Synthesis and Characterization of Electrochemical Properties of Manganese Ferrite Nanoparticles (\ce {MnFe2O4}) from Iron

Omega: Jurnal Fisika dan Pendidikan Fisika Pub Date : 2019-07-06 DOI:10.31758/OMEGAJPHYSPHYSEDUC.V5I1.15

S. Husain, M. Irfansyah, A. Riyanto, S. Arjo

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Abstract

Synthesis and characterization of the electrochemical properties of manganese ferrite nanoparticles (\ce {MnFe2O4}) from iron ore have been done. The aim of this research was to determine the potential of iron ore as a source for the manufacture of \ce {MnFe2O4} and to know electrochemical characterization. The precipitation method was used in this research. Iron ore samples were taken from Tanah Laut Regency, South Kalimantan, Indonesia. The sample of iron ore was purified first to synthesis MnFe2O4 nanoparticle. Manganese salt \ce {MnCl2} is used as a source of manganese. Characterization of samples use TEM and potentiostat. Glucose oxidase (GOD) is used as a sample to be given electrochemical properties of the sample. The GOD concentration used is 0.2; 0.4; 0.6; and 0.8 ppm. The range of \ce {MnFe2O4} nanoparticles was successfully made with sample diameters ranging from 1.5 to 12.5 nm. The current values obtained on \ce {MnFe2O4} nanoparticles range from $0.226 - 0.322$ mA. The sensitivity of \ce {MnFe2O4} nanoparticles is around 0.16 mA/ppm. The higher the concentration used, the greater the current produced.

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铁基铁酸锰纳米粒子(\ce {MnFe2O4})的合成及电化学性能表征

以铁矿石为原料合成了铁酸锰纳米粒子(\ce {MnFe2O4})，并对其电化学性能进行了表征。这项研究的目的是确定铁矿石作为制造\ce {MnFe2O4}的来源的潜力，并了解电化学表征。本研究采用沉淀法。铁矿石样本取自印度尼西亚南加里曼丹的Tanah Laut Regency。首先对铁矿石样品进行提纯，合成纳米颗粒MnFe2O4。锰盐{MnCl2}被用作锰的来源。用TEM和恒电位器对样品进行表征。以葡萄糖氧化酶(GOD)为样品，测定样品的电化学性质。使用的GOD浓度为0.2;0.4;0.6;0.8 ppm。成功制备了直径为1.5 ~ 12.5 nm的\ce {MnFe2O4}纳米颗粒。在\ce {MnFe2O4}纳米粒子上得到的电流值在0.226 ~ 0.322$ mA之间。\ce {MnFe2O4}纳米粒子的灵敏度约为0.16 mA/ppm。使用的浓度越高，产生的电流越大。

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Omega: Jurnal Fisika dan Pendidikan Fisika

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