عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In this research, MCM-41 molecular sieve was synthesized, and was characterized by XRD, FT-IR, TG and BET techniques. The ability of the adsorbent towards Sr2+ was then investigated. In order to increase the adsorption capacity of the molecular sieve, the sample was modified by 3-amino propyltrimethoxysilane. The modified MCM-41 was used for the Sr2+ removal at different experimental conditions. The effect of different parameters including pH of the solution, contact time, initial concentration of Sr2+ and temperature were also studied. We concluded that the adsorption of Sr2+ increases as the initial pH of the solution increases. The maximum adsorption capacity of 6.0 mg/g obtained.
10. L. Bois, A. Bonhommé, A. Ribes, B. Pais, G. Raffin, F. Tessier, “Functionalized silica for heavy metal ions adsorption,” Coll. Surf. A: Physicochem. Eng. Aspects. 221, 221-230 (2003).
11. S. Gueu, B. Yao, K. Adouby, G. Ado, “Kinetics and thermodynamics study of lead adsorption on to activated carbons from coconut and seed hull of the plam tree,” Int. J. Environ. Sci. Tech. 4, 11-17 (2007).