• Tam Hoang Luu Ho Chi Minh University of Technology, VNU-HCM.
  • Hung Van Nguyen Graduate University of Science and Technology,VAST. Center of Analytical Service and Experiment HCMC.
  • Nhan Thuc Chi Ha University of Science, VNU-HCM.
  • Khoa Nguyen Dang Vo Graduate University of Science and Technology,VAST.



montmorillonite, adsorption, starch.


The adsorbent is prepared by the montmorillonite co-modification with starch for the removal of Pb (II) ions from aqueous solution. The Fourier-transformed infrared (FTIR), X-ray diffraction (XRD) spectroscopies were used to determine the structure and characteristics of the adsorbent. The main factors affecting the removal of Pb (II) ions were investigated, including the effect of pH, contact time, adsorbent dosage and the initial concentration of Pb (II). Batch process can be used for adsorption and equilibrium studies. The experimental data were fitted using Freundlich and Langmuir adsorption models. The Langmuir isotherm best fitted the experimental data with R2> 0.99 and maximum Pb (II) adsorption capacity of 21.5 mg/g indicated monolayer adsorption. Kinetic studies using pseudo-first-order and pseudo-second-order rate models showed that the process complied well with the pseudo second-order rate model.


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Author Biography

Tam Hoang Luu, Ho Chi Minh University of Technology, VNU-HCM.

Materials Technology Faculty, University of Technology, VNU-HCM


K. Pytlakowska, M. Matussek, B. Hachuła, M. Pilch, K. Kornaus, M. Zubko, et al., Graphene oxide covalently modified with 2, 2′-iminodiacetic acid for preconcentration of Cr (III), Cu (II), Zn (II) and Pb (II) from water samples prior to their determination by energy dispersive X-ray fluorescence spectrometry, Spectrochimica Acta Part B: Atomic Spectroscopy, 147 (2018) 79-86.

A. A. Edathil, I. Shittu, J. H. Zain, F. Banat, and M. A. Haija, Novel magnetic coffee waste nanocomposite as effective bioadsorbent for Pb (II) removal from aqueous solutions, Journal of Environmental Chemical Engineering, 6 (2) (2018) 2390-2400.

Y. Li, P. Bai, Y. Yan, W. Yan, W. Shi, and R. Xu, Removal of Zn2+, Pb2+, Cd2+, and Cu2+ from aqueous solution by synthetic clinoptilolite, Microporous and Mesoporous Materials, 273 (2019) 203-211.

A. Masoumi, K. Hemmati, and M. Ghaemy, Low-cost nanoparticles sorbent from modified rice husk and a copolymer for efficient removal of Pb (II) and crystal violet from water, Chemosphere, 146 (2016) 253-262.

L. Semerjian, Removal of heavy metals (Cu, Pb) from aqueous solutions using pine (Pinus halepensis) sawdust: Equilibrium, kinetic, and thermodynamic studies, Environmental technology & innovation, 12 (2018) 91-103.

S. Bo, W. Ren, C. Lei, Y. Xie, Y. Cai, S. Wang, et al., Flexible and porous cellulose aerogels/zeolitic imidazolate framework (ZIF-8) hybrids for adsorption removal of Cr (IV) from water, Journal of Solid State Chemistry, 262 (2018) 135-141.

L. Sellaoui, F. E. Soetaredjo, S. Ismadji, A. Bonilla-Petriciolet, C. Belver, J. Bedia, et al., Insights on the statistical physics modeling of the adsorption of Cd2+ and Pb2+ ions on bentonite-chitosan composite in single and binary systems, Chemical Engineering Journal, 354 (2018) 569-576.

Z.-H. Hu, A. M. Omer, X. k. Ouyang, and D. Yu, Fabrication of carboxylated cellulose nanocrystal/sodium alginate hydrogel beads for adsorption of Pb (II) from aqueous solution, International journal of biological macromolecules, 108 (2018) 149-157.

K. Tohdee and L. Kaewsichan, Enhancement of adsorption efficiency of heavy metal Cu (II) and Zn (II) onto cationic surfactant modified bentonite, Journal of Environmental Chemical Engineering, 6 (2) (2018) 2821-2828.

D. S. Tong, C. W. Wu, M. O. Adebajo, G. C. Jin, W. H. Yu, S. F. Ji, et al., Adsorption of methylene blue from aqueous solution onto porous cellulose-derived carbon/montmorillonite nanocomposites, Applied Clay Science, 161 (2018) 256-264.

W. Gao, H. Dong, H. Hou, and H. Zhang, Effects of clays with various hydrophilicities on properties of starch–clay nanocomposites by film blowing, Carbohydrate polymers, 88 (1) (2012) 321-328.

K. Majdzadeh-Ardakani, A. H. Navarchian, and F. Sadeghi, Optimization of mechanical properties of thermoplastic starch/clay nanocomposites, Carbohydrate Polymers, 79 (3) (2010) 547-554.

H. Barzegar, M. H. Azizi, M. Barzegar, and Z. Hamidi-Esfahani, Effect of potassium sorbate on antimicrobial and physical properties of starch–clay nanocomposite films, Carbohydrate polymers, 110 (2014) 26-31.

H. Shao, X. Liu, Z. Zhou, B. Zhao, Z. Chen, and M. Xu, Elemental mercury removal using a novel KI modified bentonite supported by starch sorbent, Chemical Engineering Journal, 291 (2016) 306-316.