Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Adsorption Kinetics and Thermodynamics of Brilliant Blue FCF Dye onto Coconut Shell Based Activated Carbon

야자계 활성탄에 의한 Brilliant Blue FCF 염료의 흡착 동력학 및 열역학에 관한 연구

  • Lee, Jong Jib (Division of chemical Engineering, Kongju National University)
  • 이종집 (공주대학교 화학공학부)
  • Received : 2015.02.02
  • Accepted : 2015.03.03
  • Published : 2015.06.01
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Abstract

Adsorption of brilliant blue FCF dye from aqueous solution using coconut shell based activated carbon was investigated. Batch experiments were carried out as function of adsorbent dose, initial concentration, contact time and temperature. The equilibrium adsorption data were analyzed by Langmuir and Freundlich model. The results indicate that Freundlich model provides the best correlation of the experimental data. Base on the estimated Freundlich constant (1/n=0.129~0.212), this process could be employed as effective treatment method. Adsorption kinetics experimental data were modeled using the pseudo-first-order and pseudo-second-order kinetic equation. It was shown that pseudo-second-order kinetic equation could best describe the adsorption kinetics. Base on the negative Gibbs free energy value (-4.81~-10.33 kJ/mol) and positive enthalpy value (+78.59 kJ/mol) indicate that the adsorption is spontaneous and endothermic process.

야자계 활성탄을 사용하여 수용액으로부터 brilliant blue FCF 염료의 흡착에 대해 조사하였다. 회분식 실험은 흡착제의 양, 초기농도와 접촉시간과 온도를 흡착변수로 사용하여 수행하였다. 흡착평형자료는 Langmuir와 Freundlich 식을 사용하여 해석하였으며, Freundlich 식이 더 좋은 일치도를 나타냈다. 평가된 Freundlich 상수(1/n=0.129~0.212)로부터 활성탄에 의한 brilliant blue FCF의 흡착조작이 적절한 처리방법이 될 수 있음을 알았다. 흡착속도실험자료를 유사일차반응속도식과 유사이차반응속도식에 적용해 본 결과, 흡착동력학은 유사이차반응속도식에 잘 맞는 것으로 나타났다. 음수값의 Gibbs 자유에너지(-4.81~-10.33 kJ/mol)와 양수값의 엔탈피(+78.59 kJ/mol)는 흡착이 자발적이고 흡열공정으로 진행된다는 것을 나타낸다.

Keywords

References

  1. Korea Food & Drug Administration, "Safety Assessment of Food Additives by Combined Exposure: Five Tar Food Colors," Seoul, pp.14-15(2007).
  2. Korea Food & Drug Administration, "Dietary Intake of Food Additive by Korean Population-Coal Tar Dye, Combined Diet Intake," Hanhakmunhwa, Seoul, pp.120-131(2006).
  3. Baek, H. H., Kwon, H. C., Choi, S. H. and Lee, K. W., "Safety of Food Additives," Korean Food Safety Reserch Institute, Seoul, pp. 47-84(2009).
  4. Ketelsen, H. and Meyer-Windel, S., "Adsorption of Brilliant Blue FCF by Soils," Geoderma, 90, 131-145(1999). https://doi.org/10.1016/S0016-7061(98)00119-0
  5. German-Heins, J. and Flury, M., "Sorption of Brilliant Blue FCF in Soils as Affected by pH and Ionic Strength," Geoderma, 97, 87-101(2000). https://doi.org/10.1016/S0016-7061(00)00027-6
  6. Gupta, V. K., Mittal, A., Krishnan, L. and Mittal, J., "Adsorption Treatment and Recovery of the Hazardous Dye, Brilliant Blue FCF, over Bottom Ash and De-oiled Soya," J. Colloid Interf. Sci. 293, 16-26(2006). https://doi.org/10.1016/j.jcis.2005.06.021
  7. Wu, Z., Joo, H. and Lee, K., "Kinetics and Thermodynamics of the Organic Dye Adsorption on the Mesoporous Hybrid Xerogel," Chem. Eng. J., 112, 227-236(2005). https://doi.org/10.1016/j.cej.2005.07.011
  8. Mittal, A., "Use of Hen Feathers as Potential Adsorbent for the Removal of a Hazardous Dye, Brilliant Blue FCF, from Wastewater," J. Hazard. Mater., B128, 233
  9. Mahmoudi, K., Hosni, K., Hamdi, N. and Srasra, E., "Kinetics and Equilibrium Studies on Removal of Methylene Blue and Methyl Orange by Adsorption Onto Activated Carbon Prepared from Date Pits-A Comparative Study," Korean J. Chem. Eng., 32(2), 274-283(2015). https://doi.org/10.1007/s11814-014-0216-y
  10. Lee, J. J., "Isotherm, Kinetic and Thermodynamic Characteristics for Adsorption of Congo Red by Activated Carbon," Korean Chem. Eng. Res., 53(1), 1-7(2015). https://doi.org/10.9713/kcer.2015.53.1.1
  11. Sivakumar, P. and Palanisamy, P. N., "Adsorption Studies of Basic Red 29 by a Non Conventional Activated Carbon Prepared from Euphorbia Antiquorum L," Int. J. Chem. Tech. Res, 1(3), 502-510 (2009).
  12. Monika, J., Garg, V. and Kadirvelu. D K., "Chromium (VI) Removal from Aqueous Solution, Using Sunflower Stem Waste," J. Hazard. Mater., 162, 365-372(2009). https://doi.org/10.1016/j.jhazmat.2008.05.048
  13. Ngah, W. S. W. and Hanafiah, M. A. K. M., "Adsorption of Copper on Rubber (Hevea Brasiliensis) Leaf Powder: Kinetic, Equilibrium and Thermodynamic Studies," Biochem. Eng. J., 39, 521-530(2008). https://doi.org/10.1016/j.bej.2007.11.006
  14. Dorgan, M., Alkan, M., Demirbas, O., Ozdemir, Y. and Ozmetin, C., "Adsorption Kinetics of MaxilonBlue GRL onto Sepiolite from Aqueous Solutions," Chem. Eng. J., 124, 89-101(2006). https://doi.org/10.1016/j.cej.2006.08.016

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