Open AccessMagnetic-Based Coreshell Nanoparticles as Potential Adsorbents for the Removal of Cu2+ Under Ultraviolet (UV) Light
Author(s) -
Hazreen Nadihah Husni,
Norsuria Mahmed,
Yanling Ge,
Mohd Natashah Norizan,
Dewi Suriyani Che Halin,
Kamrosni Ab Razak,
Ili Salwani Mohamad
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2080/1/012032
Subject(s) - maghemite , adsorption , magnetite , copper , aqueous solution , chloride , ion , inorganic chemistry , nanoparticle , materials science , chemistry , nuclear chemistry , metallurgy , nanotechnology , organic chemistry
The magnetite (Fe 3 O 4 ) and maghemite (γFe 2 O 3 ) nanopartides, magnetite-silica-silver chloride (Fe 3 O 4 -SiO 2 -AgCl) and maghemite-silica-silver chloride (γFe 2 O 3 -SiO 2 -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, Cu 2+ 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 Fe 3 O 4 (94%) and γFe 2 O 3 (92%) nanoparticles. The maximum removal of copper ions was nearly 100% when yFe 2 O 3 -SiO 2 -AgCl & Fe 3 O 4 -SiO 2 -AgCl coreshell particles were used. The samples that were prepared without magnetic core such as AgCl-SiO 2 , AgCl and SiO 2 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.