Removal of Zinc Ions Using Hydroxyapatite and Study of Ultrasound Behavior of Aqueous Media

Simona  Liliana Iconaru; Mikael Motelica-Heino; Régis Guegan; Mihai  Valentin Predoi; Alina  Mihaela Prodan; Daniela Predoi

doi:10.3390/ma11081350

Materials (Aug 2018)

Removal of Zinc Ions Using Hydroxyapatite and Study of Ultrasound Behavior of Aqueous Media

Simona Liliana Iconaru,
Mikael Motelica-Heino,
Régis Guegan,
Mihai Valentin Predoi,
Alina Mihaela Prodan,
Daniela Predoi

Affiliations

Simona Liliana Iconaru: National Institute of Materials Physics, Atomistilor Street, No. 405A, P.O. Box MG 07, Magurele 077125, Romania
Mikael Motelica-Heino: Institut des Sciences de la Terre d’Orléans (ISTO), UMR 7327 CNRS Université d’Orléans, 1A rue de la Férollerie, 45071 Orléans CEDEX 2, France
Régis Guegan: Faculty of Science and Engineering, Global Center for Science and Engineering, Waseda University, 3-4-1, Okubo, Shinjuku-ku, Tokyo 169-8555, Japan
Mihai Valentin Predoi: Department of Mechanics, University Politehnica of Bucharest, BN 002, 313 Splaiul Independentei, Sector 6, Bucharest 060042, Romania
Alina Mihaela Prodan: Emergency Hospital Floreasca Bucharest, 8 Calea Floreasca, Sector 1, Bucharest 014461, Romania
Daniela Predoi: National Institute of Materials Physics, Atomistilor Street, No. 405A, P.O. Box MG 07, Magurele 077125, Romania

DOI: https://doi.org/10.3390/ma11081350
Journal volume & issue: Vol. 11, no. 8
p. 1350

Abstract

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The present study demonstrates the effectiveness of hydroxyapatite nanopowders in the adsorption of zinc in aqueous solutions. The synthesized hydroxyapatites before (HAp) and after the adsorption of zinc (at a concentration of 50 mg/L) in solution (HApD) were characterized using X-ray diffraction (XRD), and scanning and transmission electron microscopy (SEM and TEM, respectively). The effectiveness of hydroxyapatite nanopowders in the adsorption of zinc in aqueous solutions was stressed out through ultrasonic measurements. Both Langmuir and Freundlich models properly fitted on a wide range of concentration the equilibrium adsorption isotherms, allowing us to precisely quantify the affinity of zinc to hydroxyapatite nanopowders and to probe the efficacy of hydroxyapatite in removal of zinc ions from aqueous solutions in ultrasonic conditions.

Published in Materials

ISSN: 1996-1944 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering; Technology: Engineering (General). Civil engineering (General); Science: Natural history (General): Microscopy; Science: Physics: Descriptive and experimental mechanics
Website: http://www.mdpi.com/journal/materials/

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