Synthesis of highly monodispersed teardrop-shaped core–shell SiO2/TiO2 nanoparticles and their photocatalytic activities

2015 ◽  
Vol 351 ◽  
pp. 320-326 ◽  
Author(s):  
Lihong Wu ◽  
Yifeng Zhou ◽  
Wangyan Nie ◽  
Linyong Song ◽  
Pengpeng Chen
Keyword(s):  
Tio2 Nanoparticles ◽  
Core Shell ◽  
Photocatalytic Activities

scholarly journals Green synthesis of mesoporous anatase TiO2 nanoparticles and their photocatalytic activities

RSC Advances ◽  
2017 ◽  
Vol 7 (76) ◽  
pp. 48083-48094 ◽  
Author(s):  
Sunderishwary S. Muniandy ◽  
Noor Haida Mohd Kaus ◽  
Zhong-Tao Jiang ◽  
Mohammednoor Altarawneh ◽  
Hooi Ling Lee
Keyword(s):  
Low Temperature ◽  
Green Chemistry ◽  
Visible Light ◽  
Green Synthesis ◽  
Tio2 Nanoparticles ◽  
Soluble Starch ◽  
Anatase Tio2 ◽  
Photocatalytic Activities ◽  
Visible Light Active

Mesoporous anatase TiO2 nanoparticles are produced by employing a facile green chemistry approach at low temperature with soluble starch as the template in this work. The obtained TiO2 photocatalyst is visible-light active with good photocatalytic activities.

Enhanced Photocatalytic Activities of Core–Shell Au–Titanate Nanoparticles

2007 ◽  
Vol 36 (1) ◽  
pp. 128-129 ◽  
Author(s):  
Tomokatsu Hayakawa ◽  
Mamiko Hori ◽  
C. Pagnoux ◽  
J. F. Baumard ◽  
Masayuki Nogami
Keyword(s):  
Core Shell ◽  
Photocatalytic Activities

Core-Shell SiO2/Ag Composite Spheres Prepared by Electrical Exploding Wire Plasma Technique: Synthesis and Characterization

2021 ◽  
Vol 19 (10) ◽  
pp. 82-88
Author(s):  
Duaa A. Uamran ◽  
Qasim Hassan Ubaid ◽  
Hammad R. Humud
Keyword(s):  
Laser Pulse ◽  
Laser Pulses ◽  
Structural Features ◽  
Optical Absorption Spectroscopy ◽  
Core Shell ◽  
X Ray Diffraction ◽  
Shell Nanoparticles ◽  
X Ray ◽  
Photocatalytic Activities ◽  
Core Shell Nanoparticles

Core-shell nanoparticles (SiO2/Ag) were manufactured by using a two-step process: Electric detonation of Ag. Wire in colloidal solution particles then by using laser pulses, nanoparticles are released. The structural features of these nanoparticles were checked by using X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX). The (XRD) study showed the progressive coverage of SiO2/Ag by nanoparticles according to the energies of the laser pulse. Measurements of morphology and EDX confirmed the Core/shell structure with particle size at the nano level. It confirmed that preliminary analysis consists of a SiO2 core and an Ag shell from FESEM. The surface of the microscopic balls (SiO2) has been covered completely and homogeneously with Ag nanoparticles, Moreover, Ultraviolet-Visible, and by optical absorption spectroscopy, the Nanoparticles with core crust SiO2/Ag showed excellent photocatalytic activities at various concentrations and laser pulse energy.

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