Monodisperse core-shell structured magnetic mesoporous aluminosilicate nanospheres with large dendritic mesochannels
mesoporous materials, core-shell structures, aluminosilicates, magnetic property, surface acid
The rational design and precise synthesis of multifunctional hybrid nanostructures with a tailored active core and a large, dendritic, modified mesoporous structured shell can promote catalysis, energy storage, and biological applications. Here, an oil-water biphase stratification coating strategy has been developed to prepare monodisperse magnetic dendritic mesoporous silica core-shell structured nano- spheres. These sophisticated Fe3O4@SiO2@dendritic-mSiO2 nanospheres feature large dendritic open pores (2.7 and 10.3 nm). Significantly, the silica shells can be converted into dendritic mesoporous aluminosilicate frameworks with unchanged porosity, a Si/Al molar ratio of 14, and remarkably strong acidic sites, through a post-synthesis approach. In addition, the resultant magnetic dendritic mesoporous aluminosilicate nanospheres exhibit outstanding properties and promising application in phosphate removal from wastewater.
Tsinghua University Press
Jianping Yang,Dengke Shen,Yong Wei,Wei Li,Fan Zhang,Biao Kong,Shaohua Zhang,Wei Teng,Jianwei Fan,Weixian Zhang,Shixue Dou,Dongyuan Zhao, Monodisperse core-shell structured magnetic mesoporous aluminosilicate nanospheres with large dendritic mesochannels. NanoRes.2015, 8(8): 2503–2514