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Online characterisation of nanoparticle suspensions using dynamic light scattering, ultrasound spectroscopy and process tomography

Wang, Xue Z., Liu, Lande, Li, Rui F., Tweedie, Richard J., Primrose, Ken, Corbett, Jason and McNeil-Watson, Fraser K. (2009) Online characterisation of nanoparticle suspensions using dynamic light scattering, ultrasound spectroscopy and process tomography. Chemical Engineering Research and Design, 87 (6). pp. 874-884. ISSN 0263-8762

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Abstract

Nanoparticle processing in industry faces major challenges in process scale-up and in maintaining consistency and reproducibility in product quality. Online characterisation of product quality and process conditions can help industry effectively address the challenges, because based on real-time measurements, process control and quality assurance strategies can be developed. This paper investigates the use of dynamic light scattering (DLS), ultrasound spectroscopy (USS) and electrical resistance tomography (ERT) for online characterisation of processes of nanoparticle suspensions. The integrated system provides real-time information of particle size distribution (PSD), zeta potential, conductivity and solid concentration and visualises the mixing behaviour between solid and liquid phases. In addition, ERT provides solid concentration data that is needed by DLS and USS for PSD characterisation. The study focuses on examining the impacts of solid concentration, zeta potential and mixing on the stability of suspension systems and the result of size characterisation. The knowledge learnt provides useful information for applying these sensors to nanoparticle manufacturing processes for online process and product quality control.

Item Type: Article
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TP Chemical technology
T Technology > TS Manufactures
Schools: School of Applied Sciences
Related URLs:
Depositing User: Lande Liu
Date Deposited: 05 May 2015 11:34
Last Modified: 05 May 2015 11:34
URI: http://eprints.hud.ac.uk/id/eprint/24384

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