Adsorption of hexavalent chromium from aqueous solution onto corn cobs – activated carbon

Öz

This study evaluated the performance of a new activated carbon (CCs-AC) produced from corn cobs by boric acid activation for the effective removal of hexavalent chromium, a heavy metal with high potential to pollute the environment, from wastewater. For this purpose, with the help of parameters such as solution pH, contact time, initial Cr(VI) concentration, CCs-AC dose, desorption and temperature, the removal of Cr(VI) ions from aqueous solution by adsorption on CCs-AC was investigated from equilibrium, kinetic and thermodynamic point of view. As a result of the experiments, it was determined that the optimum solution pH was 2.0, the contact time was 4 hours, and the desorption solution was 3.0 M NaOH. From the kinetic data, it was determined that the adsorption was compatible with the pseudo-second order kinetic model and the maximum Cr(VI) adsorption capacity (123.7 mg/g) obtained from the Langmuir isotherm model showed that CCs-AC was of competitive quality with the literature. From the thermodynamic data, the positive ΔH value indicates that the adsorption is endothermic and the value of 12.00 kj/mol indicates that the adsorption is rather chemically driven. The negative ΔG value indicates that the process proceeds spontaneously with an increase in temperature, while the ΔS value indicates an increase in the amount of unused energy.

Anahtar Kelimeler

• Adsorption
• Corn cobs – activated carbon
• Equilibrium
• Hexavalent chromium
• Kinetics
• Thermodynamics

Kaynakça

1. Y. Wang, C. Peng, E. Padilla-Ortega, A. Robledo-Cabrera, A. López-Valdivieso, Cr(VI) adsorption on activated carbon: Mechanisms, modeling and limitations in water treatment, J Environ Chem Eng, 8(4), 2020, 104031.
2. S. Sujatha, R. Sivarethinamohan, A critical review of Cr(VI) ion effect on mankind and its amputation through adsorption by activated carbon, Materials Today: Proceedings, 37(2), 2021, 1158–1162.
3. WHO, Guidelines for Drinking‑water Quality, Fourth edition incorporating the first addendum, WHO Headquarters in Geneva, 2017.
4. R.C. Bansal, M. Goyal, Activated carbon adsorption, 2005, CRC Press, London, UK, Taylor and Francis.
5. Z.E. Sayın, C. Kumaş, B. Ergül, Activated carbon production from hazelnut shells (in Turkish), AKU J Sci Eng, 16, 2016, 025805(409–419).
6. C. Djilani, R. Zaghdoudi, F. Djazi, B. Bouchekima, A. Lallam, A. Modarressi, M. Rogalski, Adsorption of dyes on activated carbon prepared from apricot stones and commercial activated carbon, J Taiwan Inst Chem E, 53, 2015, 112–121.
7. M. Abbas, S. Kaddour, M. Trari, Kinetic and equilibrium studies of cobalt adsorption on apricot stone activated carbon, J Ind Eng Chem, 20(3), 2014, 745–751.
8. M. Koohestani, A. Salem, S. Salem, Decolorization of corn syrup in a dynamic system by activated carbon bed: Microwave-assisted impregnation of H3PO4 over cherry and date stones for efficient purification, Sustain Chem Pharm, 36, 2023, 101298.

9. A.C. Lua, J. Guo, Preparation and characterization of activated carbons from oil-palm stones for gas-phase adsorption, Colloid Surface A, 179(2–3), 2001, 151–162.
10. J. Serafin, B. Dziejarski, J. Sreńscek-Nazzal, An innovative and environmentally friendly bioorganic synthesis of activated carbon based on olive stones and its potential application for CO2 capture, Sustain Mater Technol, 38, 2023, e00717.
11. I. Okman, S. Karagöz, T. Tay, M. Erdem, Activated carbons from grape seeds by chemical activation with potassium carbonate and potassium hydroxide, Appl Surf Sci, 293, 2014, 138–142.
12. H. Boulika, M.E. Hajam, M.H. Nabih, I.R. Karim, N.I. Kandri, A. Zerouale, Definitive screening design applied to cationic & anionic adsorption dyes on Almond shells activated carbon: Isotherm, kinetic and thermodynamic studies, Materials Today: Proceedings, 72(7), 2023, 3336–3346.
13. D.S.G.D. Senewirathna, S. Thuraisingam, S. Prabagar, J. Prabagar, Fluoride removal in drinking water using activated carbon prepared from palmyrah (Borassus flabellifer) nut shells, Curr Res Green Sustain Chem, 5, 2022, 100304.
14. A. Putranto, Z.W. Ng, T. Hadibarata, M. Aziz, J.Y.J. Yeo, S. Ismadji, J. Sunarso, Effects of pyrolysis temperature and impregnation ratio on adsorption kinetics and isotherm of methylene blue on corn cobs activated carbons, S Afr J Chem Eng, 42, 2022, 91–97.
15. X. Zhang, S. Wu, Y. Liu, Z. Wang, H. Zhang, R. Xiao, Removal of Cr(VI) from aqueous solution by Rice-husk-based activated carbon prepared by Dual-mode heating method, Carbon Res Conver, 6(2), 2023, 76–84.
16. E.R. Raut, M.A. Bedmohata, A.R. Chaudhari, Comparative study of preparation and characterization of activated carbon obtained from sugarcane bagasse and rice husk by using H3PO4 and ZnCl2, Materials Today: Proceedings, 66(4), 2022, 1875–1884.
17. P. Paraskeva, D. Kalderis, E. Diamadopoulos, Production of activated carbon from agricultural by-products, J Chem Technol Biotechnol 83(5), 2008, 581–592.
18. T.M. Alslaibi, I. Abustan, M.A. Ahmad, A.A. Foul, A review: production of activated carbon from agricultural byproducts via conventional and microwave heating, J Chem Technol Biotechnol, 88, 2013, 1183–1190.
19. A. Gundogdu, P. Bozbeyoglu, M. Imamoglu, C. Baltaci, C. Duran, V.N. Bulut, Characterization of the adsorption mechanism of cadmium(II) and methylene blue upon corncobs activated carbon, Anal Let, 56(3), 2023, 433–448.
20. A. Sharma, N. Kumar, M. Sillanpää, P.R. Makgwane, S. Kumar, K. Kumari, Carbon nano-structures and functionalized associates: Adsorptive detoxification of organic and inorganic water pollutants, Inorg Chem Commun, 141, 2022, 109579.
21. C. Duran, D. Ozdes, A. Gundogdu, M. Imamoglu, H.B. Senturk, Tea-industry waste activated carbon, as a novel adsorbent, for separation, preconcentration and speciation of chromium, Anal Chim Acta, 688(1), 2011, 75–83.
22. H. Demiral, İ. Demiral, F. Tümsek, B. Karabacakoğlu, Adsorption of chromium(VI) from aqueous solution by activated carbon derived from olive bagasse and applicability of different adsorption models, Chem Eng J, 144(2), 2008, 188–196.
23. A.E. Nemr, Potential of pomegranate husk carbon for Cr(VI) removal from wastewater: Kinetic and isotherm studies, J. Hazard Mater 161(1), 2009, 132–141.
24. Y. Alvarez-Galvan, B. Minofar, Z. Futera, M. Francoeur, C. Jean-Marius, N. Brehm, C. Yacou, U.J. Jauregui-Haza, S. Gaspard, Adsorption of hexavalent chromium using activated carbon produced from sargassum ssp.: comparison between lab experiments and molecular dynamics simulations, Molecules, 27(18), 2022, 6040.
25. W. Liu, J. Zhang, C. Zhang, L. Ren, Preparation and evaluation of activated carbon-based iron-containing adsorbents for enhanced Cr(VI) removal: mechanism study, Chem Engin J, 189–190, 2012, 295–302.
26. H. Qiu, L. Lv, B.c. Pan, Q.j. Zhang, W.m. Zhang, Q.x. Zhang, Critical review in adsorption kinetic models. J. Zhejiang Univ. Sci. A 10, 2009, 716–724.
27. S. Mandal, J. Calderon, S.B. Marpu, M.A. Omary, S.Q. Shi, Mesoporous activated carbon as a green adsorbent for the removal of heavy metals and Congo red: characterization, adsorption kinetics, and isotherm studies, J Contam Hydrol, 243, 2021, 103869.
28. J. Wang, X. Guo, Adsorption kinetic models: physical meanings, applications, and solving methods, J Hazard Mater, 390, 2020, 122156.
29. D. Özdeş, C. Duran, S.T. Ozeken, O. Kalkisim, Y. Top, Natural and H2SO4 modified plane sawdust as a low-cost adsorbent: removal of anionic and cationic dyes from aqueous solutions, Turk J Anal Chem, 5(1), 2023, 32–42.
30. G.B. Adebayo, H.I. Adegoke, S. Fauzeeyat, Adsorption of Cr(VI) ions onto goethite, activated carbon and their composite: kinetic and thermodynamic studies, Appl Wat Sci, 10, 2020, 213.
31. M.E. Goher, A.M. Hassan, I.A. Abdel-Moniem, A.H. Fahmy, M.H. Abdo, S.M. El-Sayed, Removal of aluminum, iron and manganese ions from industrial wastes using granular activated carbon and Amberlite IR-120H, Egypt J Aqu Res, 41(2), 2015, 155–164.
32. W. Somyanonthanakun, R. Ahmed, V. Krongtong, S. Thongmee, Studies on the adsorption of Pb(II) from aqueous solutions using sugarcane bagasse-based modified activated carbon with nitric acid: kinetic, isotherm and desorption, Chem Physics Impact, 6, 2023, 100181.
33. Y. Zhou, J. Lu, Y. Zhou, Y. Liu, Recent advances for dyes removal using novel adsorbents: a review, Environ. Pollut., 252 (2019), 352–365.
34. B. Singha, S.K. Das, Biosorption of Cr(VI) ions from aqueous solutions: Kinetics, equilibrium, thermodynamics and desorption studies, Colloid Surface B, 84(1), 2011, 221–232.
35. A. Tytłak, P. Oleszczuk, R. Dobrowolski, Sorption and desorption of Cr(VI) ions from water by biochars in different environmental conditions. Environ Sci Pollut Res 22, 2015, 5985–5994.
36. E. Daneshvar, M.J. Zarrinmehr, M. Kousha, A.M. Hashtjin, G.D. Saratale, A. Maiti, M. Vithanage, A. Bhatnagar, Hexavalent chromium removal from water by microalgal-based materials: adsorption, desorption and recovery studies, Biores Technol, 293, 2019, 122064.
37. J. Bayuo, M.A. Abukari, K.B. Pelig-Ba, Desorption of chromium (VI) and lead (II) ions and regeneration of the exhausted adsorbent. Appl Water Sci, 10, 2020, 171.
38. D. Ozdes, A. Gundogdu, B. Kemer, C. Duran, M. Kucuk, M. Soylak, Assessment of kinetics, thermodynamics and equilibrium parameters of Cr(VI) biosorption onto Pinus brutia Ten, Canadian J Chem Eng, 92, 2014, 139–147.
39. M. Khormaei, B. Nasernejad, M. Edrisi, T. Eslamzadeh, Copper biosorption from aqueous solutions by sour orange residue, J Hazard Mater, 149, 2007, 269–274.
40. P. Bozbeyoglu, C. Duran, C. Baltaci, A. Gundogdu, Adsorption of methylene blue from aqueous solution with sulfuric acid activated corn cobs: equilibrium, kinetics and thermodynamics assessment, Hittite Journal of Science and Engineering, 7(3), 2020, 239–256.
41. T. Karthikeyan, S. Rajgopal, L.R. Miranda, Chromium(VI) adsorption from aqueous solution by Hevea Brasilinesis sawdust activated carbon, J Hazard Mater, 124(1-3), 2005, 192–199.
42. S. Nethaji, A. Sivasamy A.B. Mandal, Preparation and characterization of corn cob activated carbon coated with nano-sized magnetite particles for the removal of Cr (VI), Biores Technol, 134, 2013, 94–100.
43. M. Karnib, A. Kabbani, H. Holaila, Z. Olamaa, Heavy metals removal using activated carbon, silica and silica activated carbon composite, Energy Procedia, 50, 2014, 113–120.
44. S. Tang, Y. Chen, X. Ruzhen, W. Jiang, Y. Jiang, Preparation of activated carbon from corn cob and its adsorption behavior on Cr(VI) Removal, Water Sci Technol, 73(11), 2016, 2654–2661.
45. L. Khezami, R. Capart, Removal of Chromium (VI) from aqueous solution by activated carbons: kinetic and equilibrium studies, J Hazard Mater, 123, 2005, 223–231.
46. M. Kobya, Removal of Cr(VI) from aqueous solutions by adsorption onto hazelnut shell activated carbon: kinetic and equilibrium studies, Biores Technol, 91, 2004, 317–321.
47. Y. Liu, H. Shan, Y. Pang, H. Zhan, C. Zeng, Iron modified chitosan/coconut shell activated carbon composite beads for Cr(VI) removal from aqueous solution, Int J Bio Macromol, 224, 2023, 156–169.
48. A.K. Prajapati, S. Das, M.K. Mondal, Exhaustive studies on toxic Cr(VI) removal mechanism from aqueous solution using activated carbon of Aloe vera waste leaves, J Molecul Liq, 307, 2020, 112956.