Синтез и исследование магнитных композитных наносорбентов для удаления ионов тяжелых металлов из водных растворов

Т.В. Шакиева; У.Н. Джаткамбаева; Б.Т. Досумова; Л.Р. Сасыкова; А.Т. Конысбаев

doi:10.15328/cb2026_161

Authors

T.V. Shakiyeva Al-Farabi Kazakh National University, Almaty, Kazakhstan https://orcid.org/0000-0002-9664-442X (unauthenticated)
U.N. Dzhatkambaeva Al-Farabi Kazakh National University, Almaty, Kazakhstan https://orcid.org/0000-0001-8216-3206 (unauthenticated)
B.T. Dossumova Al-Farabi Kazakh National University, Almaty, Kazakhstan https://orcid.org/0000-0003-4126-2907 (unauthenticated)
L.R. Sassykova Al-Farabi Kazakh National University, Almaty, Kazakhstan https://orcid.org/0000-0003-4721-9758 (unauthenticated)
A.T. Konysbayev Al-Farabi Kazakh National University, Almaty, Kazakhstan https://orcid.org/0009-0004-9790-1004 (unauthenticated)

DOI:

https://doi.org/10.15328/cb2026_161

Keywords:

magnetic nanosorbents, iron oxide, humic acids, composite materials, vortex electromagnetic field, sorption, heavy metals, water treatment

Abstract

This study presents the development of magnetic composite nanosorbents based on iron oxide and humic acids (HA) for the removal of heavy metal ions from aqueous media. The nanocomposites were synthesized by chemical co-precipitation followed by surface modification with humic acids in a vortex electromagnetic field. The phase composition, structure, morphology, and physicochemical properties of the synthesized materials were investigated using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and magnetometry. The sorption properties of the obtained materials were assessed using atomic absorption spectrometry based on the degree of extraction of heavy metal ions from model aqueous solutions. It was established that modification of the iron oxide surface with humic acids promotes the formation of a functionalized surface capable of interacting with metal ions. The combination of sorption sites provided by the humic matrix with the magnetic properties of iron oxide enables efficient separation of the sorbent from the treated medium using an external magnetic field. The scientific significance of the study lies in establishing the relationship between the composition and surface characteristics of the magnetic composites and their sorption efficiency. The developed materials can be considered promising sorbents for the treatment of natural and wastewater contaminated with heavy metal ions.

Author Biographies

T.V. Shakiyeva, Al-Farabi Kazakh National University, Almaty, Kazakhstan

Acting Director of the Institute of New Chemical Technologies and Materials, Candidate of Chemical Sciences, Associate Professor, Al-Farabi Kazakh National University (Almaty, Kazakhstan; e-mail: shakievatatyana@mail.ru)
U.N. Dzhatkambaeva, Al-Farabi Kazakh National University, Almaty, Kazakhstan

PhD Student, Laboratory of Catalysis and Electromagnetic Technologies, Institute of New Chemical Technologies and Materials, Al-Farabi Kazakh National University (Almaty, Kazakhstan; e-mail: ulzhan.dzhatkambaeva@mail.ru)
B.T. Dossumova, Al-Farabi Kazakh National University, Almaty, Kazakhstan

Leading Researcher, Candidate of Chemical Sciences, Associate Professor, Institute of New Chemical Technologies and Materials, Al-Farabi Kazakh National University (Almaty, Kazakhstan; e-mail: dossumova63@mail.ru)
L.R. Sassykova, Al-Farabi Kazakh National University, Almaty, Kazakhstan

Professor of the Department of Physical Chemistry, Catalysis and Petrochemistry, Faculty of Chemistry, Al-Farabi Kazakh National University (Almaty, Kazakhstan; e-mail: larissa.rav@mail.ru)
A.T. Konysbayev, Al-Farabi Kazakh National University, Almaty, Kazakhstan

Master, Laboratory of Catalysis and Electromagnetic Technologies, Institute of New Chemical Technologies and Materials, Al-Farabi Kazakh National University (Almaty, Kazakhstan; e-mail: aza.konysbaev@gmail.com)

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