Ultrasonic-induced nanocomposites with anatase@amorphous TiO2 core–shell structure and their photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 67444-67448 ◽  
Author(s):  
Chenyao Fan ◽  
Xinxin Fu ◽  
Lin Shi ◽  
Siqi Yu ◽  
Guodong Qian ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ultrasonic Irradiation ◽  
Shell Structure ◽  
Core Shell ◽  
Effects Of Disorder ◽  
Amorphous Tio2 ◽  
Core Shell Structure ◽  
Phase Proportion

Anatase@amorphous TiO2 core–shell structure nanocomposites were obtained through ultrasonic irradiation on hydrothermally synthesized anatase nanocrystals. The optimized research of the phase proportion revealed the effects of disorder phase.

Synthesis and photocatalytic activity of N-K2Ti4O9/UiO-66 composites

RSC Advances ◽  
2015 ◽  
Vol 5 (66) ◽  
pp. 53198-53206 ◽  
Author(s):  
Sunfeng Li ◽  
Xing Wang ◽  
Qi Chen ◽  
Qinqin He ◽  
Mengmeng Lv ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Shell Structure ◽  
Solvothermal Method ◽  
Core Shell ◽  
Core Shell Structure ◽  
Facile Solvothermal Method

N-K2Ti4O9/UiO-66 composites synthesized by a facile solvothermal method possess a hierarchical core–shell structure with UiO-66 forming the shell around the N-K2Ti4O9 core.

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%.

Controlling the Core–Shell Structure of CuS@CdS Heterojunction via Seeded Growth with Tunable Photocatalytic Activity

2018 ◽  
Vol 6 (11) ◽  
pp. 15867-15875 ◽  
Author(s):  
Naixu Li ◽  
Wenlong Fu ◽  
Chen Chen ◽  
Maochang Liu ◽  
Fei Xue ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Shell Structure ◽  
Core Shell ◽  
Seeded Growth ◽  
The Core ◽  
Core Shell Structure

scholarly journals Preparation and Photocatalytic Activity of ZnO/CdS Core/Shell Structure Nanopowders

2014 ◽  
Vol 26 (5) ◽  
pp. 1428-1430 ◽  
Author(s):  
Yan Li ◽  
Shaofeng Zhu ◽  
Wenjie Xie ◽  
Cong Lei ◽  
Jian Zhang
Keyword(s):  
Photocatalytic Activity ◽  
Shell Structure ◽  
Core Shell ◽  
Core Shell Structure

scholarly journals Titanium oxynitride microspheres with the rock-salt structure for use as visible-light photocatalysts

2016 ◽  
Vol 4 (3) ◽  
pp. 869-876 ◽  
Author(s):  
Jung Bo Yoo ◽  
Hyo Jin Yoo ◽  
Hyuk Joon Jung ◽  
Han Sol Kim ◽  
Sora Bang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Rock Salt ◽  
Visible Light Irradiation ◽  
Shell Structure ◽  
Core Shell ◽  
Rock Salt Structure ◽  
The Core ◽  
Salt Structure ◽  
Core Shell Structure

Novel photocatalysts (TiO2@TiO1−xNx) with the core–shell structure, prepared by controlled nitridation of TiO2 microspheres, show photocatalytic activity under visible-light irradiation.

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