Magnesium oxide nanoparticles decorated iron oxide nanorods: Synthesis, characterization and remediation of Congo red dye from aqueous media

In this work, nanosized magnesium oxide decorated iron oxide nanorods (Fe2O3–MgO) were synthesized by simple one step hydrothermal method using magnesium nitrate, ferric nitrate and polyethylene glycol as starting materials. Here polyethylene glycol acts as a stabling agent. The obtained products we...

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Bibliographic Details
Published in:Composites communications 2020-12, Vol.22, p.100496, Article 100496
Main Authors: Sahoo, Shraban Kumar, Dhal, Jyoti Prakash, Panigrahi, Gagan Kumar
Format: Article
Language:English
Subjects:
Adsorption
Congo red
Metal oxide
Nanocomposites
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Summary:In this work, nanosized magnesium oxide decorated iron oxide nanorods (Fe2O3–MgO) were synthesized by simple one step hydrothermal method using magnesium nitrate, ferric nitrate and polyethylene glycol as starting materials. Here polyethylene glycol acts as a stabling agent. The obtained products were used as adsorbents for the elimination of toxic Congo red (CR) dye from water. TEM images showed the formation of spherical MgO nanoparticles on Fe2O3 nanorods surface. The crystal structure and surface area was described by XRD and BET analytical methods. CR adsorption mainly pH depended and maximum adsorption capacity occurred at pH 4 with adsorption capacity value 200 mg/g. •Fe2O3–MgO nanocomposite was prepared by hydrothermal method.•Nanocomposite was used as adsorbent for toxic Congo red dye adsorption.•Adsorption of CR on adsorbent surface mainly pH depended.•Adsorption process follows pseudo first order kinetic and Langmuir isotherm models.
ISSN:2452-2139
2452-2139
DOI:10.1016/j.coco.2020.100496