Thermodynamic and kinetic study of the improvement of the adsorption efficiency of Hexavalent chromium (VI) ions by encapsulated modified prickly pear peel

H. Fodil Cherif, Z. Benmaamar, O. Benkortbi


Selected biosorbents, Prickly Pear Peels (PPP) , that have been chemically activated  by Zncl2  and encapsulated in calcium alginate beads , bear the hybrid biosorbent names CA-ZnPPP, and are used for the disposal of Cr (VI) with water-based solutions. CA-ZnPPP is characterized by FT-IR spectroscopy, and Scanning electron microscopy (SEM),subsequently Batch tests were undertaken to evaluate the impact of the variables, in particular the pH value in the first instance, the retention time, and the metal content in the course of adsorption . Langmuir’s isothermal model showed the greatest consistency with the test results and the biosorption rate of the single layer  was 16.28 mg g−1 in less than 120 min working with 1.0 g L−1  of CA-ZnPPP , and apH of 2 . The pseudo-second order kinetic pattern correctly defined the results of the adsorption dynamics. Thermodynamic parameters (ΔG°, ΔH°, and ΔS°) in a temperature range of 298–328 K, have revealed that biosorption is  exothermic and instantaneous. These values show that CA-ZnPPP is a  favorable adsorption material for the removal of Cr (VI) in  wastewater.

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Peng, S.H.; Wang, R.; Yang, L.Z.; He, L.; He, X.; Liu, X. Biosorption of copper, zinc, cadmium and chromium ions from aqueous solution by natural foxtail millet shell. Ecotoxicology and Environmental Safety 165 (2018) 61-69.

Ullah, I.; Nadeem, R.; Iqbal, M.; Manzoor , Q. Biosorption of chromium onto native and immobilized sugar cane bagasse waste biomass. Journal of Ecological Engineering 60 (2013)99-107.

Rangabhashiyam, S.; Suganya, E.; Lity, A.V.; Selvaraju, N. Equilibrium and kinetics studies of hexavalent chromium biosorption on a novel green macroalgae Enteromorpha sp. Research on chemical Intermediates 42 (2016) 1275-1294.

Martín-Lara, M.A.; Blázquez, G.; Trujillo, M.C.; Pérez, A.; Calero ,M. New treatment of real electroplating wastewater containing heavy metal ions by adsorption onto olive stone. Journal of Cleaner Production 81 (2014) 120-129.

Ali, I.H.; Alrafai, H.A. Kinetic, isotherm and thermodynamic studies on biosorption of chromium(VI) by using activated carbon from leaves of Ficus nitida . Chemistry Central Journal 10(2016) 36.

Enniya, I.; Rghioui, L.; Jourani, A. Adsorption of hexavalent chromium in aqueous solution on activated carbon prepared from apple peels. Sustainable Chemistry and Pharmacy 7(2018) 9–16.

Rangabhashiyam ,S.; Selvaraju ,N. Adsorptive remediation of hexavalent chromium from synthetic wastewater by a natural and ZnCl2 activated Sterculiaguttata shell. Journal of Molecular Liquids 207(2015) 39–49.

Dandil,S.; Akin Sahbaz, D.; Acikgoz, C. Adsorption of Cu(II) ions onto crosslinked chitosan/Waste Active Sludge Char (WASC) beads: kinetic, equilibrium, and thermodynamic study. International Journal of Biological Macromolecules 136 (2019) 668–675.

Le, T.T.N.; Le, V.T.; Dao, M.U.; Nguyen,Q.V.; Vu,T.T.; Nguyen, M.H.; Tran, D.L.; Le, H.S. Preparation of magnetic graphene oxide/chitosan composite beads for effective removal of heavy metals and dyes from aqueous solutions. Chemical Engineering Communications 206 (2019) 1337–1352.

Pan,Y.; Xie,H.; Liu,H.; Cai,P.; Xiao,H. Novel cellulose/montmorillonite mesoporous composite beads for dye removal in single and binary systems. Bioresource Technology 286 (2019) 121366.

Xie, H.; Pan,Y.; Xiao, H.; Liu, H. Preparation and characterization of amphoteric cellulose–montmorillonite composite beads with a controllable porous structure. Journal of Applied Polymer Science 136 (2019) 47941.

Dominguez, M.A.; Etcheverry, M.; Zanini, G.P. Evaluation of the adsorption kinetics of brilliant green dye onto a montmorillonite/alginate composite beads by the shrinking core model. Adsorption 25 (2019) 1387–1396.

Biswas, S.; Sen,T.K.; Yeneneh, A.M.; Meikap, B.C. Synthesis and characterization of a novel Ca-alginate-biochar composite as efficient zinc (Zn2+) adsorbent: thermodynamics, process design, mass transfer and isotherm modeling. Separation Science and Technology 54(2019)1106–1124.

Kurczewska, J.; Cegłowski, M.; Schroeder, G. Alginate/PAMAM dendrimer – halloysitebeads for removal of cationic and anionic dyes. International Journal of Biological Macromolecules 123 (2019)398–408.

Fiol,N.; Poch ,J.;Villaescusa, I . Grape stalks wastes encapsulated in calcium alginate beads for Cr(VI) removal from aqueous solutions. Separation Science and Technology 40 (2005)1013–1028.

Bajpai, S.K.; Sharma, S. Investigation of swelling/degradation behaviour of alginate beads cross linked with Ca2+ and Ba2+ ions. Reactive and Functional Polymers 59 (2004) 129–140.

Rangabhashiyam,S.; Selvaraju,N. Adsorptive remediation of hexavalent chromium from Synthetic wastewater by a natural and Zncl2 activated Sterculiaguttata shell. Journal of Molecular Liquids 207(2015)39-49.

Eaton,A.D.;Clesceri,L.S.; Greenberg,A.E. Standard Methods for the Examination of water and waste water. American Public Health Association (1995) 4-23 .

Lazaridis, N. K.; Charalambous, C. Sorptive removal of trivalent and hexavalent chromium from binary aqueous solutions by composite alginate-geothite beads. Water Research 39 (2005) 4385–4396.

Rodrigues, L. A.; Sakane, K. K.; Simonetti, E. A. N.; Thim, G. P. Cr total removal in aqueous solution by PHENOTAN AP based tannin gel (TFC). Journal of Environmental Chemical engineering 3(2015) 725–733.

Tan,X.;Gao,B.; Xu, X.; Wang, Y.; Ling, J.;Yue,Q.; Li, Q. Perchlorate uptake by wheat straw based adsorbent from aqueous solution and its subsequent biological regeneration. Chemical Engineering Journal 211-212 (2012) 37-45.

Talreja,N.; Kumar, D.; Verma, N. Removal of hexavalent chromium from water using Fegrown carbon nanofibers containing porous carbon microbeads. Journal of Water Process Engineering 3 (2014) 34-45.

Čerović,Lj.S.;Milonjić,S.K.;Todorović,M.B.; Trtanj,M.I.;Pogozhev,Y.S.; Blagoveschenskii, Y.; Levashov. E.A. Point of zero charge of different carbides .Colloids and Surfaces A: Physicochemical and Engineering Aspects 297 (2007) 1-6.

Gupta,N.; Kushwaha,A. K.; Chattopadhyaya, M. C. Application of potato (Solanum tuberosum) plant wastes for the removal of methylene blue and malachite green dye from aqueous solution. Arabian Journal of Chemistry 9 (2016) 707–716.

Sen,T. K.; Afroze, S.; Ang. H. M. Equilibrium, kinetics and mechanism of removal of methylene blue from aqueous solution by adsorption onto pine cone biomass of Pinus radiate. Water air and Soil Pollution 218 (2011) 499-515.

Vimonses , V. ; Lei, S. M. ; Jin, B. ; Chow, C. W. K.; Saint, C. Kinetic study and equilibrium isotherm analysis of Congo Red adsorption by clay materials . Chemical Engineering Journal 148 (2009) 354–364.

Langmuir, I. The adsorption of gases on plane surfaces of glass, mica and platinum. Journal of the American Chemical Society 40 (1918) 1361–1403.

Srilakshmi ,C.; Saraf, R. Ag-doped hydroxyapatite as efficient adsorbent for removal of Congo red dye from aqueous solution: Synthesis, kinetic and equilibrium adsorption isotherm analysis. Microporous and Mesoporous Materials 219 (2016) 134–144.

Sartape A. S.; Mandhare A. M.; Jadhav V. V.; Raut P. D.; Anuse M. A. Removal of malachite green dye from aqueous solution with adsorption technique using Limonia acidissima (wood apple) shell as low cost adsorbent. Arabian Journal of Chemistry 10 (2017) S3229–S3238.

Ho,Y. S.; McKay ,G. Pseudo-second order model for sorption processes. Process Biochemistry 34 (1999) 451–465.

Zhang, C. L.; Qiao, G. L.; Zhao, F.; Wang, Y. Thermodynamic and kinetic parameters of ciprofloxacin adsorption onto modified coal fly ash from aqueous solution. Journal of Molecular Liquids 163 (2011) 53–56.

Ezechi, E. H.; Kutty, S. R. M.; Malak Ahmad, A.; Isa, A. M. H. Characterization and optimization of effluent dye removal using a new low cost adsorbent: Equilibrium, kinetics and thermodynamic study. Process Safety and Environmental Protection 98 (2015) 16–32.


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