TY - JOUR
T1 - Orthogonal optimization design for preparation of Fe 3 O 4 nanoparticles via chemical coprecipitation
AU - Meng, Haining
AU - Zhang, Zhenzhong
AU - Zhao, Fangxia
AU - Qiu, Tai
AU - Yang, Jingdong
PY - 2013/9/1
Y1 - 2013/9/1
N2 - Fe 3 O 4 nanoparticles ranging from 8.9 to 12.2 nm were prepared by chemical coprecipitation based on L 16 (4 5 ) orthogonal experiments. The effects of five process parameters (pH, Fe 2+ /Fe 3+ ratio, reaction temperature, ferric salt concentration, and crystallization temperature) on particle size and specific saturation magnetization of Fe 3 O 4 nanoparticles were investigated. The micro-morphology, crystal structure, specific saturation magnetization, and surface properties were characterized by transmission electron microscopy (TEM), selected area electron diffraction (SAED), X-ray diffraction (XRD), vibration magnetometer (VSM), and Fourier infrared (FT-IR). The results indicate that Fe 2+ /Fe 3+ ratio and pH are the main factors affecting particle size and specific saturation magnetization, respectively. The Fe 3 O 4 nanoparticles are mostly spherical powders with a narrow size distribution and a high purity. The Fe 3 O 4 nanoparticles can achieve high dispersion performance and suspension stability by in situ dispersion with double adsorption layers.
AB - Fe 3 O 4 nanoparticles ranging from 8.9 to 12.2 nm were prepared by chemical coprecipitation based on L 16 (4 5 ) orthogonal experiments. The effects of five process parameters (pH, Fe 2+ /Fe 3+ ratio, reaction temperature, ferric salt concentration, and crystallization temperature) on particle size and specific saturation magnetization of Fe 3 O 4 nanoparticles were investigated. The micro-morphology, crystal structure, specific saturation magnetization, and surface properties were characterized by transmission electron microscopy (TEM), selected area electron diffraction (SAED), X-ray diffraction (XRD), vibration magnetometer (VSM), and Fourier infrared (FT-IR). The results indicate that Fe 2+ /Fe 3+ ratio and pH are the main factors affecting particle size and specific saturation magnetization, respectively. The Fe 3 O 4 nanoparticles are mostly spherical powders with a narrow size distribution and a high purity. The Fe 3 O 4 nanoparticles can achieve high dispersion performance and suspension stability by in situ dispersion with double adsorption layers.
KW - In situ dispersion
KW - Orthogonal experiment
KW - Process parameters
UR - http://www.scopus.com/inward/record.url?scp=84879692969&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2013.05.041
DO - 10.1016/j.apsusc.2013.05.041
M3 - 文章
AN - SCOPUS:84879692969
SN - 0169-4332
VL - 280
SP - 679
EP - 685
JO - Applied Surface Science
JF - Applied Surface Science
ER -