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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3001
Title: Recovery of pure ZnO nanoparticles from spent Zn-MnO2 alkaline batteries
Authors: Deep A.
Kumar K.
Kumar P.
Kumar P.
Sharma A.L.
Gupta B.
Bharadwaj L.M.
Published in: Environmental Science and Technology
Abstract: The recovery of pure ZnO (zinc oxide) nanoparticles from spent Zn-Mn dry alkaline batteries is reported. Spent batteries were dismantled to separate the contained valuable metals of the cell electrodes in the form of black powder. Treatment of this black powder with 5 mol L-1 HCl produced leach liquor, primarily containing 2.90 g L-1 Zn and 2.02 g L-1 Mn. Selective and quantitative liquid-liquid extraction of Zn(II) was then carried out in three counter current steps by using Cyanex 923 (0.10 mol L -1 in n-hexane). Zn(II) distributed in the organic phase as complex ZnCl2.2R (R = Cyanex 923 molecule). The metal loaded organic phase was subjected to combust at 600 °C to yield pure ZnO nanoparticles (40-50 nm). Important characteristics of the synthesized nanoparticles were investigated by field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction spectroscopy (XRD), and atomic force microscopy (AFM). © 2011 American Chemical Society.
Citation: Environmental Science and Technology (2011), 45(24): 10551-10556
URI: https://doi.org/10.1021/es201744t
http://repository.iitr.ac.in/handle/123456789/3001
Issue Date: 2011
ISSN: 0013936X
Author Scopus IDs: 6602909701
55451467400
57203375078
56122139800
57203977332
7402195167
8055685400
Author Affiliations: Deep, A., Biomolecular Electronics and Nanotechnology Division, Central Scientific Instruments Organization (CSIR-CSIO), Sector 30C, Chandigarh 160030, India
Kumar, K., Department of Physics, Gurukula Kangri University, Haridwar 249404, India
Kumar, P., Biomolecular Electronics and Nanotechnology Division, Central Scientific Instruments Organization (CSIR-CSIO), Sector 30C, Chandigarh 160030, India
Kumar, P., Biomolecular Electronics and Nanotechnology Division, Central Scientific Instruments Organization (CSIR-CSIO), Sector 30C, Chandigarh 160030, India
Sharma, A.L., Biomolecular Electronics and Nanotechnology Division, Central Scientific Instruments Organization (CSIR-CSIO), Sector 30C, Chandigarh 160030, India
Gupta, B., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
Bharadwaj, L.M., Biomolecular Electronics and Nanotechnology Division, Central Scientific Instruments Organization (CSIR-CSIO), Sector 30C, Chandigarh 160030, India
Corresponding Author: Deep, A.; Biomolecular Electronics and Nanotechnology Division, Central Scientific Instruments Organization (CSIR-CSIO), Sector 30C, Chandigarh 160030, India; email: dr.akashdeep@gmail.com
Appears in Collections:Journal Publications [CY]

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