghi, G.A. Sorial, Consequence of chitosan treating on the adsorption of humic acid by granular activated carbon, J. Hazard. Mater., 191 (2011) 380–387.
34. C. Jung, N. Phal, J. Oh, K.H. Chu, M. Jang, Y. Yoon, Removal of humic and tannic acids by adsorption-coagulation combined systems with activated biochar, J. Hazard. Mater., 300 (2015) 808–814.
35. M. Salman, B. El-Eswed, F. Khalili, Adsorption of humic acid on bentonite, Appl. Clay Sci., 38 (2007) 51–56.
36. Z. Wang, M. Gao, S. Wang, Y. Xin, D. Ma, Z. She, Z. Wang, Q. Chang, Y. Ren, Effect of hexavalent chromium on extracellular polymeric substances of granular sludge from an aerobic granular sequencing batch reactor, Chem. Eng. J., 251 (2014) 165–174.
37. L.L. Wei, K. Wang, Q.L. Zhao, J.Q. Jiang, X.J. Kong, D.J. Lee, Fractional, biodegradable and spectral characteristics of extracted and fractionated sludge extracellular polymeric substances, Water Res., 46 (2012) 4387–4396.