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Title: | Preparation, characterization and application of polystyrene based activated carbons for Ni(II) removal from aqueous solution | Authors: | GONSALVESH, Lenia-Nezaet MARINOV, Stefan Gryglewicz, G. CARLEER, Robert YPERMAN, Jan |
Issue Date: | 2016 | Publisher: | ELSEVIER SCIENCE BV | Source: | FUEL PROCESSING TECHNOLOGY, 149, p. 75-85 | Abstract: | The production of activated carbon from polystyrene waste is tested in order to limit its negative environmental impact through conversion to value added products. For this purpose modification of the precursor, slow pyrolysis and subsequent activations, i.e. high temperature steam activation and low temperature air oxidation, are applied. The physical/chemical properties as well as adsorption capacities of obtained activated carbons (ACs) towards Ni(II) removal in aqueous solutions are explored. Steam activated carbon S-ACMPS performs superior in Ni(II) removal at applied circumstances. Ni(II) adsorption by this AC has been investigated using different process parameters and occult' through cation exchange mechanism optimal at pH range of initial solution of 4-8. Several reaction based kinetic models, i.e. pseudo-first, pseudo-second and Elovich models, and intra-particle diffusion model, are applied on experimental data. The adsorption kinetics of Ni(II) is best approximated by a pseudo second-order model. The equilibrium adsorption data best fits the Langmuir adsorption isotherm. Calculated maximum adsorption capacity for S-ACMPS is 40.8 mg g(-1). | Notes: | [Gonsalvesh, L.; Marinov, S. P.] Bulgarian Acad Sci, Ctr Phytochem, Inst Organ Chem, BU-1113 Sofia, Bulgaria. [Gryglewicz, G.] Wroclaw Univ Technol, Fac Chem, Dept Polymer & Carbonaceous Mat, Gdanska 7-9, PL-50344 Wroclaw, Poland. [Carleer, R.; Yperman, J.] Hasselt Univ, CMK, Res Grp Appl & Analyt Chem, B-3590 Diepenbeek, Belgium. | Keywords: | Polystyrene waste; Activated carbon; Nickel; Adsorption; Kinetics;polystyrene waste; activated carbon; nickel; adsorption; kinetics | Document URI: | http://hdl.handle.net/1942/22073 | ISSN: | 0378-3820 | e-ISSN: | 1873-7188 | DOI: | 10.1016/j.fuproc.2016.03.024 | ISI #: | 000378183100009 | Rights: | © 2016 Elsevier B.V. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2017 |
Appears in Collections: | Research publications |
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