Synthesis of magnetic mesoporous titania colloidal crystals through evaporation induced self-assembly in emulsion as effective and recyclable photocatalystsElectronic supplementary information (ESI) available. See DOI: 10.1039/c5cp05005g
This study illustrates the directed self-assembly of mesoporous TiO 2 with magnetic properties due to its colloidal crystal structure with Fe 3 O 4 . The Fe 3 O 4 nanoparticles were synthesized using co-precipitation techniques to a size of 28.2 nm and a magnetic saturation of 66.9 emu g −1 . Meanwh...
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Main Authors | , , , , , , , |
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Format | Journal Article |
Language | English |
Published |
14.10.2015
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Online Access | Get full text |
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Summary: | This study illustrates the directed self-assembly of mesoporous TiO
2
with magnetic properties due to its colloidal crystal structure with Fe
3
O
4
. The Fe
3
O
4
nanoparticles were synthesized using co-precipitation techniques to a size of 28.2 nm and a magnetic saturation of 66.9 emu g
−1
. Meanwhile, mesoporous titania nanoparticles (MTNs) with a particle diameter of 373 nm, a specific surface area of 236.3 m
2
g
−1
, and a pore size of 2.8 nm were prepared by controlling the rate of hydrolysis. Magnetic colloidal crystals (a diameter of 10.2 μm) were formed by the aggregation of Fe
3
O
4
and MTNs caused by the interface phenomena during solvent evaporation in emulsion. Even the anatase octahedrite produced from the colloidal crystal after a hydrothermal reaction retained a magnetic saturation of 2.8 emu g
−1
. This study also investigates the photodegradation activity of our synthesized material as a photocatalyst, while utilizing its capability for magnetic separation to prove its usefulness in catalyst recycling.
This study illustrates the directed self-assembly of mesoporous TiO
2
with magnetic properties due to its colloidal crystal structure with Fe
3
O
4
. |
---|---|
Bibliography: | 10.1039/c5cp05005g Electronic supplementary information (ESI) available. See DOI |
ISSN: | 1463-9076 1463-9084 |
DOI: | 10.1039/c5cp05005g |