A simple method to prepare titania nanomaterials of core-shell structure, hollow nanospheres and mesoporous nanoparticles

2009 ◽  
Vol 52 (9) ◽  
pp. 1498-1503 ◽  
Author(s):  
Hui Zhang ◽  
DeQian Li ◽  
GaoSong Shao ◽  
ZhongYong Yuan
Keyword(s):  
Shell Structure ◽  
Core Shell ◽  
Hollow Nanospheres ◽  
Simple Method ◽  
Mesoporous Nanoparticles ◽  
Core Shell Structure

Preparation of carbon fiber/ZnO core-shell structure by a simple method

2009 ◽  
Vol 4 (4) ◽  
pp. 505-508 ◽  
Author(s):  
Kai Du ◽  
Rong-hui Wei ◽  
Qing-dong Chen ◽  
Jing-han You ◽  
Hai-bin Yang
Keyword(s):  
Carbon Fiber ◽  
Shell Structure ◽  
Core Shell ◽  
Simple Method ◽  
Core Shell Structure

Stabilization of silica-coated silver iodide nanoparticles by ethanol-washing

2016 ◽  
Vol 45 (2) ◽  
pp. 99-105
Author(s):  
Yoshio Kobayashi ◽  
Tetsuya Ayame ◽  
Kyosuke Shibuya ◽  
Tomohiko Nakagawa ◽  
Yohsuke Kubota ◽  
...  
Keyword(s):  
Shell Structure ◽  
Silver Iodide ◽  
Colloid Solution ◽  
Core Shell ◽  
Simple Method ◽  
Content Type ◽  
X Ray ◽  
The Core ◽  
Core Shell Structure ◽  
Ethanol Washing

Purpose – This paper aims to propose a simple method for stabilizing silica-coated silver iodide (AgI/SiO2) core-shell particles, of which a colloid solution functions as an X-ray contrast agent. Design/methodology/approach – A colloid solution of AgI nanoparticles was prepared by mixing silver perchlorate and potassium iodide in water. The AgI/SiO2 nanoparticles were fabricated by a sol-gel method using NaOH, H2O and tetraethylorthosilicate in ethanol in the presence of AgI nanoparticles surface-modified with 3-mercaptopropyltrimethoxysilane. Findings – The silica shells of AgI/SiO2 particles were dissolved near the AgI nanoparticle surface, when they were washed by a process composed of centrifugation, removal of supernatant with decantation, addition of water as a washing solution and a shake with a vortex mixer. In contrast, the shells were not damaged by using ethanol as the washing solution, i.e. ethanol-washing. An X-ray photoelectron spectroscopy spectrum of the silica was changed after the ethanol-washing, which indicated that the ethanol-washing had an effect on the chemical bonds in silica. The effect also acted on the silica shells of AgI/SiO2 particles, which did not damage the core-shell structure, i.e. controlled the dissolution of shell. Originality/value – The paper demonstrates that the ethanol-washing is quite useful for stabilizing the core-shell structure composed of the silica shells.

Preparation and Optical Properties of Carbon Fiber/ZnO Core-Shell Structure by a Simple Method

2012 ◽  
Vol 557-559 ◽  
pp. 236-239
Author(s):  
Rong Hui Wei ◽  
Kai Du ◽  
Xiao Yang Gong ◽  
Qing Dong Chen ◽  
Hai Bin Yang
Keyword(s):  
Carbon Fiber ◽  
Shell Structure ◽  
Oxygen Vacancies ◽  
Green Emission ◽  
Precipitation Process ◽  
Core Shell ◽  
Photoluminescence Properties ◽  
Simple Method ◽  
Green Emission Peak ◽  
Core Shell Structure

A core-shell structure material, carbon fiber/ZnO was prepared by a surface modification precipitation process in aqueous solution. The structure, absorptive properties and photoluminescence properties of the composites were investigated. Results showed that the energy bandgap of samples calculated from the absorptive spectra was about 3.30eV. The green emission peak of the samples was ascribed to the oxygen vacancies.

Magnetic, long persistent luminescent and mesoporous nanoparticles as trackable transport drug carriers

2015 ◽  
Vol 3 (4) ◽  
pp. 635-641 ◽  
Author(s):  
Junpeng Shi ◽  
Haixia Fu ◽  
Xia Sun ◽  
Jiangshan Shen ◽  
Hongwu Zhang
Keyword(s):  
Shell Structure ◽  
Luminescent Properties ◽  
Drug Carriers ◽  
Template Method ◽  
Core Shell ◽  
Mesoporous Nanoparticles ◽  
Core Shell Structure

In this paper, novel trackable drug carriers with a core/shell structure featured by mesoporous, magnetic and long persistent luminescent properties have been synthesized via a facile template method.

Subcritical Water Treatment: A Simple Method to Prepare Porous Glass with a Core-Shell Structure

2007 ◽  
Vol 91 (1) ◽  
pp. 103-109 ◽  
Author(s):  
Yiwen Sun ◽  
Yujun Wang ◽  
Yangcheng Lu ◽  
Tao Wang ◽  
Guangsheng Luo
Keyword(s):  
Water Treatment ◽  
Porous Glass ◽  
Shell Structure ◽  
Subcritical Water ◽  
Core Shell ◽  
Simple Method ◽  
Core Shell Structure

Electrical Conductivity of Ni-YSZ Anode for SOFCs According to the Ni Powder Size Variations in Core-shell Structure

2015 ◽  
Vol 53 (4) ◽  
pp. 287-293
Author(s):  
Byung-Hyun Choi ◽  
Young Jin Kang ◽  
Sung-Hun Jung ◽  
Yong-Tae An ◽  
Mi-Jung Ji
Keyword(s):  
Electrical Conductivity ◽  
Shell Structure ◽  
Core Shell ◽  
Powder Size ◽  
Ni Powder ◽  
Core Shell Structure

Preparation of Porous Core/Shell Structure Fe$lt;inf$gt;2$lt;/inf$gt;O$lt;inf$gt;3$lt;/inf$gt;/Al Nanothermite Membrane by Template Method

2015 ◽  
Vol 30 (6) ◽  
pp. 610 ◽  
Author(s):  
ZHENG Guo-Qiang ◽  
ZHANG Wen-Chao ◽  
XU Xing ◽  
SHEN Rui-Qi ◽  
DENG Ji-Ping ◽  
...  
Keyword(s):  
Shell Structure ◽  
Template Method ◽  
Core Shell ◽  
Porous Core ◽  
Core Shell Structure

Functional properties of BaTiO3–Ni0.5Zn0.5Fe2O4 magnetoelectric ceramics prepared from powders with core-shell structure

2010 ◽  
Vol 107 (10) ◽  
pp. 104106 ◽  
Author(s):  
L. P. Curecheriu ◽  
M. T. Buscaglia ◽  
V. Buscaglia ◽  
L. Mitoseriu ◽  
P. Postolache ◽  
...  
Keyword(s):  
Functional Properties ◽  
Shell Structure ◽  
Core Shell ◽  
Core Shell Structure
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