Synthesis of a composite sorbent based on hydroxyapatite and zeolite and its sorption properties
S.A. Bibanaeva1, V.M. Skachkov1, N.A. Sabirzyanov1, O.V. Koryakova2
1 Institute of Solid State Chemistry of the Ural Branch of RAS
2 I.Ya. Postovsky Institute of Organic Synthesis of the Ural Branch of RAS
DOI: 10.26456/pcascnn/2025.17.554
Original article
Abstract: The work is devoted to the study of sorption properties of a new composite sorbent based on synthetic zeolite and hydroxyapatite obtained by the sol-gel method as a sorbent for ions of heavy non-ferrous metals (chromium, nickel, iron, copper and zinc) from acidic aqueous solutions. The chemical qualitative and quantitative composition, morphology of the initial reagents, and the obtained solutions were studied. It was found that the composite sorbent has a high specific surface area (1600 m2/g) and exhibits high sorption activity and sorption capacity, higher than monosorbents of synthetic zeolite and hydroxyapatite, and also higher than that of a mechanical mixture of hydroxyapatite and zeolite. The characteristics of the composite sorbent were determined by IR spectroscopy, the presence of uncharacteristic absorption bands of 907 and 873 cm-1 in the spectrum was shown, which indicates the formation of new chemical bonds. The phase composition of the composite sorbent was determined by X-ray phase analysis, and the morphology was studied by scanning electron microscopy. The high sorption activity and capacity of the resulting composite sorbent can be used for additional purification of wastewater from enterprises, which can be implemented in a number of industrial productions. Based on the results of the study, an application for a patent was filed.
Keywords: purification, composite sorbent, hydroxyapatite, sorption, heavy non-ferrous metals
- Svetlana A. Bibanaeva – Researcher, Laboratories of heterogeneous processes chemistry, Institute of Solid State Chemistry of the Ural Branch of RAS
- Vladimir M. Skachkov – Ph.D., Senior Researcher, Laboratories of heterogeneous processes chemistry, Institute of Solid State Chemistry of the Ural Branch of RAS
- Nail A. Sabirzyanov – Dr. Sc., Chief Researcher Laboratories of heterogeneous processes chemistry, Institute of Solid State Chemistry of the Ural Branch of RAS
- Olga V. Koryakova – Researcher, Laboratory of Laboratory Spectral Research Methods, I.Ya. Postovsky Institute of Organic Synthesis of the Ural Branch of RAS
For citation:
Bibanaeva S.A., Skachkov V.M., Sabirzyanov N.A., Koryakova O.V. Sintez kompozitsionnogo sorbenta na osnove gidroksiapatita i tseolita i ego sorbtsionnye svojstva [Synthesis of a composite sorbent based on hydroxyapatite and zeolite and its sorption properties], Fiziko-khimicheskie aspekty izucheniya klasterov, nanostruktur i nanomaterialov [Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials], 2025, issue 17, pp. 554-562. DOI: 10.26456/pcascnn/2025.17.554. ⎘
Full article (in Russian): download PDF file
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