Fabrication of Oxide Ceramic MgFe2O4 Using Iron Oxide Isolated from Lapindo Mud as a Raw Material

The Journal of Pure and Applied Chemistry Research

Akhmad Sabarudin¹  Rachmat Triandi Tjahjanto¹  Riska Yudhistia Asworo¹ 

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关键词: Lapindo mud;    Fe2O3;    MgO;    MgFe2O4;    oxide ceramics;   

DOI  :  10.21776/ub.jpacr.2013.002.03.156

来源: University of Brawijaya

【 摘 要 】

The quite high content (28.8%) of iron oxide (Fe 2 O 3 ) in Lapindo Sidoarjo`s mud promotes as a potential raw material for fabrication of oxide ceramics. The preeminence magnetic properties of iron oxide materials have led to be widely used for preparation of noteworthy products i.e semiconductor ceramics. However, the high band gap of iron oxide results in high resistivity, limiting its application as semiconductor ceramics. The addition of other oxides to iron oxide is able to reduce the energy gap of resulted oxide ceramics. Accordingly, in this study, MgO is added to Fe 2 O 3 isolated from Lapindo mud for preparation of the oxide ceramic MgFe 2 O 4 . The products are characterized, which include crystal structure, crystal size and resistivity . It was found that the addition of MgO decreased the volume fraction of spinel structure formation, the average of crystal size, and the resistance value. The ratio MgO/Fe 2 O 3 of 3:7 and a sintering temperature of 1300 o C show the optimum composition for fabrication of MgFe 2 O 4 with the volume fraction of 0.72 and the crystal size of 49.06 nm as characterized by XRD.

【 授权许可】

Unknown