Adsorption of Rhodamine B Dye – Thermodynamic and Equilibrium Studies


(*) Corresponding author


Authors' affiliations


DOI's assignment:
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)

Abstract


Calotropis gigantea bark carbon, a waste from the agricultural field, was investigated as a replacement for the current expensive methods of removing rhodamine B from aqueous solutions. Calotropis gigantea bark was collected from agricultural fields in and around Pudukkottai. It was carbonized and activated and sieved to the desired particle size. The 50 ml conical flasks containing solution and Calotropis gigantea bark carbon were shaken at room temperature (30+20C). The pH of values of solution was adjusted by addition of HNO3 and NaOH. The batch study indicated that initial pH of aqueous solution considerably affects the dye removal. While the removal efficiency decreased with increasing initial concentration, it increased with increasing adsorbent concentration. The linear forms of the Langmuir and Freundlich models result indicated that the Langmuir adsorption isotherm fitted the data better than the Freundlich adsorption isotherm. Adsorption of the dye onto Calotropis gigantea bark carbon was favorable sorption. Therefore, Calotropis gigantea bark carbon, the low-cost is suitable for use as adsorbent for rhodamine B under this investigation
Copyright © 2010 Praise Worthy Prize - All rights reserved.

Keywords


Activated Carbon (CGC); Rhodamine B; Adsorption Isotherm; Adsorption Kinetics; Thermodynamic Parameters; Intra-Particle Diffusion and Regeneration Pattern

Full Text:

PDF


References


S.Arivoli, Kinetic and thermodynamic studies on the adsorption of some metal ions and dyes onto low cost activated carbons, Ph D. Thesis, Dept. of Chem. Gandhigram Rural University, Gandhigram, 2007.

G.Sekaran, K.A.Shanmugasundaram, M.Mariappan, K.V. Raghavan, Adsorption of dyes by buffing dust of leather industry, Indian J. Chem. Technol., Volume 2, 1995, pages 311-315.

K.Selvarani, Studies on Low cost Adsorbents for the removal of organic and Inorganics from Water, Ph D. Thesis, Dept. of Chem., Regional Engineering College, Tiruchirappalli, 2000.

Y.F.Jia, K.K.Thomas, Adsorption of metal ion on nitrogen surface functional groups in activated carbon, Langmuir, Volume 18, 2002, pages 470-478.

C.Namasivayam, R.T. Yamuna, Adsorption of direct red by biogas residual slurry, Environ. Pollut.,Volume 89 (Issue 1),1995, pages 1-7.

C.Namasivayam, N.Muniasamy, K.Gayathri, M.Rani, K. Renganathan, Removal of dyes from aqueous solution by cellulosic waste orange peel, Biores. Technol.,Volume 57, 1996, pages 37-43.

I. Langmuir, Adsorption of gases on plane surfaces of glass, mica and platinum, J. Amer. Chem. Soc., Volume 40, 1918, pages 1361-1403.

H. Freundlich, Adsorption in solutions, Z. Phys. Chemie., Volume 57, 1906, pages 384-470.

D.G. Krishna, G.Bhattacharyya, Adsorption of methylene blue on kaolinite, Appl. Clay. Sci., Volume 20 (Issue 6), 2002, pages 295-300.

S. Arivoli, M.Viji Jain, T. Rajachandrasekar, Cobalt adsorption on a low cost carbon-Kinetic, equilibrium and mechanistic studies, Mat. Sci. Res. India, Volume 3, 2006, pages 241-250.

S. Arivoli, M. Hema, Comparative study on the adsorption kinetics and thermodynamics of dyes onto acid activated low cost carbon, Intern. J. Phys. Sci., Volume 2, 2007, pages 10-17.

S. Arivoli, B.R.Venkatraman, T. Rajachandrasekar, M. Hema, Adsorption of ferrous ion from aqueous solution by low cost activated carbon obtained from natural plant material, Res. J. Chem. Environ., Volume 17,2007, pages 70-78.

G. Renmin, S. Yingzhi, C. Jian, L. Huijun, Y. Chao, Effect of chemical modification on dye adsorption capacity of peanut hull, Dyes and Pigments, Volume 67, 2005, pages 175-181.

V. Vadivelan, K. Vasanthkumar, Equilibrium, kinetics, mechanism and process design for the sorption of methylene blue onto rice husk, J. Colloid. Interf. Sci., Volume 286, 2005, pages 90-100.

W.J. Weber, Principle and Application of Water Chemistry, (Edited by Faust S D and Hunter J V Wiley, New York, 1967).

Yupeng Guo, Jingzhu Zhao, Hui Zhang, Shaofeng Yang, Zichen Wang, Hongding Xu, Use of rice husk based porous carbon for the adsorption Rhodamine B from aqueous solution, Dyes and Pigments, Volume 66, 2005, pages 123-128.

S. Arivoli, K. Kalpana, R. Sudha, T. Rajachandrasekar, Comparative study on the adsorption kinetics and thermodynamics of metal ions onto acid activated low cost carbon, E. J. Chem., Volume 4, 2007, pages 238-254.

M.K. Sreedhar, T.S. Anirudhan, Mercury (II) adsorption of desorption characteristics of coconut husk based carbon- Kinetics and self diffusion, Indian J. Environ. Protect., Volume 19, 1999, pages 8.


Refbacks

  • There are currently no refbacks.


Please send any question about this web site to info@praiseworthyprize.com
Copyright © 2005-2024 Praise Worthy Prize