Article info.

ABSTRACT

Received date: 14/09/2015

Accepted date: 30/03/2017

γ-FeOOH nanorods adsorbent for As⁵⁺ removal was prepared by a chemical co-precipitation method. The maximum adsorption capacities for As⁵⁺was 63.75 mg/g at pH= 6.0, higher than those of Fe₂O₃, Fe₃O₄... The adsorption data accorded with Freundlich isotherms. At study pH, for arsenic, the adsorption equilibrium was gained after 90 min. Kinetic data fitted well to the pseudo-second-order reaction model. Competitive ions hindered the adsorption according to the decreasing sequence sulfate, ammonium and chloride. The high adsorption capability and good performance on other aspects make the γ-FeOOH nanorods becomes a promising adsorbent for the removal of As (V) from groundwater.

Keywords

As, kinetic, sorption, γ-FeOOH nano

Cited as: Trung, N. D., Phuong, T. D., 2017. Sorption of As⁵⁺ from aqueous solution by lepidocrocit (γ-feooh) nanoparticle. Can Tho University Journal of Science. Vol 5: 87-94.