Volume 7, Number 4 (1-2015)                   ijhe 2015, 7(4): 499-510 | Back to browse issues page


XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Akbari Jonoush Z, Farzadkia M, Naseri S, Mohajerani H, Esrafili dizaji A, Dadban Shahamat Y. Removal of Uranium (VI) from aqueous solution by Uranium Benzamide Complex using AC_Fe3O4 Nanocomposite. ijhe. 2015; 7 (4) :499-510
URL: http://ijhe.tums.ac.ir/article-1-5263-en.html

1- MSc of Environmental Health Engineering, Tehran University of Medical Sciences, Tehran, Iran
2- Professor of Environmental Health Engineering Department, Iran University of Medical, Tehran, Iran , mahdifarzadkia@gmail.com
3- Professor of Environmental Health Engineering Department, Center for Water Quality Research (CWOR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
4- C.E.O of Iran Nuclear Waste Management Company, Atomic Energy Organization of Iran, Tehran, Iran
5- Assistant Professor of Environmental Health Engineering Department, Iran University of Medical, Tehran, Iran
6- Assistant Professor of Environmental Health Engineering Department, Golestan University of Medical Sciences, Gorgan, Iran
Abstract:   (2384 Views)

Background and Objectives: Increased growing nuclear industry has increased the researchers concerns on uranium presence in the environment and its effects on human health. Uranium is a dangerous radioactive heavy metal with high half-life and chemical toxicity. Therefore, the main objective of this study was to removal uranium (VI) from aqueous solution by uranium benzamide complex using AC_Fe3O4 nanocomposite. Materials and Methods: AC_Fe3O4 nanocomposite was synthesized using co-precipitation method. The experiments were designed as one factor at the time method. The optimum range of pH, contact time, amounts of adsorbent, and concentration of benzamide were determined. Then, kinetic and isotherm of uranium adsorption were studied. In addition, the properties of this adsorbent were characterized using scanning electron microscopy (SEM) and Fourier transform infrared (FTIR). Results: The SEM and FTIR analysis confirmed that activated carbon is coated with Fe3O4 nanoparticles and the magnetic property of AC-Fe2O3 was approved. According to the results, the optimum conditions were pH =6, contact time =30 min, and 0.06 g of adsorbent dose. The adsorption of uranium on the AC_Fe3O4 nanocomposite fitted to Langmuir isotherm and pseudo-second order kinetic model. The removal of U(VI) was increased about 6% with increasing in benzamide concentration to 50 mg/L. The best percentage removal of uranium in aqueous solution was 95%. Conclusion: The removal of U(VI) on AC_Fe3O4 nanocomposite with the aid of benzamide is a rapid and highly pH depended process. The maximum sorption capacity (15/87 mg/g) of AC_Fe3O4 nanocomposite shows that this method is a suitable method for Uranium removal.

Full-Text [PDF 771 kb]   (916 Downloads)    
Type of Study: Applicable | Subject: WATER
Received: 2014/06/11 | Accepted: 2015/07/25 | Published: 2015/07/25

Add your comments about this article : Your username or email:
Write the security code in the box

Send email to the article author


© 2017 All Rights Reserved | Iranian Journal of Health and Environment

Designed & Developed by : Yektaweb