MgFe2O4 nanoparticles loaded on activated charcoal for effective removal of Cr (VI) – A novel approach
Source abstract
Abstract
Abstract In this work, we report synthesis of a magnetic nanocomposite (NC) employing a sol–gel method for efficient removal of Cr (VI) from water. Magnetic properties of magnesium ferrite nanoparticles (MFNPs) are combined with the adsorption features of activated charcoal in the NC. It was characterized by Transmission Electron Microscopy (TEM), Scanning Electron Microscopy equipped with Energy dispersive X-ray spectroscopy (SEM–EDX), X-ray diffraction (XRD), Vibrating Sample Magnetometer (VSM) and Fourier Transform Infrared spectroscopy (FT-IR). Presence of amorphous carbon resulted in XRD peak broadening. Particle size from TEM studies was found to be 15 and 25 nm and VSM analysis showed the saturation magnetization of 1.37 and 13.22 emu/g for NC and MFNPs respectively. The Cr (VI) removal capacity of NC and MFNPs was tested using batch mode. Optimum pH was found to be 2. NC displayed better adsorption capacity for Cr (VI) as compared to MFNPs. It could be regenerated by using 0.9 N NaOH. It is a blend of adsorptive and reductive features of activated charcoal along with the magnetic properties of ferrite NPs.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Adsorption and biosorption for pollutant removal · Nanomaterials for catalytic reactions · Environmental remediation with nanomaterials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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