Natural iron sand-based Mg1-xNixFe2O4 nanoparticles as potential adsorbents for heavy metal removal synthesized by co-precipitation method

3rd International Symposium on Green Technology for Value Chains 2018

生态环境科学;自然科学（总论）

Putri, W.B.K.^1 ; Setiadi, E.A.^1 ; Herika, V.^2 ; Tetuko, A.P.^1 ; Sebayang, P.^1

Research Center for Physics, Indonesian Institute of Sciences (LIPI), Puspiptek Office Area, Tangerang Selatan

15314, Indonesia^1

Department of Physics, Faculty of Mathematics and Natural Science, University of North Sumatera (USU) 1st, Bioteknologi St. USU, Medan

20155, Indonesia^2

关键词: Adsorption capacities;    Atomic absorption spectroscopy;    Coprecipitation method;    Magnetic nano-particles;    Potential adsorbents;    Removal of heavy metal ions;    Surface microstructures;    Vibrating sample magnetometer;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/277/1/012031/pdf
DOI  :  10.1088/1755-1315/277/1/012031

来源: IOP

【 摘 要 】

Natural iron sand-based Mg1-xNixFe2O4 magnetic nanoparticles (x = 0.25, 0.50, 0.75) were synthesized using a simple co-precipitation method. The resulting nanoparticles were characterized by X-Ray Diffraction, Vibrating Sample Magnetometer, Energy Dispersive X-Ray Analysis, Atomic Absorption Spectroscopy and Scanning Electron Microscopy. The crystallite size data of the Mg1-xNixFe2O4 revealed that all samples with varied x lie under 17 nm; with x = 0.5 variation having the least crystallite size of 14.90 nm. The surface microstructure elucidation by SEM also confirmed the presence of agglomeration at x = 0.5. Optimal condition of magnetic properties was observed in Mg1-xNixFe2O4 (x = 0.75), as was displayed by the M-H curves. The adsorption capacity up to 190.5 mg/g implies that Mg1-xNixFe2O4 nanoparticles have the ability to emerge as one of the beneficial adsorbents for the removal of heavy metal ions, mainly Pb and Cu ions.