title: Preparation of nano-sized magnetic particles from spent pickling liquors by ultrasonic-assisted chemical co-precipitation.
abstract: The aim of this study is to develop a new method for the preparation of high-value, environmentally friendly products from spent pickling liquors. An ultrasound treatment was introduced into a chemical co-precipitation process to control the size of the particles produced. The particles were characterized by X-ray powder diffraction and transmission electron microscopy. The magnetic parameter was measured with a magnetic property measurement system. The product consisted of ferrous ferrite (Fe(3)O(4)) nano-sized cubic particles with a high level of crystallinity that exhibited super-paramagnetism.
authors.affiliation: Faculty of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, PR China. renytang@163.com
authors.forename: Bing
authors.initials: B
authors.lastname: Tang
authors.forename: Liangjun
authors.initials: L
authors.lastname: Yuan
authors.forename: Taihong
authors.initials: T
authors.lastname: Shi
authors.forename: Linfeng
authors.initials: L
authors.lastname: Yu
authors.forename: Youchun
authors.initials: Y
authors.lastname: Zhu