Ni0.5Zn0.5Fe2O4 nanoparticles were synthesized by thermal decomposition method. The influence of reaction conditions such as the amount of the surfactant, refluxing temperature and time on the size, morphology and dispersibility was investigated. The structure, morphology and magnetic properties of the samples were characterized by X-ray diffraction(XRD), transmission electron microscopy(TEM) and vibrating sample magnetometry(VSM). The results indicate that increasing the amount of the surfactant is beneficial to obtain samples with smaller particle size and better dispersibility, and the improving refluxing temperature and extending refluxing time is beneficial to obtain samples with larger particle size, but with wider size distribution. The saturation magnetization of the sample is determined to be 49.38A·m2/kg, coercivity is 7143.20A/m and remanent magnetization is 5.76A·m2/kg with ferrimagnetic behavior at room temperature when the reaction condition is determined as follows, the amount of TOPO is 0.6mmol, the refluxing temperature is 260℃ and the refluxing time is 1h.
WANG L S , NIE S J , WANG J B , et al. Effect of experiment parameters on the structure and magnetic properties of NiZn-ferrite films[J]. Materials Chemistry and Physics, 2015, 160, 321- 328.
doi: 10.1016/j.matchemphys.2015.04.044
2
WANG L , DONG H , LI J , et al. Effects of annealing temperature on structural and magnetic properties of Ni0.8Zn0.2Fe2O4 thin films[J]. Ceramics International, 2014, 40 (7): 10323- 10327.
doi: 10.1016/j.ceramint.2014.03.004
3
GUTIERREZ-LPEZA J , LEVENFELDA B , VAREZA A , et al. Study of the densification, mechanical and magnetic properties of Ni-Zn ferrites sintered in a solar furnace[J]. Ceramics International, 2015, 41 (5): 6534- 6541.
doi: 10.1016/j.ceramint.2015.01.096
ZHAO H T , ZHANG Q , LIU R P , et al. Synthesis and magnetic properties of monodisperse ZnFe2O4 nanoparticles[J]. Journal of Materials Engineering, 2016, 44 (1): 103- 107.
doi: 10.11868/j.issn.1001-4381.2016.01.016
5
IBRAHIM I R , HASHIM M , NAZLAN R , et al. Grouping trends of magnetic permeability components in their parallel evolution with microstructure in Ni0.3Zn0.7Fe2O4[J]. Journal of Magnetism and Magnetic Materials, 2014, 355, 265- 275.
doi: 10.1016/j.jmmm.2013.12.024
6
RASHAD M M , RAYAN D A , TURKY A O , et al. Effect of Co2+ and Y3+ ions insertion on the microstructure development and magnetic properties of Ni0.5Zn0.5Fe2O4 powders synthesized using Co-precipitation method[J]. Journal of Magnetism and Magnetic Materials, 2015, 374, 359- 366.
doi: 10.1016/j.jmmm.2014.08.031
CAO H Q , WEI B , LIU J H , et al. Hydrothermal synthesis and magnetic properties of nanosized nickel zinc ferrite powder[J]. Journal of the Chinese Ceramic Society, 2007, 35 (6): 713- 716.
ZHANG Y G , XU B , WANG S L , et al. Preparation and photocatalytic properties of Ni-Zn ferrite nanopower[J]. Journal of Functional Materials, 2013, 44 (14): 2010- 2013.
doi: 10.3969/j.issn.1001-9731.2013.14.008
ZHANG N , WU H Q , MAO L , et al. Microwave-assisted polyol synthesis and magnetic properties of monodisperse Ni1-xZnxFe2O4/MWCNTs nanocomposites[J]. Journal of Functional Materials, 2012, 43 (18): 2554- 2557.
doi: 10.3969/j.issn.1001-9731.2012.18.029
10
ZHU Y , JIANG F Y , CHEN K X , et al. Size-controlled synthesis of monodisperse superparamagnetic iron oxide nanoparticles[J]. Journal of Alloys and Compounds, 2011, 509 (34): 8549- 8553.
doi: 10.1016/j.jallcom.2011.05.115
11
SONG M J , ZHANG Y , HU S L , et al. Influence of morphology and surface exchange reaction on magnetic properties of monodisperse magnetite nanoparticles[J]. Colloids and Surfaces A:Physicochemical and Engineering Aspects, 2012, 408, 114- 121.
12
ZHANG L , HE R , GU H C . Oleic acid coating on the monodisperse magnetite nanoparticles[J]. Applied Surface Science, 2006, 253 (5): 2611- 2617.
doi: 10.1016/j.apsusc.2006.05.023
13
LI D , JIANG D L , CHEN M , et al. An easy fabrication of monodisperse oleic acid-coated Fe3O4 nanoparticles[J]. Materials Letters, 2010, 64 (22): 2462- 2464.
doi: 10.1016/j.matlet.2010.08.025
LI H , ZHANG X B . Effect of complexing agents/surfactants on flowery Co microcrystals prepared by solvothermal method[J]. Inorganic Chemicals Industry, 2010, 42 (6): 30- 32.
CHEN J . High temperature polyol synthesis of superparamagnetic CoFe2O4 nanoparticles for magnetic resonance imaging contrast agents[J]. Journal of Inorganic Materials, 2009, 24 (5): 967- 972.
16
ABBAS M , PARVATHEESWARA RAO B , KIM C G . Shape and size-controlled synthesis of Ni-Zn ferrite nanoparticles by two different routes[J]. Materials Chemistry and Physics, 2014, 147 (3): 443- 451.
doi: 10.1016/j.matchemphys.2014.05.013
17
HAJALILOUA A , HASHIM M , EBRAHIMI-KAHRIZSANGI R , et al. Synthesis and structural characterization of nano-sized nickel ferrite obtained by mechanochemical process[J]. Ceramics International, 2014, 40 (4): 5881- 5887.
doi: 10.1016/j.ceramint.2013.11.032
18
GHASEMIN A , MOUSAVINIA M . Structural and magnetic evaluation of substituted NiZnFe2O4 particles synthesized by conventional sol-gel method[J]. Ceramics International, 2014, 40 (2): 2825- 2834.
doi: 10.1016/j.ceramint.2013.10.031
19
LAZAREVIĆ Z Ž , MILUTINOVIĆ A N , JOVALEKIĆČ D , et al. Spectroscopy investigation of nanostructured nickel-zinc ferrite obtained by mechanochemical synthesis[J]. Materials Research Bulletin, 2015, 63, 239- 247.
doi: 10.1016/j.materresbull.2014.12.005
20
WU H Q , ZHANG N , MAO L , et al. Controlled synthesis and magnetic properties of monodisperse Ni1-xZnxFe2O4/MWCNT nanocomposites via microwave-assisted polyol process[J]. Journal of Alloys and Compounds, 2013, 554, 132- 137.
doi: 10.1016/j.jallcom.2012.11.185
2017, Vol. 45 
), 马瑞廷, 刘瑞萍
