Magnetic-Based Coreshell Nanoparticles as Potential Adsorbents for the Removal of Cu2+ under Ultraviolet (UV) Light

Hazreen Nadihah Husni, Norsuria Mahmed (Corresponding Author), Yanling Ge, Mohd Natashah Norizan, Dewi Suriyani Che Halin, Kamrosni Ab Razak, Ili Salwani Mohamad

    Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review


    The magnetite (Fe3O4) and maghemite (gFe2O3) nanoparticles, magnetite-silica-silver chloride (Fe3O4-SiO2-AgCl) and maghemite-silica-silver chloride (gFe2O3-SiO2-AgCl) coreshell structures have successfully been synthesized by using a simple wet chemistry method. The efficiency of these particles as the adsorbents for the removal of copper ion, Cu2+ in aqueous solution under UV light was investigated. Two different parameters were studied, namely the adsorbents contact time (60, 120, 180, 240 and 300s) and the solution-stirring rate (100, 200 and 300 rpm). From the results, the removal percentage of the copper ions from the solution were above 90% after 5 hours of adsorption process at 300 rpm by using Fe3O4 (94%) and gFe2O3 (92%) nanoparticles. The maximum removal of copper ions was nearly 100% when gFe2O3-SiO2-AgCl & Fe3O4-SiO2-AgCl coreshell particles were used. The samples that were prepared without magnetic core such as AgCl-SiO2, AgCl and SiO2 particles, showed lower percentage of the copper ions removal (78%, 60% and 20%, respectively). This situation shows that the magnetic nanoparticles plays and important role during the adsorption process due to their large active sites for the adsorption to occur.

    Original languageEnglish
    Article number012032
    Number of pages10
    JournalJournal of Physics: Conference Series
    Issue number1
    Publication statusPublished - 12 Nov 2021
    MoE publication typeA4 Article in a conference publication
    Event1st International Conference on Green Materials, Processing and Characterization 2021, ICoGMPAC 2021 - Perlis, Malaysia
    Duration: 12 Oct 2021 → …


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