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    Bubble formation in water with magnetite nanoparticles during microwave irradiation

    Access Status
    Fulltext not available
    Authors
    Asakuma, Y.
    Nakata, R.
    Saptoro, Agus
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Asakuma, Y. and Nakata, R. and Saptoro, A. 2017. Bubble formation in water with magnetite nanoparticles during microwave irradiation. Chemical Engineering and Processing. 119: pp. 101-105.
    Source Title
    Chemical Engineering and Processing
    DOI
    10.1016/j.cep.2017.06.005
    ISSN
    0255-2701
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/63619
    Collection
    • Curtin Research Publications
    Abstract

    © 2017 Elsevier B.V. In this study, bubble formation phenomena in the dispersion medium of magnetite nanoparticle in water during microwave irradiation were investigated. From the experimental results, it was found that under microwave treatment, the maximum bubble size was greatly influenced by the suspension density at a given temperature due to the distribution of microwave energy to the particles itself or the liquid-air interface of bubbles around the particle. Nanoparticles in the dispersion medium were also found to play a key role in achieving stable nucleation of bubbles on particles surface. Smaller bubble sizes were produced at higher suspension density. Microwave power also has a positive impact on the maximum bubble size especially at low suspension density. Moreover, particle material having dielectric constant property was also found to be an important factor for bubble size during microwave irradiation. From these results and findings, it is envisaged that bubble size can be controlled by the presence of nanoparticle and microwave irradiation.

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