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Published: 2012-06-30
Abstract Views: 59
DOI: https://doi.org/10.53747/nst.v2i2.280
Issue
Vol. 2 No. 2 (2012)
Section
Articles
How to Cite
HO , T. Y. L., NGUYEN , V. S., VO , Q. M., & NGUYEN , M. S. (2012). ADSORPTION EQUILIBRIUM STUDIES OF URANIUM (VI) ONTO CROSS-LINKED CHITOSAN-CITRIC ACID. Nuclear Science and Technology, 2(2), 14-21. https://doi.org/10.53747/nst.v2i2.280

ADSORPTION EQUILIBRIUM STUDIES OF URANIUM (VI) ONTO CROSS-LINKED CHITOSAN-CITRIC ACID

HO THI YEU LY1, NGUYEN VAN SUC1, VO QUANG MAI2, NGUYEN MONG SINH3
1 HCM City University of Technical Education
2 Saigon University
3 Lam Dong Union of Science and Technology Associations

Main Article Content

Abstract

Investigation of U(VI) adsorption by the cross- linked chitosan with citric acid was conduced by bath method. Effect of parameters such as pH, contact time, adsorbent dosage and other metal cations was determined. The maximum adsorption capacity of U(VI) at pH 4 was found to be 243.90 mg U(VI)/g cross-linked chitosan - citric acid after 300 min of contact time. The Langmuir and Freundlich isotherm models were used to describe adsorption equilibrium. The correction values, R2 of two models were found to be 0.993 and 0.989, respectively. Therefore, it could be concluded that the adsorption equilibrium for U(VI) was followed the Langmuir and the Freundlich isotherm models.

Article Details

Keywords

Uranium (VI), Cross-linked chitosan- citric acid, adsorption isotherm

References

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