Magnetite (Fe3O4) nanoparticles for chromium removal
DOI:
https://doi.org/10.3329/bjsir.v53i3.38269Keywords:
Magnetite, Nanoparticles, Sol-gel, Water treatmentAbstract
Magnetite (Fe3O4) nanoparticles were synthesized by sol-gel method using ferric nitrate and ethylene glycol as precursors at 250ºC and 300ºC. X-ray diffraction (XRD) study was used to determine the particle size and structural properties. The microstructural and particle size analysis were carried out using scanning electron microscope (SEM). Magnetite (Fe3O4) nanoparticles were annealed at 250ºC obtained as smaller crystal size than that of 300ºC. Fourier Transform Infrared (FTIR) spectroscopy was used to identify the functional groups of active compound in synthesized magnetite nanoparticles and their corresponding bands were observed in the region between 500cm-1 and 4000cm-1 of infrared radiation. The observed peaks at wave number 574cm-1 and 424cm-1 due to the vibration of tetrahedral and octahedral sites which is indicative the formation of spinel structure of magnetite (Fe3O4). Removal of Cr was found 80% by the synthesized magnetite (Fe3O4) nanoparticles 25g/L at pH 4.0 and contact time was 250 minutes. The results showed that prepared magnetite (Fe3O4) nanoparticles can be used for the treatment of wastewater containing chromium.
Bangladesh J. Sci. Ind. Res.53(3), 219-224, 2018
Downloads
80
75
Downloads
Published
How to Cite
Issue
Section
License
Bangladesh Council of Scientific and Industrial Research (BCSIR) holds the copyright to all contents published in Bangladesh Journal of Scientific and Industrial Research (BJSIR). A copyright transfer form should be signed by the author(s) and be returned to BJSIR.
The entire contents of the BJSIR are protected under Bangladesh Council of Scientific and Industrial Research (BCSIR) copyrights.
BJSIR is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial License (CC BY-NC) Creative Commons Attribution-NonCommercial 4.0 International License which allows others remix, tweak, and build upon the articles non-commercially, and although their new works must also acknowledge and be non-commercial, they dont have to license their derivative works on the same terms.