Adsorption of Anionic Dye from Aqueous Solution Using Activated Montmorillonite/Graphene Oxide/ Gelatin Composites

Document Type : Research Article


Laboratory of Organic Electrolytes and Polyelectrolytes Application (LAEPO). Department of Chemistry, Faculty of Sciences, Tlemcen University, B. P. 119 13000 Tlemcen, ALGERIA


The present work describes the adsorption of the anionic dye Congo Red (CR) by materials based on Activated Montmorillonite (AM), graphene oxide (GO), and gelatin (G). The materials were prepared and characterized by X-Ray Diffraction (XRD), infrared spectroscopy (FT-IR), and thermal analysis (ATG/DTG) in the previous study. Adsorption experiments of CR dye on GO/AM at different ratios of GO were performed to evaluate the adsorption efficiencies. The maximum adsorption capacity of anionic dye (CR) onto (GO / AM10%) composite was insufficient. To improve the adsorption capacity, a cationic-charged component such as gelatin was added to obtain a new composite (GO/AM/G). Therefore, the effects of several factors on the adsorption capacity of (GO/AM/G) composite, such as the pH of dye solution, adsorbent dosage, contact time, initial dye concentrations, temperature, and regeneration, were investigated. In addition, the kinetics of dye adsorption followed the pseudo-second-order model, and the adsorption isotherm was very well described by the Freundlich model. Afterward, the study of the temperature’s effect on the adsorption rate indicated that the reaction was exothermic with the medium disorder. The values of the free energy showed that the nature of the adsorption was physisorption. The reusability of the composites using 0.1N HCl for over six cycles indicated the economic significance of these materials as adsorbents. The fast removal rate in a wider range of pH and the easy reusability and regeneration make the composite (GO/AM/G) a prospective material for dye adsorption from aquatic environments.


Main Subjects

[1] Oladoja N.A., Headway on Natural Polymeric Coagulants in Water and Wastewater Treatment Operations,  J. Water Process Eng., 6: 174-192 (2015).
[2] Yaqoob A.A., Parveen T., Umar K., Ibrahim M.N.M., Role of Nanomaterials in the Treatment of Wastewater: A Review, Water (Switzerland), 12(2): 1-30 (2020).
[4] Ngulube T., Gumbo J.R., Masindi V., Maity A., An Update on Synthetic Dyes Adsorption onto Clay Based Minerals: A State-of-Art Review, J Environ Manage, 191: 35-57 (2017).
[6] Baouch Z., Benabadji K.I., Bouras B., Chemistry Adsorption of Different Dyes from Aqueous Solutions Using Organo-ClayIran Chem Soc, 8(4): 767-787 (2020).
[7] Saravanan S., Chawla A., Vairamani M., Sastry T.P., Subramanian K.S., Selvamurugan N., Scaffolds Containing Chitosan, Gelatin and Graphene Oxide for Bone Tissue Regeneration in Vitro and in Vivo, Int. J. Biol. Macromol., 104: 1975-1985 (2017).
[8] Wang, QianMa Y., Qi P., Ju J., et al., Gelatin/Alginate Composite Nanofiber Membranes For Effective and Even Adsorption of Cationic Dyes, Compos. Part B Eng., 162: 671-677 (2019).
[9] Boudia S.M., Benabadji K.I., Bouras B., Graphene Oxide/Activated Clay/Gelatin Composites: Synthesis, Characterization and Properties, Phys. Chem. Res., 10(1): 143-150 (2022).
[10] Chang Y.S., et al., Adsorption of Cu(II) and Ni(II) Ions from Wastewater onto Bentonite and Bentonite/GO Composite, Environ. Sci. Pollut. Res, 27(26): 33270–33296 (2020).
[11] Sanaa M.B., Benabadji K. I., Bouras B., Graphene Oxide/Activated Clay/Gelatin Composites: Synthesis, Characterization and Properties, Phys. Chem. Res., 10(1): 143-150 (2022).
[12] Liu H., Xie S., Liao J., Yan T., Liu Y., Tang X., Novel Graphene Oxide/Bentonite Composite for Uranium(VI) Adsorption from Aqueous  Solution, J. Radioanal Nucl. Chem., 317(3): 1349-1360 (2018).
[13] Li W., Ma Q., Bai Y., Xu D., Wu M., Ma H., Facile Fabrication of Gelatin/Bentonite Composite Beads For Tunable Removal of Anionic and Cationic Dyes, Chem. Eng. Res. Des., 134: 336-346 (2018).
[15] Yang M., Liu X., Qi Y., Sun W., Men Y., Preparation of κ-Carrageenan/Graphene Oxide Gel Beads and their Efficient Adsorption for Methylene Blue, J. Colloid Interface Sci., 506: 669-677 (2017).
[16] Zhang C., Luan J., Chen W., Ke X., Zhang H., Preparation of Graphene Oxide-Montmorillonite Nanocomposite and Its Application in Multiple-Pollutants Removal from Aqueous Solutions, Water Sci. Technol., 79(2): 323-333 (2019).
[17] Djebri N., Boutahala M., Chelali N.E., Boukhalfa N., Zeroual L., Enhanced Removal of Cationic Dye
by Calcium Alginate/Organobentonite Beads: Modeling, Kinetics, Equilibriums, Thermodynamic and Reusability Studies,
Int J Biol Macromol, 92: 1277-1287 (2016).
[18] Buttersack C., Modeling of Type IV and v Sigmoidal Adsorption Isotherms, Phys. Chem. Chem. Phys., 21(10): 5614-5626 (2019).
[19] Das S.K., Chatterjee M.K., Specific Surfaces and Heat of Adsorption of Some Indian Clays by Dye Adsorption Technique, Bulletin of Materials Science, 16(3): 205-211(1993)
[20] Sanchooli Moghaddam M., Marziyeh S., Taghavi M., Cadmium Removal from Aqueous Solutions Using Saxaul Tree Ash, Iran. J. Chem. Chem. Eng. (IJCCE), 35(3): 45-52 (2016).
[21] Chwastowski J., Staroń P., Kołoczek H., Banach M., Adsorption of Hexavalent Chromium from Aqueous Solutions Using Canadian Peat and Coconut Fiber, J. Mol. Liq., 248: 981-989 (2017).
[23] Hernández-Hernández K.A., Solache-Ríos M., Díaz-Nava M.C., Removal of Brilliant Blue FCF from Aqueous Solutions Using an Unmodified and Iron-Modified Bentonite and the Thermodynamic Parameters of the Process, Water Air Soil. Pollut., 224(5): 1-11 (2013).
[24] Naseri., Abdolhossein., Barati R., Rasoulzadeh F.,  Studies on Adsorption of Some Organic Dyes from Aqueous Solution onto Graphene Nanosheets, Iran. J. Chem. Chem. Eng. (IJCCE), 34(2):51-60 (2015).
[25] Inglezakis V.J., Zorpas A.A., Heat of Adsorption, Adsorption Energy and Activation Energy in Adsorption and Ion Exchange Systems, Desalin Water Treat, 39(1-3): 149-157 (2012).