Study of Heavy Metal Ions Mn(II), Zn(II), Fe(II), Ni(II), Cu(II), and Co(II) Adsorption Using MFe₂O₄ (M=Co²⁺, Mg²⁺, Zn²⁺, Fe²⁺, Mn²⁺, and Ni²⁺) Magnetic Nanoparticles as Adsorbent

Abstract

Removal of heavy metal ions (Co2+, Cu2+, Zn2+, Fe2+, Mn2+, and Ni2+) from artificial wastewater has been successfully perfomed by adsorption process using magnetic ferrite (MFe2O4; M=Co2+, Mg2+, Zn2+, Fe2+, Mn2+, and Ni2+) nanoparticles. Ferrite nanoparticles were synthesized using coprecipitation method and used as absorbent in heavy metal ions removal with concentration of 5 g/L and 10 g/L. The adsorption and desorption ability of each ferrite nanoparticles, the effect of heavy metal ion in adsorption and desorption process, and the endurance of ferrite nanoparticles were investigated using atomic absorption spectroscopy (AAS). The removal process has been conducted for wastewater at pH 7.It showed the presence of heavy metal precipitate in solution. The result shows that MgFe2O4 has the highest adsorption ability than other ferrite and MnFe2O4 is the lowest. Desorption ability of all ferrites is high except for Fe ion removal. Desorption of Fe ion shows very low result which might due to FeO bond from Fe ion reaction in acid solution. The endurance of MnFe2O4 and Fe3O4 as adsorbent after repeated adsorption and desorption process is up to 4 times and more than 6 times. The MnFe2O4 nanoparticles show a stability in adsorption ability after 4 times repetition adsorption and desorption process.

A study of biochemical route on construction of waste battery ferrite applying for nickel removal

“…It means that the prepared magnetic adsorbent has a good broad-spectrum of adsorption for metal ions. Moreover, compared with other forms of ferrite nanomaterials prepared by different approaches (Aji and Suharyadi 2017;Chella et al 2015;Duan et al 2015;Hou et al 2011;Ivanets et al 2018;Ren et al 2012;Srivastava et al 2015) as judged in Table 4, the prepared Mn 0.6 Zn 0.4 Fe 2 O 4 exhibited promising convenient magnetic separation for its regeneration. However, further studies are needed to achieve a higher specific surface area for improving its adsorption performance.…”

The synthesis of CoxNi1−xFe2O4/multi-walled carbon nanotube nanocomposites and their photocatalytic performance

“…[15][16][17][18] It can produce photogenerated electron-hole pairs when irradiated by light, which can lead to redox reactions to achieve the goal of photocatalysis. [19][20][21][22][23][24] Moreover, spinel ferrites can also catalyze the decomposition of hydrogen peroxide to produce hydroxyl radicals and oxidize organic pollutants such as synthetic dyes in water. 25,26 Although enormous progress has been already achieved in the integration of ferrites to improve the photocatalytic performance of materials, more attention should be focused on further enhancing the adsorption capacity and promoting the separation rate of photogenerated electron-hole pairs to substantially expand the application eld of photocatalysts.…”