SavedAdd your journal

Journals / Bitlis Eren Üniversitesi Fen Bilimleri Dergisi / 2018 / Cilt: 7 - Sayı: 2

Investigation of Pb (II) Adsorption From Aqueous Solutions Using Activated Carbon Obtained From Elaeagnus Seed: Isotherm and Kinetic

İğde Çekirdeğinden Elde Edilen Aktif Karbon Kullanılarak Sulu Çözeltilerden Pb(II) Adsorpsiyonun İncelenmesi: İzoterm ve Kinetik

Ayhan Abdullah CEYHAN
Orhan BAYTAR
Ömer ŞAHİN
Pages
256–267
Publication Date
2022-10-12
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It was found that adsorption equilibrium data are consistent with Langmuir isotherm.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In our previous study, activated carbon with a BET surface area of 1836 m2 / g was obtained by the chemical activation method from elaeagnus seed.
📊
Key Findings & Data:ZnCl2was used as a activator in the synthesis of actived carbon.
💡
Conclusion & Impact:It was found that adsorption equilibrium data are consistent with Langmuir isotherm.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In our previous study, activated carbon with a BET surface area of 1836 m2 / g was obtained by the chemical activation method from elaeagnus seed. ZnCl2was used as a activator in the synthesis of actived carbon. In this study, Pb (II) adsorption from aqueous solutions was investigated using this activated carbon. For this purpose, the effects of some parameters such as solution pH, amount of activated carbon, solution initial concentration and treatment temperature Pb (II) adsorption were separately investigated. It was determined that the percentage of Pb (II) removal increases with increasing temperature and amount of activated carbon. It was found that adsorption equilibrium data are consistent with Langmuir isotherm. Thus, the maximum adsorption capacity (qmax) was found as 86.207 mg.g-1 at pH = 4. The adsorption kinetics of the aqueous solution Pb (II) were found to be consistent with the Elovich kinetic model. According to the results of the particle diffusion model, it was determined that the adsorption process is performed in more than one step and the third step has the smallest diffusion coefficient (1,455) of the diffusion controlling step.

Özet

Bu çalışmada, önceki çalışmamızda ZnCI2 aktifleştiricisi kullanılarak kimyasal aktivasyon yöntemi ile iğdeçekirdeğinden elde edilen 1836 m2/g BET yüzey alanına sahip aktif karbon kullanılarak sulu çözeltilerden Pb(II)adsorpsiyonu incelenmiştir. Bu amaçla, çözelti pH’ı, aktif karbon miktarı, çözelti başlangıç derişimi ve işlemsıcaklığı parametrelerinin Pb(II) adsorpsiyonuna etkileri ayrı ayrı incelenmiştir. Artan sıcaklık ve aktif karbonmiktarı ile Pb(II) giderim yüzdesinin arttığı belirlenmiştir. Adsorpsiyon denge verilerinin Langmuir izotermineuyduğu tespit edilmiş olup, maksimum adsorpsiyon kapasitesi (qmaks) çözelti başlangıç pH değeri pH=4’de 86,207mg.g-1 olarak bulunmuştur. Sulu çözeltiden Pb(II) adsorpsiyon kinetiğinin Elovich kinetik model ile uyumluolduğu tespit edilmiştir. Partikül içi difüzyon modeli sonuçlarına göre adsorpsiyon işleminin birden fazlabasamakta gerçekleştiği ve difüzyonu kontrol eden basamağın en küçük difüzyon katsayısına (1,455) sahip olan3. basamak olduğu belirlenmiştir

🔖

Cite This Article

CEYHAN, A. A., BAYTAR, O., ŞAHİN, Ö. (2022). Investigation of Pb (II) Adsorption From Aqueous Solutions Using Activated Carbon Obtained From Elaeagnus Seed: Isotherm and Kinetic. Bitlis Eren Üniversitesi Fen Bilimleri Dergisi, Cilt: 7 - Sayı: 2, 256–267. https://ajindex.com/articles/467185

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (11)

  1. Demirbas A. 2008. Heavy metal adsorption onto agro-based waste materials, A review. Journal of Hazardous Materials, 157: 220-229.
  2. Hua M., Zhang S., Pan B., Zhang W., Lv L., Zhang Q. 2012. Heavy metal removal from water/wastewater by nanosized metal oxides, A review. Journal of Hazardous Materials, 211: 317- 331. Fu F., Wang Q. 2011. Removal of heavy metal ions from wastewaters, A review. Journal of Environmental Management, 92: 407-418.
  3. İmamoğlu M., Tekir O. 2008. Removal of copper (II) and lead (II) ions from aqueous solutions by adsorption on activated carbon from a new precursor hazelnut husks, Desalination, 228: 108-113.
  4. Saka C., Sahin Ö., Küçük M.M. 2012. Application of agricultural and forest waste adsorbents for removal of lead (II) from contaminated water, International Journal of Environmental Science and Technology, 9: 379-394.
  5. Ceyhan A.A., Şahin Ö., Baytar O., Saka C. 2013. Surface and porous characterization of activated carbon prepared from pyrolysis of biomass by two-stage procedure at low activation temperature and it's the adsorption of iodine, Journal of Analytical and Applied Pyrolysis, 104: 378-38
  6. Cagnon B., Chedeville O., Cherrier, J.F., Caqueret V., Porte C. 2011. Evolution of adsorption kinetics and isotherms of gallic acid on an activated carbon oxidized by ozone: Comparison to the raw material, Journal of the Taiwan Institute of Chemical Engineers, 42 (6): 996-1003. ] Weber W.J., Morris J.C. 1963. Kinetics of adsorption on carbon from solution, J. Sanitary Eng. Div, 89 (2): 31-60. Langmuir I. 1918. The adsorption of gases on plane surfaces of glass, mica and platinum, J. Am. Chem. Soc, 40: 1361-1368. Weber T.W. 1974.
  7. Chakkravorti, R.K., Pore and solid diffusion models for fixedbed adsorbers, AIChE J., 20: 228-238. Freundlich H.M.F. 1906.
  8. Over the adsorption in solution, J. Phys. Chem, 57: 385-470.
  9. Temkin M.I., Pyzhev V. 1940. Kinetics of ammonia synthesis on promoted iron catalyst, Acta Physiochim, 12: 327-356.
  10. De Luna M.D.G., Flores E.D., Genuino D.A.D., Futalan C.M., Wan M.W. 2013. Adsorption of Eriochrome Black T (EBT) dye using activated carbon prepared from waste rice hullsOptimization, isotherm and kinetic studies, Journal of the Taiwan Institute of Chemical Engineers, 44 (4): 646-653.
  11. Kumar K.V., Porkodi K., Rocha F., 2008. Isotherms and thermodynamics by linear and non-linear regression analysis for the sorption of methylene blue onto activated carbon: comparison of various error functions, J Hazard Mater, 151: 794. Tan I.W.