Fabrication and characterization of the Fe3O4@SiO2-rGO nanocomposite: a catalyst for multi-component reactions
 
Yazarlar (4)
Fatemeh Sheikholia Lavasani Islamic Azad University, North Tehran Branch, İran
Zahra Khalaj
Islamic Azad University, Shahr-E Qods Branch, İran
Hassan Kabirifard Islamic Azad University, North Tehran Branch, İran
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, Central Tehran Branch, İran
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Physical Chemistry Chemical Physics (Q1)
Dergi ISSN 1463-9076 Dergi Bilgileri (2023)
Makale Dili İngilizce Basım Tarihi 01-2023
Cilt / Sayı / Sayfa 25 / 4 / 2821–2829 DOI 10.1039/d2cp05354c
UAK Araştırma Alanları
Özet
A novel nanocomposite is synthesized by covalently modifying reduced graphene oxide (rGO) with Fe3O4@SiO2 nanoparticles. Fe3O4 was synthesized using a co-precipitation method, and SiO2 was then coated onto the Fe3O4via a sol-gel method. Graphene oxide was synthesized using the Hummers' method. Furthermore, a hydrothermal method was applied to create the Fe3O4@SiO2-GO composite, and a simple reduction was used to obtain three-dimensional (3D) Fe3O4@SiO2-rGO core-shell spheres. XRD, FTIR, FE-SEM, VSM, BET, TGA, and Raman analyses were used to characterize the prepared nanocomposites. X-Ray diffraction (XRD) and Raman spectra reveal that the nanostructures consist of highly crystallized cubic Fe3O4, amorphous SiO2, and rGO sheets stacked in a disordered fashion. Field emission scanning electron microscopy (FE-SEM) characterization indicates that the form of the Fe3O4@SiO2 core-shell structures is spherical, with an average size of about 25 nm. Magnetic hysteresis loops reveal the super-paramagnetic behavior of the samples at room temperature. All of the results obtained confirm the synthesis of high-quality nanocomposites, which can be a good candidate for use as a catalyst in multi-component reactions.
Anahtar Kelimeler
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 8
Scopus 8
Fabrication and characterization of the Fe3O4@SiO2-rGO nanocomposite: a catalyst for multi-component reactions

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  • Kastamonu Üniversitesi Rektörlüğü, Kuzeykent Kampüsü, Merkez/Kastamonu
  • unis@kastamonu.edu.tr 03662801000
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