• International Journal of Technology (IJTech)
  • Vol 16, No 5 (2025)

Magnetic Nanocomposite of Hydroxyapatite/Co-doped ZnFe2O4 Synthesized by Green Technology: Structure, Character, and Application

Magnetic Nanocomposite of Hydroxyapatite/Co-doped ZnFe2O4 Synthesized by Green Technology: Structure, Character, and Application

Title: Magnetic Nanocomposite of Hydroxyapatite/Co-doped ZnFe2O4 Synthesized by Green Technology: Structure, Character, and Application
Rahmayeni, Rifky Farhan, Zilfa, Tio Putra Wendari, Yeni Stiadi, Zulhadjri

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Rahmayeni, Farhan, R, Zilfa, Wendari, TP, Stiadi, Y & Zulhadjri 2025, ‘Magnetic nanocomposite of hydroxyapatite/co-doped ZnFe2O4 synthesized by green technology: structure, character, and application, International Journal of Technology, vol. 16, no. 5, pp. 1682-1699

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Rahmayeni Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Limau Manis, Padang 25163, Indonesia
Rifky Farhan Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Limau Manis, Padang 25163, Indonesia
Zilfa Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Limau Manis, Padang 25163, Indonesia
Tio Putra Wendari Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Limau Manis, Padang 25163, Indonesia
Yeni Stiadi Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Limau Manis, Padang 25163, Indonesia
Zulhadjri Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Andalas, Kampus Limau Manis, Padang 25163, Indonesia
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Abstract
Magnetic Nanocomposite of Hydroxyapatite/Co-doped ZnFe2O4 Synthesized by Green Technology: Structure, Character, and Application

This research aimed to develop hydroxyapatite/Co-doped-ZnFe2O4 with a mole ratio of Co:Zn of 0.1:0.9 (HA/Co0.1Zn0.9Fe2O4) nanocomposites by hydrothermal method using waste from Pensi clam shells as a calcium source for the synthesis of hydroxyapatite. Nanocomposites were applied to remediate organic contaminants and metal ions in water. Various characterization methods confirmed the successful fabrication of HA/Co0.1Zn0.9Fe2O4 magnetic nanocomposite. X-ray diffraction (XRD) pattern showed distinct peaks indicating the formation of nanocomposite, and no impurities were observed. Fourier Transform Infrared (FTIR) analysis shows the absorption bands at wave numbers 482 cm-1 and 534 cm-1, signifying the existence of M-O vibrations for the octahedral and tetrahedral sides of the ferrite contained in the nanocomposite. Nanocomposites exhibit superparamagnetic behavior, with a saturation magnetization ranging from 0.64 to 2.047 emu/g. The energy gap values in the visible light spectrum are between 2.25 and 2.4 eV. Brunauer-Emmett-Teller (BET) method was used to determine the specific surface area of nanocomposites, producing 32.01 m²/g for those with a HA: Co0.1Zn0.9Fe2O4 ratio of 16:4. The composite exhibited 92.51% Cd(II) metal ions adsorption and 98.65% dye degradation. These magnetic nanocomposites have the potential to serve as an efficient and environmentally friendly sorbent for Cd(II) ions and as a catalyst for wastewater dye degradation.

Green Technology, HA/Co0.1Zn0.9Fe2O4, Pensi calm shells, Photocatalyst, Superparamagnetic

Supplementary Material
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