Synthesis of CaO/Fe2O3 nanocomposite as an efficient nanoadsorbent for the treatment of wastewater containing Cr (III)

In this study, CaO/Fe 2 O 3 nanocomposite was studied as an efficient and novel adsorbent for the sorption of chromium (III) from aqueous media. Different analyses including FTIR, XRD, TGA-DTG, SEM/EDAX, and TEM were used to study the characteristics of CaO/Fe 2 O 3 nanocomposite. The highest sorpti...

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Published inSeparation science and technology Vol. 56; no. 8; pp. 1328 - 1341
Main Authors Keshavarz, Maryam, Foroutan, Rauf, Papari, Fatemeh, Bulgariu, Laura, Esmaeili, Hossein
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 24.05.2021
Taylor & Francis Ltd
Subjects
Adsorption
aqueous solution
Aqueous solutions
CaO/Fe
Chrome (III) ion
Chromium
Ferric oxide
Isotherms
nanocomposite
Nanocomposites
Sorption
Trivalent chromium
Wastewater
Wastewater treatment
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ISSN0149-6395
1520-5754
DOI10.1080/01496395.2020.1778727

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Summary:In this study, CaO/Fe 2 O 3 nanocomposite was studied as an efficient and novel adsorbent for the sorption of chromium (III) from aqueous media. Different analyses including FTIR, XRD, TGA-DTG, SEM/EDAX, and TEM were used to study the characteristics of CaO/Fe 2 O 3 nanocomposite. The highest sorption efficiency using CaO/Fe 2 O 3 nanocomposite was achieved 97.53%, which showed a high removal efficiency of Cr (III). The maximum adsorption capacity of CaO/Fe 2 O 3 nanocomposite using Langmuir isotherm model was obtained 60.60 mg/g. Also, the adsorption data were best fitted to the pseudo-second-order kinetic model and Langmuir isotherm model. Moreover, the adsorption process was spontaneous and exothermic nature.
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ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2020.1778727