Synthesis and characterization of CaCO3@SiO2 core–shell nanoparticles
作者： Shicheng Zhang , Xingguo Li
DOI: 10.1016/J.POWTEC.2004.02.018
关键词: Transmission electron microscopy 、 Hydrophobic silica 、 Thermogravimetry 、 Composite number 、 Mineralogy 、 Nanoparticle 、 Calcite 、 Materials science 、 Precipitation (chemistry) 、 Thermal stability 、 Chemical engineering
摘要: Abstract This paper reports on a new type of composite nanoparticle consisting calcite (CaCO 3 ) core and silica (SiO 2 shell. The cubic core–shell particles were created using surface precipitation procedure as seeds which layer was grown. Moreover, the nanoparticles can be dissolved leaving shells. characterizations shells made by TEM, BET, XRD, IR, XRF, TGA. results show that continuously coated CaCO with thickness about 5 nm. After shells, thermal stability decreases for its reaction silica. shape size pores similar to cores.
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