NDLI: Hierarchical Fe<sub>3</sub>O<sub>4</sub>@titanate microspheres with superior removal capability for water treatment: in situ growth and structure tailoring via hydrothermal assisted etching

Content Provider	Royal Society of Chemistry (RSC)
Author	Shi, Liang Zhao, Fenghuan Gao, Rongjie Su, Ge Dong, Bohua Liu, Wei Xia, Chenghui Cao, Lixin
Copyright Year	2015
Abstract	Hierarchical flower-like Fe3O4@titanate microspheres with ultrathin nanosheets-assembled shell were fabricated via an effective step-by-step approach. Superparamagnetic Fe3O4 microspheres pre-formed were used as templates for perfect deposition of the following coatings. Silica middle layer was introduced by Stöber method in order to direct the formation of amorphous titania coverage via the hydrolysis of tetraisopropyl titanate. Under alkaline hydrothermal environment, titanate nanosheets crystallized and grew in situ attaching on the surface of Fe3O4 spheres, generating the flower-like microspheres which exhibit excellent adsorption properties. Meanwhile, the hierarchical structures can be tailored by varying the hydrothermal temperature and alkalinity, and the roles of sodium hydroxide and hydrogen peroxide were proposed.
Starting Page	73126
Ending Page	73132
Page Count	7
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	5
Issue Number	89
Journal	RSC Advances
DOI	10.1039/c5ra06362k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Hydrolysis Alkali Hydrogen peroxide Hydrothermal circulation Adsorption ber Sodium hydroxide
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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Hierarchical Fe₃O₄@titanate microspheres with superior removal capability for water treatment: in situ growth and structure tailoring via hydrothermal assisted etching