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2013•Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and AtomsRequires access

Sorption of Eu(III) on Goethite and P-Goethite

Wu Wangsuo

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Abstract

Sorption of Eu(Ⅲ) on goethite and P-goethite was studied using a batch experiment method.The results show that the sorption of Eu(Ⅲ) on goethite is strong pH-dependence, increases from about 10%to nearly 100% over the pH range of 4-6, and then keeps a constant level in higher pH range.The sorption edge of Eu(Ⅲ)o nto P-goethite is much closer to a lower pH.The sorption isotherms were analyzed with Langmuir, Frenudlich and F-L models, and the Freundlich model can fit the data better.The presence of 20mg / L FA has prominent effect on the sorption of Eu(Ⅲ)o n goethite but little effect on P-goethite.

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Sorption of Eu(Ⅲ) on goethite and P-goethite was studied using a batch experiment method.The results show that the sorption of Eu(Ⅲ) on goethite is strong pH-dependence, increases from about 10%to nearly 100% over the pH range of 4-6, and then keeps a constant level in higher pH range.The sorption edge of Eu(Ⅲ)o nto P-goethite is much closer to a lower pH.The sorption isotherms were analyzed with Langmuir, Frenudlich and F-L models, and the Freundlich model can fit the data better.The presence of 20mg / L FA has prominent effect on the sorption of Eu(Ⅲ)o n goethite but little effect on P-goethite.

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Available abstract

Sorption of Eu(Ⅲ) on goethite and P-goethite was studied using a batch experiment method.The results show that the sorption of Eu(Ⅲ) on goethite is strong pH-dependence, increases from about 10%to nearly 100% over the pH range of 4-6, and then keeps a constant level in higher pH range.The sorption edge of Eu(Ⅲ)o nto P-goethite is much closer to a lower pH.The sorption isotherms were analyzed with Langmuir, Frenudlich and F-L models, and the Freundlich model can fit the data better.The presence of 20mg / L FA has prominent effect on the sorption of Eu(Ⅲ)o n goethite but little effect on P-goethite.

Key concepts: Goethite, Sorption, Chemistry, Langmuir, Inorganic chemistry, Freundlich equation, Physical chemistry, Adsorption

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