Controllable Synthesis, Magnetic Properties, and Enhanced Photocatalytic Activity of Spindlelike Mesoporous α-Fe2O3/ZnO Core–Shell Heterostructures

2012 ◽  
Vol 4 (7) ◽  
pp. 3602-3609 ◽  
Author(s):  
Wei Wu ◽  
Shaofeng Zhang ◽  
Xiangheng Xiao ◽  
Juan Zhou ◽  
Feng Ren ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Photocatalytic Activity ◽  
Core Shell ◽  
Controllable Synthesis

A core–shell structured magnetic Ag/AgBr@Fe2O3 composite with enhanced photocatalytic activity for organic pollutant degradation and antibacterium

RSC Advances ◽  
2015 ◽  
Vol 5 (87) ◽  
pp. 71035-71045 ◽  
Author(s):  
Shuquan Huang ◽  
Yuanguo Xu ◽  
Zhigang Chen ◽  
Meng Xie ◽  
Hui Xu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Photocatalytic Activity ◽  
Organic Pollutant ◽  
Core Shell ◽  
Pollutant Degradation ◽  
Antibacterial Ability ◽  
Highly Efficient ◽  
Organic Pollutant Degradation

A core–shell structured Ag/AgBr@Fe2O3 composite was prepared successfully. It has magnetic properties, highly efficient photocatalytic activity and antibacterial ability.

Controllable Synthesis of Core–Shell Bi@Amorphous Bi2O3 Nanospheres with Tunable Optical and Photocatalytic Activity for NO Removal

2017 ◽  
Vol 56 (37) ◽  
pp. 10251-10258 ◽  
Author(s):  
Meijuan Chen ◽  
Yan Li ◽  
Zhenyu Wang ◽  
Yunxia Gao ◽  
Yu Huang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Core Shell ◽  
Controllable Synthesis ◽  
No Removal

scholarly journals High Photocatalytic Activity of Fe3O4-SiO2-TiO2Functional Particles with Core-Shell Structure

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Chenyang Xue ◽  
Qiang Zhang ◽  
Junyang Li ◽  
Xiujian Chou ◽  
Wendong Zhang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Photocatalytic Activity ◽  
Shell Structure ◽  
Sol Gel ◽  
High Photocatalytic Activity ◽  
Core Shell ◽  
Large Area ◽  
Uniform Size ◽  
Functional Nanoparticles ◽  
Core Shell Structure

This paper describes a novel method of synthesizing Fe3O4-SiO2-TiO2functional nanoparticles with the core-shell structure. The Fe3O4cores which were mainly superparamagnetic were synthesized through a novel carbon reduction method. The Fe3O4cores were then modified with SiO2and finally encapsulated with TiO2by the sol-gel method. The results of characterizations showed that the encapsulated 700 nm Fe3O4-SiO2-TiO2particles have a relatively uniform size distribution, an anatase TiO2shell, and suitable magnetic properties for allowing collection in a magnetic field. These magnetic properties, large area, relative high saturation intensity, and low retentive magnetism make the particles have high dispersibility in suspension and yet enable them to be recovered well using magnetic fields. The functionality of these particles was tested by measuring the photocatalytic activity of the decolouring of methyl orange (MO) and methylene blue (MB) under ultraviolet light and sunlight. The results showed that the introduction of the Fe3O4-SiO2-TiO2functional nanoparticles significantly increased the decoloration rate so that an MO solution at a concentration of 10 mg/L could be decoloured completely within 180 minutes. The particles were recovered after utilization, washing, and drying and the primary recovery ratio was 87.5%.

Controllable synthesis of ferromagnetic–antiferromagnetic core–shell NWs with tunable magnetic properties

Nanoscale ◽  
2017 ◽  
Vol 9 (17) ◽  
pp. 5694-5700 ◽  
Author(s):  
M. Irfan ◽  
C. J. Wang ◽  
U. Khan ◽  
W. J. Li ◽  
X. M. Zhang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Core Shell ◽  
Controllable Synthesis

Morphologically controllable synthesis of core–shell structured Au@Cu2O with enhanced photocatalytic activity

RSC Advances ◽  
2015 ◽  
Vol 5 (88) ◽  
pp. 71559-71564 ◽  
Author(s):  
Guotao Yuan ◽  
Mengna Lu ◽  
Jiuhui Fei ◽  
Jun Guo ◽  
Zuoshan Wang
Keyword(s):  
Photocatalytic Activity ◽  
Core Shell ◽  
Controllable Synthesis ◽  
Solution Route

Core–shell structured Au@Cu2O nanocomposites with different morphologies were prepared by a facile solution route.

Controllable Synthesis of ZnxCd1–xS@ZnO Core–Shell Nanorods with Enhanced Photocatalytic Activity

Langmuir ◽  
2012 ◽  
Vol 28 (28) ◽  
pp. 10558-10564 ◽  
Author(s):  
Shilei Xie ◽  
Xihong Lu ◽  
Teng Zhai ◽  
Jiayong Gan ◽  
Wei Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Core Shell ◽  
Controllable Synthesis

Controllable synthesis of Cu–Ni core–shell nanoparticles and nanowires with tunable magnetic properties

2016 ◽  
Vol 52 (42) ◽  
pp. 6918-6921 ◽  
Author(s):  
Huizhang Guo ◽  
Jiarui Jin ◽  
Yuanzhi Chen ◽  
Xiang Liu ◽  
Deqian Zeng ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Epitaxial Growth ◽  
Core Shell ◽  
Controllable Synthesis ◽  
Shell Nanoparticles ◽  
Core Shell Nanoparticles

The controlled epitaxial growth of Ni shells on Cu cores provided selectively exposed surfaces and morphologies and tunable magnetic properties.

Magnetic Properties of Fe3O4/CoFe2O4 Composite Nanoparticles with Core/Shell Architecture

2020 ◽  
Vol 65 (10) ◽  
pp. 904
Author(s):  
V. O. Zamorskyi ◽  
Ya. M. Lytvynenko ◽  
A. M. Pogorily ◽  
A. I. Tovstolytkin ◽  
S. O. Solopan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spinel Ferrite ◽  
Composite Nanoparticles ◽  
Core Shell ◽  
Cofe2o4 Nanoparticles ◽  
Core Diameter ◽  
The Core ◽  
Shell Particles ◽  
Interface Parameters ◽  
Shell Composite

Magnetic properties of the sets of Fe3O4(core)/CoFe2O4(shell) composite nanoparticles with a core diameter of about 6.3 nm and various shell thicknesses (0, 1.0, and 2.5 nm), as well as the mixtures of Fe3O4 and CoFe2O4 nanoparticles taken in the ratios corresponding to the core/shell material contents in the former case, have been studied. The results of magnetic research showed that the coating of magnetic nanoparticles with a shell gives rise to the appearance of two simultaneous effects: the modification of the core/shell interface parameters and the parameter change in both the nanoparticle’s core and shell themselves. As a result, the core/shell particles acquire new characteristics that are inherent neither to Fe3O4 nor to CoFe2O4. The obtained results open the way to the optimization and adaptation of the parameters of the core/shell spinel-ferrite-based nanoparticles for their application in various technological and biomedical domains.

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