Title :
Investigation of TiO2-SiO2-Fe3O4 core-shell nanoparticle properties with different functional layer thickness
Author :
Junyang Li ; Chenyang Xue ; Qiang Zhang ; Libo Gao ; Zhenyin Hai ; Hongyan Xu ; Dong Sun
Author_Institution :
Nat. Key Lab. for Electron. Meas. Technol., North Univ. of China, Taiyuan, China
Abstract :
This paper investigates different properties of the TiO2-SiO2-Fe3O4 core-shell nanoparticles encapsulated for 1 times, 2 times, 3 times (which are named as TSF1, TSF2 and TSF3 in this paper). The TSF nanoparticles were obtained through carbon reduction method and sol-gel method. The properties of the TSF1, TSF2 and TSF3 were characterized by Transmission Electron Microscope (TEM), X-ray Diffraction (XRD), Vibratory Sample Magnetometer (VSM) and BET surface areas. The results show that the TSF2 exhibited better property than the others. The relationships between the irradiation time and decoloration rate of the TSF1, TSF2 and TSF3 indicate that the TSF2 has significant efficiency in decolorating the methyl orange under ultraviolet light.
Keywords :
X-ray diffraction; iron compounds; nanofabrication; nanoparticles; silicon compounds; sol-gel processing; titanium compounds; transmission electron microscopy; ultraviolet radiation effects; TEM; TiO2-SiO2-Fe3O4; X-ray diffraction; XRD; carbon reduction method; core-shell nanoparticle properties; decoloration rate; functional layer thickness; irradiation time; methyl orange; sol-gel method; transmission electron microscopy; ultraviolet light; vibratory sample magnetometer; Chemicals; Degradation; Magnetic cores; Magnetic properties; Magnetometers; Nanoparticles; X-ray scattering; carbon reduction method; encapsulated times; iron oxide nanoparticles; magnetic carrier;
Conference_Titel :
Nanotechnology (IEEE-NANO), 2013 13th IEEE Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-0675-8
DOI :
10.1109/NANO.2013.6720937
