Synthesis of Fe3O4 nanocrystals using hydrothermal approach

被引：85

作者：

Ahmadi, Shideh ^{[1
]}

Chia, Chin-Hua ^{[1
]}

Zakaria, Sarani ^{[1
]}

Saeedfar, Kasra ^{[2
,4
]}

Asim, Nilofar ^{[3
]}

机构：

[1] Natl Univ Malaysia UKM, Fac Sci & Technol, Sch Appl Phys, Bangi 43600, Selangor, Malaysia

[2] Natl Univ Malaysia UKM, Fac Sci & Technol, Sch Chem Sci & Food Technol, Bangi 43600, Selangor, Malaysia

[3] Natl Univ Malaysia UKM, Solar Energy Res Inst, Bangi 43600, Selangor, Malaysia

[4] KN Toosi Univ Technol, Fac Sci, Dept Chem, Tehran 158754416, Iran

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2012年 / 324卷 / 24期

关键词：

Hydrothermal; Magnetite; Nanocrystals; Superparamagnetic; MAGNETITE NANOPARTICLES;

D O I：

10.1016/j.jmmm.2012.07.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetite (Fe3O4) nanocrystals were synthesized using a facile hydrothermal method. FeCl2, FeCl3 and NaOH with a molar ratio of 1:2:8 were added into an autoclave and this was followed by heat treatment at elevated temperature (100,150 and 200 degrees C). The produced results show that the average crystallite and the physical size of the resulting Fe3O4 nanocrystals increased with the hydrothermal temperature. The Fe3O4 nanocrystals exhibited superparamagnetic behavior. The saturation magnetization and coercivity of the produced nanocrystals also increased with the hydrothermal temperature. (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：4147 / 4150

页数：4

共 22 条

[1]

[Anonymous], 1999, HDB CHEM VAPOR DEPOS

[2] SURFACE EFFECTS IN METALLIC IRON NANOPARTICLES [J].

BODKER, F ;

MORUP, S ;

LINDEROTH, S .

PHYSICAL REVIEW LETTERS, 1994, 72 (02) :282-285

[3]

CHAN DCF, 1993, J MAGN MAGN MATER, V122, P374, DOI 10.1016/0304-8853(93)91113-L

[4] Activity of Candida rugosa lipase immobilized on γ-Fe2O3 magnetic nanoparticles [J].

Dyal, A ;

Loos, K ;

Noto, M ;

Chang, SW ;

Spagnoli, C ;

Shafi, KVPM ;

Ulman, A ;

Cowman, M ;

Gross, RA .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (07) :1684-1685

[5]

Fu L., 2002, EUROPEAN CELL MAT, V3, P156

[6] Characterization of magnetic nano-crystalline systems [J].

Ghominezhad, M ;

Sebt, A ;

Akhavan, M .

MAGNETIC AND SUPERCONDUCTING MATERIALS, (MSM-99), VOLS A AND B, 2000, :1099-1106

[7]

Hua CC, 2008, SAINS MALAYS, V37, P389

[8] Magnetism and the Verwey transition in Fe3O4 under pressure [J].

Klotz, S. ;

Steinle-Neumann, G. ;

Straessle, Th. ;

Philippe, J. ;

Hansen, Th. ;

Wenzel, M. J. .

PHYSICAL REVIEW B, 2008, 77 (01)

[9] Magnetic and gold-coated magnetic nanoparticles as a DNA sensor [J].

Kouassi, Gilles K. ;

Irudayaraj, Joseph .

ANALYTICAL CHEMISTRY, 2006, 78 (10) :3234-3241

[10] Processing of iron oxide nanoparticles by supercritical fluids [J].

Lam, Un Teng ;

Mammucari, Raffaella ;

Suzuki, Kiyonori ;

Foster, Neil R. .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2008, 47 (03) :599-614

← 1 2 3 →