Issue 12, 2014

A novel strategy to fabricate multifunctional Fe3O4@C@TiO2 yolk–shell structures as magnetically recyclable photocatalysts

Abstract

Using poly(acrylic acid) (PAA) as a template, a novel Fe3O4@C@TiO2 yolk–shell structure derived from heat treatment on Fe2O3@PAA@TiO2 core–shell structures is constructed, where the interior void volume and shell thickness are readily tuned. In this method, the PAA shell between the original spherical α-Fe2O3 nanoparticle (NP) core and the outer TiO2 shell replaces the common SiO2 template leaving out the tedious treatment procedure of the template. After calcination, the α-Fe2O3 core was reduced to the Fe3O4 core providing the NPs with magnetic properties and the middle carbon coating around the magnetic core could avoid the occurrence of photodissolution. Moreover, the obtained Fe3O4@C@TiO2 yolk–shell nanocomposites (NCs) exhibit fine photocatalytic activity for the photodegradation of organic contaminants in waste water.

Graphical abstract: A novel strategy to fabricate multifunctional Fe3O4@C@TiO2 yolk–shell structures as magnetically recyclable photocatalysts

Supplementary files

Article information

Article type
Paper
Submitted
11 Jan 2014
Accepted
01 Apr 2014
First published
02 Apr 2014

Nanoscale, 2014,6, 6603-6608

A novel strategy to fabricate multifunctional Fe3O4@C@TiO2 yolk–shell structures as magnetically recyclable photocatalysts

L. Chen, L. Li, T. Wang, L. Zhang, S. Xing, C. Wang and Z. Su, Nanoscale, 2014, 6, 6603 DOI: 10.1039/C4NR00175C

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