摘要
采用磺化聚苯乙烯(PS)微球为模板制备出了以Fe3O4-PANi(聚苯胺)为壳,PS为核的具有核壳结构多功能Fe3O4-PANi/PS复合微球.采用溶剂抽提溶解去除PS核得到Fe3O4-PANi具有导电导磁双功能中空微球.中空微球空腔尺寸大小一致,约为190,nm,壳层厚度约30,nm.通过控制PS模板磺化时间来同步控制微球空腔大小和微球壳层厚度.Fe3O4-PANi/PS复合微球及中空微球具有良好的导电性和超顺磁性.所制备的中空Fe3O4微球及中空Fe3O4-PANi微球对模拟污水浊度去除率分别达到84.2%及86.9%.
Core-shell multifunctional composite spheres consisting of Fe304-polyaniline （PANi） shell and polystyrene （PS） core were fabricated using templates of core-shell-structured sulfonated PS spheres. Dissolved with solvent, PS cores were removed from the core-shell composite spheres and hollow FeaO4-PANi spheres were obtained. The cavity size of the hollow spheres was uniformly approximate to 190 nm and the shell thickness was 30 nm. The cavity size and the shell thickness can be controlled by varying the sulfonation time of the PS templates. The thus prepared spheres present good conductivity and super-paramagnetic. The turbidity removal efficiency of artificial waste water removed by hollow Fe304 and hollow Fe304- PANi spheres were 84.2% and 86.9% respectively.
出处
《天津科技大学学报》
CAS
2012年第6期47-51,共5页
Journal of Tianjin University of Science & Technology
关键词
核壳结构
中空微球
聚苯胺
多功能
core-shell
hollow spheres
polyaniline
multifunction
