Monodisperse core-shell structured magnetic mesoporous aluminosilicate nanospheres with large dendritic mesochannels

Authors

Jianping Yang, University of Wollongong
Dengke Shen, Fudan UniversityFollow
Yong Wei, Fudan University
Wei Li, Fudan University
Fan Zhang, Fudan University
Biao Kong, Fudan University
Shaohua Zhang, University of WollongongFollow
Wei Teng, Tongji University
Jianwei Fan, Tongji University
Weixian Zhang, Tongji University
S X. Dou, University of WollongongFollow
Dongyuan Zhao, Fudan University

RIS ID

101211

Publication Details

Yang, J., Shen, D., Wei, Y., Li, W., Zhang, F., Kong, B., Zhang, S., Teng, W., Fan, J., Zhang, W., Dou, S. & Zhao, D. (2015). Monodisperse core-shell structured magnetic mesoporous aluminosilicate nanospheres with large dendritic mesochannels. Nano Research, 8 (8), 2503-2514.

Abstract

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 nanospheres. 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.