Effect of Process Parameters on Properties of Colloids in a Continuous-Flow Microreactor System

The effect of reactant concentration, flow rate, and surfactant type on the size and distribution of synthesized nanoparticles was studied. Two tubular microreactors made of polyvinyl chloride (PVC) and stainless steel (SS) were used for production of iron oxide nanoparticles from FeCl3 and NaBH4 as...

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Bibliographic Details
Published in:Chemical engineering & technology 2015-10, Vol.38 (10), p.1765-1773
Main Authors: Sonawane, Shirish H., Bari, Mahendra L., Suryawanshi, Prashant L., Narkhede, Jitendra S., Mishra, Satyendra, Bhanvase, Bharat A.
Format: Article
Language:English
Subjects:
Chemical reduction
Colloidal nanoparticles
Colloiding
Ferric chloride
Field emission microscopy
Flow rate
Flow velocity
Fourier transforms
Iron oxide nanoparticles
Iron oxides
Microreactor
Microreactors
Nanoparticles
Particle size distribution
Polyvinyl chloride
Polyvinyl chlorides
Process parameters
Size distribution
Stainless steels
Surfactants
Synthesis
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Summary:The effect of reactant concentration, flow rate, and surfactant type on the size and distribution of synthesized nanoparticles was studied. Two tubular microreactors made of polyvinyl chloride (PVC) and stainless steel (SS) were used for production of iron oxide nanoparticles from FeCl3 and NaBH4 as precursors by a chemical reduction route. The diameter of the microreactor and other process parameters were found to influence the size and size distribution of iron oxide nanoparticles. The axial dispersion in the PVC microreactor was less than in the SS microreactor due the large ratio of microreactor volume to flow rate. The formation of iron oxide was detected by Fourier transform infrared, X‐ray diffraction, and field emission scanning electron microscopy (FESEM). Synthesis of stable colloidal iron oxide nanoparticles with narrow size distribution in this continuous‐flow microreactor system was confirmed. Microreactor‐assisted synthesis of stable iron oxide nanoparticles with narrow size distribution is described. The reduction route was adopted for the production of monodisperse iron oxide nanoparticles. The influence of FeCl3 concentration, precursor flow rate, and surfactant type on size, size distribution, and stability of the synthesized nanoparticles was evaluated.
ISSN:0930-7516
1521-4125
DOI:10.1002/ceat.201500262