Ultralight Mesoporous Magnetic Frameworks by Interfacial Assembly of Prussian Blue Nanocubes

Biao Kong, Jing Tang, Zhangxiong Wu, Jing Wei, Hao Wu, Yongcheng Wang, Gengfeng Zheng, Dongyuan Zhao

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

A facile approach for the synthesis of ultralight iron oxide hierarchical structures with tailorable macro- and mesoporosity is reported. This method entails the growth of porous Prussian blue (PB) single crystals on the surface of a polyurethane sponge, followed by in situ thermal conversion of PB crystals into three-dimensional mesoporous iron oxide (3DMI) architectures. Compared to previously reported ultralight materials, the 3DMI architectures possess hierarchical macro- and mesoporous frameworks with multiple advantageous features, including high surface area (ca. 117 m 2 g -1 ) and ultralow density (6-11 mg cm -3 ). Furthermore, they can be synthesized on a kilogram scale. More importantly, these 3DMI structures exhibit superparamagnetism and tunable hydrophilicity/hydrophobicity, thus allowing for efficient multiphase interfacial adsorption and fast multiphase catalysis.

Original languageEnglish
Pages (from-to)2888-2892
Number of pages5
JournalAngewandte Chemie-International Edition
Volume53
Issue number11
DOIs
Publication statusPublished - 2014

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