原位限域合成介孔碳负载四氧化三铁纳米颗粒

摘要

Mesoporous carbon with monolithic structures were prepared using abandoned crab shells as a template.And then Fe3 O4 nanoparticles inside those monolithic mesopores were synthesized by the confined in-situ synthetic strategy.The properties and structure of Fe3O4 nanoparticles on nesoporous narbon were characterized by scanning electronic microscopy ( SEM ) , transmission electron microscope ( TEM ) and X-ray diffraction(XRD).The results show that the pores have a monolithic structure .The diameters of the pores are ca.40~50 nm and their lengths are ca.50 μm to 200 μm.The nanoparticles are proven to be Fe3 O4 with 10 nm in diameter , which have good size monodispersity and are evenly distributed inside the pores .This method features simple and environmental benignity .%利用废弃蟹壳做模板制备的具有均一孔道结构的介孔碳材料做载体，在孔道内限域原位合成四氧化三铁氧化物纳米颗粒。通过扫描电子显微镜（SEM）、透射电子显微镜（TEM）和X射线衍射（XRD）表征了材料的结构和性能。结果表明，孔道结构呈整体式结构，孔直径在40～50 nm，长50～200μm。纳米颗粒为四氧化三铁，粒径在10 nm左右，尺寸单分散性好，可均匀分散在介孔孔道内。该方法工艺路线简单，绿色环保。