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Synthesis of EDTA Functionalized Silica Coated Nanomagnetite as Cobalt(II) Ion Adsorbent
Abstract
This research aims to synthesize silica coated nanomagnetite EDTA functionalized (Fe3O4@SiO2-EDTA) to characterize its properties and test its ability to bind Co(II) metal ions. This research was carried out in several step including, (1) synthesis of nanomagnetite and characterization using SEM, VSM, XRD, and FTIR (2) synthesis of nanomagnetite coated silica (TEOS) and characterization using SEM, VSM, 3) synthesis and characterization of silica-coated nanomagnetite with EDTA functionalization (Fe3O4@SiO2-EDTA) and characterization was carried out using SEM, VSM, XRD, and FTIR. (4) adsorption ability test (Fe3O4@SiO2-EDTA) as a Co(II) metal ion adsorbent. EDTA functionalized silica coated nanomagnetite has been successfully synthesized. Confirmation and characterization of the synthesized material has been analyzed based on the FTIR spectrum band at wave number 687 cm -1 confirms the formation of magnetite, while the absorption band at wave number 1092 cm -1 confirms silica coating and the peak at wave number 1617 cm -1 confirms EDTA functionalization in the material. The peak of the XRD chromatogram is seen with XRD pattern 2 which confirms nanomagnetite, and in silica coated nanomagnetite the resulting characteristic peak is the same as the characteristic peak in Fe3O4 except in region 24 which confirms the presence of silica coating. The magnetization of nanomagnetite before coating is 57 emu/g and after coating is 48 emu/g. Themaximum adsorption ability of the synthesized material for Co(II) ions was 0.1336 mg/g.
Keywords
References
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DOI: http://dx.doi.org/10.30870/educhemia.v9i1.22639
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