Insight into adsorption mechanism of cationic dye onto agricultural residues-derived hydrochars: Negligible role of π-π interaction

Hai Nguyen Tran; Sheng-Jie You; Huan-Ping Chao

Korean Journal of Chemical Engineering, Vol.34, No.6, 1708-1720, June, 2017

DOI10.1007/s11814-017-0056-7 Export Citation

Insight into adsorption mechanism of cationic dye onto agricultural residues-derived hydrochars: Negligible role of π-π interaction

Hai Nguyen Tran^{1, 2, †}, Sheng-Jie You^{2, †}, and Huan-Ping Chao^{2, †}

¹Department of Civil Engineering, Chung Yuan Christian University, Chungli 320, Taiwan
²Department of Environmental Engineering, Chung Yuan Christian University, Chungli 320, Taiwan

E-mail:, ,

Hydrochars derived from golden shower pod (GSH), coconut shell (CCH), and orange peel (OPH) were synthesized and applied to remove methylene green (MG5). The results indicated that the hydrochars possessed low specific surface areas (6.65-14.7m2/g), but abundant oxygen functionalities (1.69-2.12mmol/g). The hydrochars exhibited cellular and spherical morphologies. Adsorption was strongly dependent on the solution pH (2-10) and ionic strength (0-0.5M NaCl). Equilibrium can be quickly established in the kinetic study (60-120 min). The maximum Langmuir adsorption capacities at 30 °C followed the order GSH (59.6mg/g)>CCH (32.7mg/g)>OPH (15.6mg/g)> commercial glucose-prepared hydrochar (12.6mg/g). The dye adsorption efficiency was determined by the concentrations of oxygen-containing functionalities on the hydrochar surface. The adsorption process occurred spontaneously (-ΔG°) and exothermically (-ΔH°). Desorption studies confirmed the reversible adsorption process. Oxygenation of the hydrochar surface through a hydrothermal process with acrylic acid contributed to increasing MG5 adsorption and identifying the negligible role of π-π interaction to the adsorption process. The analysis of Fourier transform infrared spectrometry demonstrated that the aromatic C=C peak did not significantly decrease in intensity or shift toward higher/lower wavenumbers after adsorption, which further confirms the insignificant contribution of π-π interaction. Electrostatic attraction played a major role in adsorption mechanisms, while minor contributions were accounted for hydrogen bonding and n-π interactions. The primary adsorption mechanisms of MG5 onto hydrochar were similar to biosorbent, but dissimilar to biochar and activated carbon (i.e., π-π interaction and pore filling).

Keywords:Hydrothermal Treatment;Hydrochar;Adsorption Mechanism;Cationic Dye;Oxygenation Method;π-π Interaction

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Tran HN, You SJ, Chao HP, Waste Manage. Res., 34, 129 (2016)
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[Referenced By]

[1] Chequer FMD, de Oliveira GAR, Ferraz ERA, Cardoso JC, Zanoni MVB, de Oliveira DP, Eco-friendly Textile Dyeing and Finishing, INTECH Publishers, 151 (2013).

[2] Raval NP, Shah PU, Shah NK, Environ. Sci. Pollut. Res., 23, 14810 (2016)

[3] Crini G, Bioresour. Technol., 97(9), 1061 (2006)

[4] Contreras E, Sepulveda L, Palma C, Int. J. Chem. Eng., 2012, 1 (2012)

[5] Feng NC, Guo XY, Liang S, J. Hazard. Mater., 164(2-3), 1286 (2009)

[6] Tran HN, You SJ, Chao HP, Waste Manage. Res., 34, 129 (2016)

[7] Cha JS, Park SH, Jung SC, Ryu C, Jeon JK, Shin MC, Park YK, J. Ind. Eng. Chem., 40, 1 (2016)

[8] Tran HN, Wang YF, You SJ, Chao HP, Trans. IChemE Process Saf. Environ. Prot., (2017), DOI:10.1016/j.psep.2017.02.010.

[9] Tran HN, You SJ, Chao HP, J. Environ. Manage., 188, 322 (2017)

[10] Libra JA, Ro KS, Kammann C, Funke A, Berge ND, Neubauer Y, Titirici MM, Fuhner C, Bens O, Kern J, Emmerich KH, Biofuels., 2, 71 (2011)

[11] Jain A, Balasubramanian R, Srinivasan MP, Chem. Eng. J., 283, 789 (2016)

[12] Tran HN, You SJ, Chao HP, Adsorpt. Sci. Technol., (2017), DOI:10.1177/0263617416684837.

[13] Funke A, Ziegler F, Biofuel. Bioprod. Bior., 4, 160 (2010)

[14] Tran HN, Huang FC, Lee CK, Chao HP, Green Process. Synth., (2017), DOI:10.1515/gps-2016-0178.

[15] Goertzen SL, Theriault KD, Oickle AM, Tarasuk AC, Andreas HA, Carbon, 48, 1252 (2010)

[16] Sevilla M, Fuertes AB, Chem. Eur. J., 15, 4195 (2009)

[17] Sevilla M, Fuertes AB, Carbon, 47, 2281 (2009)

[18] Sevilla M, Macia-Agullo JA, Fuertes AB, Biomass Bioenerg., 35(7), 3152 (2011)

[19] Sevilla M, Fuertes AB, Mokaya R, Energy Environ. Sci., 4, 1400 (2011)

[20] Dogan M, Abak H, Alkan M, J. Hazard. Mater., 164(1), 172 (2009)

[21] Guo Y, Yang S, Fu W, Qi J, Li R, Wang Z, Xu H, Dyes Pigments, 56, 219 (2003)

[22] Lagergren S, Ksver. Veterskapsakad. Handl., 24, 1 (1898)

[23] Blanchard G, Maunaye M, Martin G, Water Res., 18, 1501 (1984)

[24] Chien SH, Clayton WR, Soil Sci. Soc. Am. J., 44, 265 (1980)

[25] Tran HN, You SJ, Chao HP, Chem. Eng. Commun., (2017), DOI:10.1016/j.watres.2017.04.014.

[26] Tran HN, You SJ, Chao HP, J. Environ. Chem. Eng., 4, 2671 (2016)

[27] Mattson JA, Mark HB, Malbin MD, Weber WJ, Crittenden JC, J. Colloid Interface Sci., 31, 116 (1969)

[28] Xing B, McGill WB, Dudas MJ, Maham Y, Hepler L, Environ. Sci. Technol., 28, 466 (1994)

[29] Radovic LR, Moreno-Castilla C, Rivera-Utrilla J, Chemistry and physics of carbon, Marcel Dekker, Inc., New York, 27, 227 (2000).

[30] Coughlin RW, Ezra FS, Environ. Sci. Technol., 2, 291 (1968)

[31] Blackburn RS, Environ. Sci. Technol., 38, 4905 (2004)

[32] Al-Ghouti MA, Khraisheh MAM, Allen SJ, Ahmad MN, J. Environ. Manage., 69, 229 (2003)

[33] Huff MD, Lee JW, J. Environ. Manage., 165, 17 (2016)

[34] Demir-Cakan R, Baccile N, Antonietti M, Titirici MM, Chem. Mater., 21, 484 (2009)

[35] Xu J, Wang L, Zhu YF, Langmuir, 28(22), 8418 (2012)