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Waste chicken eggshell as a natural valuable resource and environmentally benign support for biosynthesis of catalytically active Cu/eggshell, Fe3O4/eggshell and Cu/Fe3O4/eggshell nanocomposites

Paper ID Volume ID Publish Year Pages File Format Full-Text
44821 46360 2016 19 PDF Available
Title
Waste chicken eggshell as a natural valuable resource and environmentally benign support for biosynthesis of catalytically active Cu/eggshell, Fe3O4/eggshell and Cu/Fe3O4/eggshell nanocomposites
Abstract

•Green synthesis of Cu/eggshell, Fe3O4/eggshell and Cu/Fe3O4/eggshell nanocomposites.•Orchis mascula L. leaf extract act as a stabilizing and reducing agent.•Catalytic reduction of 4-nitrophenol, Methyl orange, Congo red, Methylene blue and Rhodamine B.•Catalytic activity of Cu/eggshell is significantly higher than Fe3O4/eggshell and Cu/Fe3O4/eggshell.•The catalysts could be easily recovered and reused several times.

This paper is reported on the green synthesis of Cu/eggshell, Fe3O4/eggshell and Cu/Fe3O4/eggshell nanocomposites through an environmental and economical method using aqueous extract of the leaves of Orchis mascula L. without any stabilizer or surfactant. The nanocomposites showed high catalytic activity in the reduction of a variety of dyes and characterized by Fourier transform infrared spectroscopy (FT-IR), differential thermal and thermogravimetric (DTA-TGA) analysis, field emission scanning electron microscopy (FESEM) equipped with an energy dispersive spectroscopy (EDS), elemental mapping, X-ray diffraction analysis (XRD), Brunauer–Emmett–Teller (BET), vibrating sample magnetometer (VSM) and UV–vis spectroscopy. The possible mechanism leading to the formation of copper nanoparticles (NPs) is also suggested. The facile and clean synthesis, simple preparation procedure, excellent properties, alterable supports and low cost allow these catalysts to be used in reduction of 4-nitrophenol (4-NP), Methyl orange (MO), Congo red (CR), Methylene blue (MB) and Rhodamine B (RhB) in water at room temperature. The progress of the reaction was monitored using UV–vis spectroscopy. The catalysts could be easily removed from the reaction media by mild centrifugation or an external magnet and reused several times without any negative effect on the initial results.

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Keywords
Eggshell; Orchis mascula L.; NaBH4; Organic dyes; Water
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Waste chicken eggshell as a natural valuable resource and environmentally benign support for biosynthesis of catalytically active Cu/eggshell, Fe3O4/eggshell and Cu/Fe3O4/eggshell nanocomposites
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 191, 15 August 2016, Pages 209–227
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us