Solvothermal fabrication of hollow porous magnetite particles

摘要：

Hollow porous magnetite spheres were synthesized by a simple solvothermal route with controllable size ranging from 80 nm to 400 nm. The size,shell thickness and the interior space of the resulted crystals were controlled by reaction time,molar ratio of ammonium bicarbonate (NH4HCO3) and ammonium acetate (NH4Ac). The structure,morphology,size,and magnetic properties of the hollow porous magnetite spheres were investigated. The characterizations of Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) images showed that ratio of NH4HCO3 and NH4AC,and molar concentration of ammonium played an important role in the morphology,size and magnetic property of the porous hollow sphere. Meanwhile,reaction time strongly influenced in the porous structure and interior space of hollow porous magnetite spheres.

作者: Quanguo He Zhaohui Wu

作者单位: Green Packaging and Biological Nanotechnology Laboratory,Hunan University of Technology,Zhuzhou 412008,China

会议类型: 国际会议

会议名称: 2011 International Conference on Environmental Biotechnology and Materials Engineering(2011年环境生物技术与材料工程国际会议)

会议地点: 哈尔滨

会议语种:英文

页码: 1995-1999

在线出版日期: 2011-03-26（万方平台首次上网日期，不代表论文的发表时间）