title: Analyses of factors affecting nickel ferrite nanoparticles synthesis in ultrasound-assisted aqueous solution ball milling.
abstract: Ball milling experiments were conducted with and without ultrasound wave assistance in deionized water using NiCO3·2Ni(OH)2·4H2O as raw materials. In the reaction process of NiFe2O4 prepared by ultrasound-assisted aqueous solution ball milling, some influencing factors including raw materials, ultrasonic frequency, ball to powder ratio and liquid level were changed. Samples were characterized by X-ray diffraction, fluorescence measurements and electroconductivity detections. The results indicate that more hydroxyl radicals and ions can be generated under the coupling effect of ultrasonic and ball milling. The fluorescence measurements and electroconductivity detections also reflect the reaction speed, allowing for optimal parameters to be determined.
authors.affiliation: College of Materials Science and Engineering, Hunan University, Changsha 410082, PR China.
authors.forename: Zhuang
authors.initials: Z
authors.lastname: Yuan
authors.affiliation: College of Materials Science and Engineering, Hunan University, Changsha 410082, PR China.
authors.forename: Zhen-hua
authors.initials: ZH
authors.lastname: Chen
authors.affiliation: College of Materials Science and Engineering, Hunan University, Changsha 410082, PR China. Electronic address: ma97chen@hotmail.com.
authors.forename: Ding
authors.initials: D
authors.lastname: Chen
authors.affiliation: Georgia Tech Research Institute, Georgia Institute of Technology, Atlanta, GA 30332, USA; School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
authors.forename: Zhi-tao
authors.initials: ZT
authors.lastname: Kang
keywords: Ball milling; Hydroxyl radicals; Ions; Nickel ferrite; Ultrasonic wave