Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/40832
Title: Removal of Cd²⁺ by hydroxyapatite adsorption granule from aqueous solution
Authors: Le, Thi Duyen
Le, Thi Phuong Thao
Do, Thi Hai
Pham, Tien Dung
Pham, Thi Nam
Nguyen, Thi Thom
Cao, Thi Hong
Cao, Thuy Linh
Dinh, Thi Mai Thanh
Keywords: Hydroxyapatite granule
Adsorption
Cd²⁺ion
Issue Date: 2018
Series/Report no.: Vietnam Journal of Chemistry;Vol. 56, No. 05 .- P.542-547
Abstract: Hydroxyapatite (HAp) adsorption granules with average size of 2x10 mm was fabricated from HAp powder and polyvinyl alcohol (PVA) additive by sintering for removing of Cd²⁺ ions from aqueous solution. The effect of some factors on the Cd²⁺ adsorption efficiency and capacity was investigated. The removal efficiency and capacity reached 86.5 % and 4.33 mg/g, respectively, at condition: HAp granule mass of 0.3 g, initial Cd²⁺ concentration of 30 mg/L, contact time of 40 minutes and pH₀ of 5.7 at 30°C. The experimental data was described by Langmuir and Freundlich isotherm models; pseudo-first order and pseudo-second order kinetic equations.
URI: https://dspace.ctu.edu.vn/jspui/handle/123456789/40832
ISSN: 2525-2321
Appears in Collections:Vietnam Journal of Chemistry

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