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Capturing Cd2+ ions from wastewater using PVA/α-MnO2-Oleic acid nanocomposites

Abstract

In the present study, filled poly(vinyl alcohol) nanocomposites (PVA NC)s with modified α-MnO2 nanorods (NR)s were fabricated through the sonochemical method as a fast, economical, and eco-friendly method. In order to uniformly disperse α-MnO2 NRs in the PVA matrix, α-MnO2 NRs were modified with oleic acid (OA). The amount of OA grafted onto α-MnO2 surface was found to be about 13 wt% by thermogravimetric analysis. The PVA/α-MnO2-OA NCs were characterized and morphology, thermal, mechanical, and water treatment behaviors were studied. The results showed the positive influence of α-MnO2-OA on thermal stability and mechanical resistance of NCs. Also, the outcomes demonstrated which PVA/α-MnO2-OA NCs can be promising adsorbents for efficient uptake of Cd2+ ions from aqueous solution. The adsorption isotherms were studied applying Langmuir and Freundlich models, and Freundlich model showed more agreement with the experimental data. The adsorption kinetics investigation demonstrated that pseudo-second-order model was more suitable for the adsorption process.

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Publication details

The article was received on 18 Jan 2018, accepted on 25 Jan 2018 and first published on 26 Jan 2018


Article type: Paper
DOI: 10.1039/C8NJ00304A
Citation: New J. Chem., 2018, Accepted Manuscript
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    Capturing Cd2+ ions from wastewater using PVA/α-MnO2-Oleic acid nanocomposites

    S. Mallakpour and F. Motirasoul, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C8NJ00304A

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