Structural studies of silica‐supported spinel magnesium ferrite nanorods for photocatalytic degradation of methyl orange. Issue 7 (22nd April 2022)

• Record Type: Journal Article
• Authors: Kazi, Subiya K.; Inamdar, Shaukatali N.; Kamble, Dhanraj P.; Lohar, Kishan S.; Suryawanshi, Appasaheb W.; Tigote, Radhakrishnan M.
• Is Part Of: Journal of the Chinese Chemical Society. Volume 69:Issue 7(2022)
• Page Start: 1032
• Page End: 1041
• Publication Date: 2022-04-22
• Subjects: crystalline size -- degradation of methyl orange dye -- magnetic properties -- mesoporous ferrite nanoparticles -- optical activity -- spinel structure; Chemistry -- Periodicals; Electronic journals; 540.5
• DOI: 10.1002/jccs.202200010
• Languages: English
• ISSNs: 0009-4536

Abstract

Abstract: A novel, well‐designed, silica‐supported magnesium ferrite nanorods were successfully developed at room temperature using the co‐precipitation method. The synthesized nanorods show an optical band gap of 3.1 eV, with the maximum wavelength absorptive at 334 nm. The average particle size is 36 nm with the FCC crystal structure by the X‐ray Diffraction technique (XRD). TGA achieved thermal stability of targeted mesoporous materials at 600°C. Field Emission Scanning Electron Microscopy (FE‐SEM) and High‐Resolution Transmission Electron Microscopy (HR‐TEM) techniques confirm the rod‐like structure. Energy Dispersive Spectroscopy (EDS) and X‐Ray Fluorescence (XRF) studies reveal the presence of all elements in the composition. The synthesized nanorods are highly magnetic by the vibrating sample magnetometer (VSM) technique, which shows a high coercivity value, that is, MgFe2 O4 @SiO2 is photocatalytically active. From BET analysis, the surface area, pore volume, and pore diameter are 19.2 m 2 g −1, 2.46 cm 3 g −1, and 5.10 nm, respectively. The experimental outcomes predict that the degradation efficiency (79%) of methyl orange dye was accomplished using MgFe2 O4 SiO2 nanorods within 270 min. Abstract : The synthesized magnetic MgFe2 O4 @SiO2 nanorods show an optical band gap of 3.1 eV, with λmax at 334 nm and average particle size 36 nm, with FCC crystal structure. SEM & TEM confirm the rod‐like structure. EDS, XRF studies reveal the presence of Si, Mg, Fe and O. The surface area, pore volume, and pore diameter are 19.2 m 2 g −1, 2.46 cm 3 g −1, 5.10 nm respectively.