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Markovski JS, Đokić V, Milosavljević M, et al. Ultrasonic assisted arsenate adsorption on solvothermally synthesized calcite modified by goethite, α-MnO2 and goethite/α-MnO2. Ultrason Sonochem. 2013;21(2):790-801doi: 10.1016/j.ultsonch.2013.10.006.
Markovski, J. S., Đokić, V., Milosavljević, M., Mitrić, M., Perić-Grujić, A. A., Onjia, A. E., & Marinković, A. D. (2014). Ultrasonic assisted arsenate adsorption on solvothermally synthesized calcite modified by goethite, α-MnO2 and goethite/α-MnO2. Ultrasonics sonochemistry, 21(2), 790-801. https://doi.org/10.1016/j.ultsonch.2013.10.006
Markovski, Jasmina S, et al. "Ultrasonic assisted arsenate adsorption on solvothermally synthesized calcite modified by goethite, α-MnO2 and goethite/α-MnO2." Ultrasonics sonochemistry vol. 21,2 (2014): 790-801. doi: https://doi.org/10.1016/j.ultsonch.2013.10.006
Markovski JS, Đokić V, Milosavljević M, Mitrić M, Perić-Grujić AA, Onjia AE, Marinković AD. Ultrasonic assisted arsenate adsorption on solvothermally synthesized calcite modified by goethite, α-MnO2 and goethite/α-MnO2. Ultrason Sonochem. 2014 Mar;21(2):790-801. doi: 10.1016/j.ultsonch.2013.10.006. Epub 2013 Oct 26. PMID: 24210695.
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Ultrason Sonochem. 2014 Mar;21(2):790-801. doi: 10.1016/j.ultsonch.2013.10.006. Epub 2013 Oct 26.

Ultrasonic assisted arsenate adsorption on solvothermally synthesized calcite modified by goethite, α-MnO2 and goethite/α-MnO2.

Ultrasonics sonochemistry

Jasmina S Markovski, Veljko Đokić, Milutin Milosavljević, Miodrag Mitrić, Aleksandra A Perić-Grujić, Antonije E Onjia, Aleksandar D Marinković

Affiliations

  1. Vin?a Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001 Belgrade, Serbia. Electronic address: [email protected].

PMID: 24210695 DOI: 10.1016/j.ultsonch.2013.10.006

Abstract

A highly porous calcium carbonate (calcite; sorbent 1) was used as a support for modification with α-FeOOH (calcite/goethite; sorbent 2), α-MnO2 (calcite/α-MnO2; sorbent 3) and α-FeOOH/α-MnO2 (calcite/goethite/α-MnO2; sorbent 4) in order to obtain a cheap hybrid materials for simple and effective arsenate removal from aqueous solutions. The adsorption ability of synthesized adsorbents was studied as a function of functionalization methods, pH, contact time, temperature and ultrasonic treatment. Comparison of the adsorptive effectiveness of synthesized adsorbents for arsenate removal, under ultrasound treatment and classical stirring method, has shown better performance of the former one reaching maximum adsorption capacities of 1.73, 21.00, 10.36 and 41.94 mg g(-1), for sorbents 1-4, respectively. Visual MINTEQ equilibrium speciation modeling was used for prediction of pH and interfering ion influences on arsenate adsorption.

Copyright © 2013 Elsevier B.V. All rights reserved.

Keywords: Adsorption; Arsenate; Calcite; Goethite; Ultrasound; α-MnO(2)

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