1. RAMLAN - Department of Physics, Faculty of Natural Sciences, Sriwijaya University, Inderalaya, Ogan Ilir (OI). South
Sumatera, Indonesia.
2. LUH AYU - Department of Physics, Faculty of Natural Sciences, Sriwijaya University, Inderalaya, Ogan Ilir (OI). South
Sumatera, Indonesia.
3. AHKMAD AMINUDDIN BAMA - Department of Physics, Faculty of Natural Sciences, Sriwijaya University, Inderalaya, Ogan Ilir (OI). South
Sumatera, Indonesia.
4. AKMAL JOHAN - Department of Physics, Faculty of Natural Sciences, Sriwijaya University, Inderalaya, Ogan Ilir (OI). South
Sumatera, Indonesia.
5. MARZUKI NAIBAHO - Department of Physics, Universitas Indonesia, Depok, Indonesia.
Center for Advanced Materials Research (PRMM) - National Research and Innovation Agency (BRIN),
Complex Puspiptek Building 440-441, Tangerang-South, Banten, Indonesia.
6. MASNO GINTING - Center for Advanced Materials Research (PRMM) - National Research and Innovation Agency (BRIN),
Complex Puspiptek Building 440-441, Tangerang-South, Banten, Indonesia.
MnFe2O4 and MnFe2O4-Zeolite have been synthesized from sand and zeolite using the co-precipitation method for absorbing ions Pb(II) and Cu(II) in aqueous media. Samples were then characterized using SEM-EDX, XRD, VSM, BET, and AAS. The results of SEM-EDX show that the particle shape of MnFe2O4 and MnFe2O4 - zeolite is not uniform. MnFe2O4 particle size is 5-25 µm and MnFe2O4-zeolite 2-29 µm and there are impurities such as Mg, Cl, Ti, and V. XRD results confirm the presence of MnFe2O4 and other phases such as TiO2 and SiO2. VSM measurement shows that both MnFe2O4 and MnFe2O4-Zeolite are soft magnets with coercivity values of 302.12 Oe and 406.04 Oe consecutively. While BET analysis shows that the surface area, pore volume, and pore size of MnFe2O4 -zeolite are 222.91 m2 /g, 0.30 cm3 /g, and 2.70 nm larger than those of MnFe2O4. Then AAS measurement shows the optimum adsorption for Pb and Cu ions using MnFe2O4 at a dose of 100 mg/L are 96.59% and 99.24%, while for the MnFe2O4 – zeolite adsorbent for Pb ion at a dose of 100 mg/L is 96.91% and Cu ion at dose of 50 mg/L is 99.54%. In general, it was found that the adsorption percentage for both Pb and Cu ions was higher using the MnFe2O4– zeolite than the MnFe2O4.
MnFe2O4, MnFe2O4-Zeolite, Adsorption, Co-precipitation, Heavy Metal.