Influence of calcination temperature on synthesis of magnetite (Fe3O4) nanoparticles by sol-gel method
Conference proceedings article
ผู้เขียน/บรรณาธิการ
กลุ่มสาขาการวิจัยเชิงกลยุทธ์
ไม่พบข้อมูลที่เกี่ยวข้อง
รายละเอียดสำหรับงานพิมพ์
รายชื่อผู้แต่ง: Worawong A., Jutarosaga T., Onreabroy W.
ผู้เผยแพร่: Trans Tech Publications
ปีที่เผยแพร่ (ค.ศ.): 2014
Volume number: 979
หน้าแรก: 208
หน้าสุดท้าย: 211
จำนวนหน้า: 4
ISBN: 9783038351450
นอก: 1022-6680
eISSN: 1662-8985
ภาษา: English-Great Britain (EN-GB)
บทคัดย่อ
Magnetite (Fe3O4) nanoparticles were successfully synthesized by the sol-gel method from ferric nitrate-EG (EG=ethylene glycol) gel. The precursors were calcined in argon under an atmospheric pressure at the temperatures varied from 400ฐC to 500ฐC. The synthesized magnetic nanoparticles were characterized by X-ray diffractrometer (XRD), field emission scanning electron microscope (FE-SEM) and vibrating sample magnetometer (VSM). The XRD patterns of powder calcined temperature at 400ฐC showed clearer Fe3O4 phase than those calcined at other temperatures. The particle size and morphology of magnetic nanoparticles were studied using FESEM. The FE-SEM images showed that the particle sizes varied from 30-108 nm. The particle sizes increased with the increase of calcination temperature. VSM measurements indicated that the Fe3O4 nanoparticles were soft ferrite with the maximum magnetization (Mm) and coercivity (Hc) of 35 emu/g and 17 Oe, respectively. ฉ (2014) Trans Tech Publications, Switzerland.
คำสำคัญ
Sol-gel method