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https://open.uns.ac.rs/handle/123456789/3874
Title: | Removal of Ni(II) and Cu(II) from aqueous solutions using "green" zero-valent iron nanoparticles produced by oak and mulberry leaf extracts | Authors: | Poguberović S. Krčmar, Dejan Dalmacija, Božo Maletić, Aleksandra Tomašević Pilipović, Dragana Kerkez, Djurdja Rončević, Srđan |
Issue Date: | 1-Nov-2016 | Journal: | Water Science and Technology | Abstract: | © IWA Publishing 2016. The production of zero-valent iron nanoparticles, using extracts from natural products, represents a green and environmentally friendly method. Synthesis of "green" zero-valent nanoparticles (nZVI) using oak and mulberry leaf extracts (OL-nZVI and ML-nZVI) proved to be a promising approach for Ni(II) and Cu(II) removal from aqueous solutions. Characterization of the produced green nZVI materials had been conducted previously and confirmed the formation of nanosize zero-valent iron particles within the size range of 10-30 nm, spherical with minimum agglomeration observed by transmission electron microscopy and scanning electron microscope morphology measurements. Batch experiments revealed that the adsorption kinetics followed a pseudo-second-order rate equation. The obtained adsorption isotherm data could be well described by the Freundlich model and OL-nZVI showed higher adsorption capacity for Ni(II) removal than ML-nZVI, while ML-nZVI adsorption capacity was higher for Cu(II). In addition, investigation of the pH effect showed that varying the initial pH value had a great effect on Ni(II) and Cu(II) removal. Adsorbed amounts of Ni(II) and Cu(II) increased with pH increase to pH 7.0 and 8.0. This study indicated that nZVI produced by a low-cost and non-toxic method with oak and mulberry leaf extracts could be used as a new material for remediation of water matrices contaminated with Ni(II) and Cu(II). | URI: | https://open.uns.ac.rs/handle/123456789/3874 | ISSN: | 02731223 | DOI: | 10.2166/wst.2016.387 |
Appears in Collections: | PMF Publikacije/Publications |
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