Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/103092
Title: Kinetic and isotherm study of as(Iii) removal from aqueous solution by pet track-etched membranes loaded with copper microtubes
Authors: Russakova, A. V.
Altynbaeva, L. Sh.
Barsbay, M.
Zheltov, D. A.
Zdorovets, M. V.
Mashentseva, A. A.
Issue Date: 2021
Publisher: MDPI AG
Citation: Kinetic and isotherm study of as(Iii) removal from aqueous solution by pet track-etched membranes loaded with copper microtubes / A. V. Russakova, L. Sh. Altynbaeva, M. Barsbay, et al. — DOI 10.3390/membranes11020116 // Membranes. — 2021. — Vol. 11. — Iss. 2. — P. 1-19. — 116.
Abstract: This paper reports on the synthesis and structure elucidation of track-etched membranes (TeMs) with electrolessly deposited copper microtubes (prepared in etched-only and oxidized polyethylene terephthalate (PET) TeMs), as well as on the comparative testing of arsenic (III) ion removal capacities through bath adsorption experiments. The structure and composition of composites were investigated by X-ray diffraction technique and scanning electron and atomic force microscopies. It was determined that adsorption followed pseudo-second-order kinetics, and the adsorption rate constants were calculated. A comparative study of the applicability of the adsorption models of Langmuir, Freundlich, and Dubinin–Radushkevich was carried out in order to describe the experimental isotherms of the prepared composite TeMs. The constants and parameters of all of the above equations were determined. By comparing the regression coefficients R2, it was shown that the Freundlich model describes the experimental data on the adsorption of arsenic through the studied samples better than others. Free energy of As(III) adsorption on the samples was determined using the Dubinin–Radushkevich isotherm model and was found to be 17.2 and 31.6 kJ/mol for Cu/PET and Cu/Ox_PET samples, respectively. The high EDr value observed for the Cu/Ox_PET composite indicates that the interaction between the adsorbate and the composite is based on chemisorption. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords: ADSORPTION KINETICS
ARSENIC (III) IONS
COMPOSITE TRACK-ETCHED MEMBRANES
COPPER MICROTUBES
ELECTROLESS PLATING
TEMPLATE SYNTHESIS
ATOMIC FORCE MICROSCOPY
COMPOSITE STRUCTURES
COPPER
FREE ENERGY
ISOTHERMS
PLASTIC BOTTLES
POLYETHYLENES
RATE CONSTANTS
WELL TESTING
ADSORPTION EXPERIMENT
ADSORPTION OF ARSENICS
POLYETHYLENE TEREPHTHALATES (PET)
PSEUDO SECOND ORDER KINETICS
REGRESSION COEFFICIENT
STRUCTURE ELUCIDATION
TRACK-ETCHED MEMBRANE
X-RAY DIFFRACTION TECHNIQUES
ADSORPTION
URI: http://hdl.handle.net/10995/103092
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85100743433
PURE ID: 20890813
4a417cde-fed3-4f7b-8e2f-53f1a0c5f0ec
ISSN: 20770375
DOI: 10.3390/membranes11020116
metadata.dc.description.sponsorship: The research project titled “Development of functionalized composite track-etched membranes for environmental applications” (grant No. AP08855527) was funded by the Ministry of Education and Science of the Republic of Kazakhstan.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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