Adsorption Kinetics and Thermodynamics of Methyl Orange on Ethylenediamine-Modified Chitosan Magnetic Nano-Adsorbent

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Ethylenediamine-modified chitosan magnetic nano-adsorbent (EMCN) was prepared and used for the sorption of methyl orange(MO). The kinetics of the sorption fitted well with the pseudo-second-order kinetics model. The activation energy of sorption (Ea) was determined to be 16.47 kJ.mol-1. Adsorption isotherms showed that the sorption process was consistent with both Langmuir and Freundlich isotherm, and the thermodynamic parameters were calculated and indicated that the sorption process was spontaneous and exothermic. The saturated sorption capacity is 247.66, 227.58, 214.19 mg.g-1 at 5°C, 25°C, 45°C(pH=5.6),respectively.

Info:

Periodical:

Advanced Materials Research (Volumes 581-582)

Edited by:

Jimmy (C.M.) Kao, Wen-Pei Sung and Ran Chen

Pages:

273-276

Citation:

Y. H. Chen and S. Q. Hu, "Adsorption Kinetics and Thermodynamics of Methyl Orange on Ethylenediamine-Modified Chitosan Magnetic Nano-Adsorbent", Advanced Materials Research, Vols. 581-582, pp. 273-276, 2012

Online since:

October 2012

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$38.00

[1] G. Crini, P. M. Badot: Prog. Polym. Sci Vol. 33(2008), p.399.

[2] A. Bhatnagar, M Sillanpaa: Adances in Colloid and Interface Science Vol. 152(2009), p.26.

[3] S. Q. Hu, H. P. Wang, Y. H. Chen, et al: Advanced Materials Research Vol. 399-401(2012), p . 1135.

[4] Y. C. Chang, D. H. Chen: Macromolecular Bioscience Vol. 5(2005), p.254.

[5] Y. C. Yuan, B. R. Chen, R. X. Wang, et al: Acta Chimic Sinica Vol. 62(2004), p.842.