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Published in: Journal of Sol-Gel Science and Technology 2/2019

07-03-2019 | Original Paper: Nano-structured materials (particles, fibers, colloids, composites, etc.)

Synthesis and photocatalytic performance of a novel hollow network Fe3O4/SiO2/meso-TiO2 (FSmT) composite microspheres

Authors: Qun-Yan Li, Haiwei Sun, Shibing Sun, Jun-Guo Liu, Su-Ping Cui, Zuo-Ren Nie

Published in: Journal of Sol-Gel Science and Technology | Issue 2/2019

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Abstract

A novel hollow network magnetic Fe3O4/SiO2/meso-TiO2 (FSmT) composite microsphere photocatalyst, with network Fe3O4 nanorods as a magnetic layer, a dense SiO2 layer as an electronic barrier, and a mesoporous TiO2 as the active layer, was synthesized by sol–gel and hydrothermal process. The as-synthesized FSmT microspheres possess a high specific surface area (122 m2/g), a large mesoporous size (diameter = 5.47 nm), and pore volume (0.27 cm3/g). Further, the photocatalytic activity of the FSmT microspheres for methyl orange degradation was demonstrated and the degradation rate of methyl orange could reach up to 93.5% after 1 h under UV light. The good photocatalytic activity was attributed to the hollow network and mesoporous composite structures. The FSmT microspheres could be separated conveniently and well redispersed for further reuse because of their excellent magnetic property (Ms = 11.4 emu/g).

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Metadata
Title
Synthesis and photocatalytic performance of a novel hollow network Fe3O4/SiO2/meso-TiO2 (FSmT) composite microspheres
Authors
Qun-Yan Li
Haiwei Sun
Shibing Sun
Jun-Guo Liu
Su-Ping Cui
Zuo-Ren Nie
Publication date
07-03-2019
Publisher
Springer US
Published in
Journal of Sol-Gel Science and Technology / Issue 2/2019
Print ISSN: 0928-0707
Electronic ISSN: 1573-4846
DOI
https://doi.org/10.1007/s10971-019-04942-3

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