Green synthesis of sub 10 nm silver nanoparticles in gram scale using free impinging jet reactor

Sahoo, K and Kumar, S (2021) Green synthesis of sub 10 nm silver nanoparticles in gram scale using free impinging jet reactor. In: Chemical Engineering and Processing - Process Intensification, 165 .

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Abstract

In this paper we report controlled synthesis of sub 10 nm silver nanoparticles at 30 g/day at room temperature condition using a green protocol using a free impinging jet reactor. The focus is on impingement of low velocity liquid jets to ensure process completion in the film. Identical liquid jets of 400-micron diameter with low Weber number (We = 10�40) were impinged at different approach angles (90°�150°) to explore mixing characteristics using iodide-iodate reaction system. The regime showed monotonic improvement in silver nanoparticle mean size and polydispersity with increase in We. The smallest and most uniform (5.2 ± 0.9 nm) particles could be synthesized at We = 40. The study also establishes the horizontal component of jet velocity as a parameter to control mixing and particle size. Under identical reaction condition a free impinging jet reactor outperformed two other continuous reactors viz. a spinning disc reactor and a spinning disc spinning bowl reactor in terms of mean particle size. © 2021

Item Type:	Journal Article
Publication:	Chemical Engineering and Processing - Process Intensification
Publisher:	Elsevier B.V.
Additional Information:	The copyright for this article belongs to Elsevier B.V.
Department/Centre:	Division of Mechanical Sciences > Chemical Engineering
Date Deposited:	26 Aug 2021 10:55
Last Modified:	26 Aug 2021 10:55
URI:	http://eprints.iisc.ac.in/id/eprint/69309

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