Abstract
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 language | English |
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Article number | 012032 |
Number of pages | 10 |
Journal | Journal of Physics: Conference Series |
Volume | 2080 |
Issue number | 1 |
DOIs | |
Publication status | Published - 12 Nov 2021 |
MoE publication type | A4 Article in a conference publication |
Event | 1st International Conference on Green Materials, Processing and Characterization 2021, ICoGMPAC 2021 - Perlis, Malaysia Duration: 12 Oct 2021 → 12 Oct 2021 |
Funding
This work was financially supported by the Fundamental Research Grant Scheme FRGS/1/2014/TK04/UNIMAP/02/2 from Ministry of Education Malaysia (MOE).