Book ChapterDOI
Development of Copper Nanoparticles from E-waste for Biomedical Applications
Ammu Anna Mathew,P. Parthasarathy,S. Vivekanandan +2 more
- pp 703-715
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TLDR
In this article, the synthesis of copper nanoparticles from E-waste which is having copper metal content present in it is described and the XRD result shows that the elemental copper is present in the obtained powder and it is found that the average crystallite size is around 27.6 nm.Abstract:
Today’s society is technology dependent. As a result, there is a massive intensification in the production of electronic waste (E-waste) which has reusable and recyclable parts. Waste Printed Circuit Boards (WPCBs) are the type of E-wastes where recycling approach can be applied. This paper describes the synthesis of copper nanoparticles from E-waste which is having copper metal content present in it. Here we use bioleaching process to obtain copper sulphate from E-waste and chemical reduction is used to synthesize copper nanoparticle from the obtained copper sulphate. The XRD result shows that the elemental Copper is present in the obtained powder and it is found that the average crystallite size is around 27.6 nm. The SEM and EDX results clearly indicate that presence of copper and copper oxide. Copper nanoparticles have several applications which include biomedical field like drug delivery system, detection of dopamine, amino acids, etc. They also find applications in the preparation of disinfectant for waste water, used as nanometal lubricant additives, sintering additives, and capacitor materials, used in metal and non-ferrous metal superficial conductive coating process. They offer appropriate catalytic potential and dye reduction properties.read more
Citations
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Journal ArticleDOI
Synthesis and Characterization of Ferrous and Copper Nanoparticles from E-Waste Using Biological Reduction by Lichen-Associated Bacteria and Their Application in Antifouling Activity
Rubavathi Subbaiyan,Ayyappadasan Ganesan,Bhurniammal Sasikumar,Srilekha Rajendran,Brindha Ramasubramanian +4 more
Proceedings ArticleDOI
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Proceedings ArticleDOI
A Fiber-Wireless Monitoring System with a QoE Instrument for Smart Grid Technology
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Proceedings ArticleDOI
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References
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Journal ArticleDOI
Metal Extraction Processes for Electronic Waste and Existing Industrial Routes: A Review and Australian Perspective
TL;DR: In this paper, current metallurgical processes for the extraction of metals from e-waste, including existing industrial routes, are reviewed, and challenges such as collection, transportation, liberation of metal fractions, and installation of integrated smelting and refining facilities are identified.
Journal ArticleDOI
Study on the influence of various factors in the hydrometallurgical processing of waste printed circuit boards for copper and gold recovery.
TL;DR: The present lab-scale experimental study presents the process of leaching waste printed circuit boards (WPCBs) in order to recover gold by thioureation, and the effects of sulfuric acid concentration, hydrogen peroxide volume and temperature on the metal extraction yield were studied.
Journal ArticleDOI
A Cleaner Process for Selective Recovery of Valuable Metals from Electronic Waste of Complex Mixtures of End-of-Life Electronic Products.
TL;DR: A two-stage leaching design of this process was adopted in order to selectively extract copper and enrich precious metals and it was found that the recovery efficiency and extraction selectivity of copper both reached more than 95% by using ammonia-based leaching solutions.
Journal ArticleDOI
Recovery of copper and lead from waste printed circuit boards by supercritical water oxidation combined with electrokinetic process
Fu-Rong Xiu,Fu-Shen Zhang +1 more
TL;DR: Experimental results showed that supercritical water oxidation (SCWO) process was strong enough to decompose the organic compounds of PCBs, and XRD spectra indicated that copper and lead were oxidized into CuO, Cu( 2)O and beta-PbO(2) in the process.
Journal ArticleDOI
Superfine copper powders recycled from concentrated metal scraps of waste printed circuit boards by slurry electrolysis
TL;DR: In this article, the effect of polyvinyl pyrrolidone (PVP), oleic acid and H2SO4 concentration, current density and electrolysis time on the purity and particle size of copper powders were discussed in detail.