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Nano Research

Article Title

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

Authors

Jianping Yang, College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW 2500, Australia
Dengke Shen, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China
Yong Wei, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China
Wei Li, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China
Fan Zhang, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China
Biao Kong, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China
Shaohua Zhang, Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW 2500, Australia
Wei Teng, College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China
Jianwei Fan, College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China
Weixian Zhang, College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resources Reuse, Tongji University, Shanghai 200092, China
Shixue Dou, Institute for Superconducting & Electronic Materials, Australian Institute of Innovative Materials, University of Wollongong, Innovation Campus, Squires Way, North Wollongong, NSW 2500, Australia
Dongyuan Zhao, Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Laboratory of Advanced Materials, Fudan University, Shanghai 200433, China

Keywords

mesoporous materials, core-shell structures, aluminosilicates, magnetic property, surface acid

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 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.

Graphical Abstract

Publisher

Tsinghua University Press

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