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

Jianping Yang, Dengke Shen, Yong Wei, Wei Li, Fan Zhang, Biao Kong, Shaohua Zhang, Wei Teng, Jianwei Fan, Weixian Zhang, Shi Xue Dou, Dongyuan Zhao

Research output: Contribution to journalArticleResearchpeer-review

69 Citations (Scopus)

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. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)2503-2514
Number of pages12
JournalNano Research
Volume8
Issue number8
DOIs
Publication statusPublished - Aug 2015
Externally publishedYes

Keywords

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

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