Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Journal:   JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)   winter 2019 , Volume 12 , Number 4 #f00656; Page(s) 105 To 112.
 
Paper: 

Investigation of magnetic properties and photocatalytic performance of Fe3O4 nano particles after coating with ZnO and TiO2

 
 
Author(s):  GHANBARNEZHAD SOLMAZ, NEMATI ALI*, BAGHSHAHI SAEED, Mahmoodi Mahboubeh
 
* DEPARTMENT OF MATERIALS SCIENCE AND ENGINEERING, SHARIF UNIVERSITY OF TECHNOLOGY
 
Abstract: 
In this research, magnetite NPs via sol/gel method was coated with ZnO and TiO2. Phases, microstructures, and magnetic properties of binary and ternary core/shell nanoparticles were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM) and vibrational magnetometer (VSM). Photocatalytic activities in methylene blue degradation under sunlight irradiation for 120 min were recorded using UV/Vis spectrophotometer, changes were studied using the photoluminescence spectrum (PL), and the specific surface areas were obtained by the nitrogen adsorption/desorption apparatus (BET). The results showed that 10 mg/ml core/ shell nanoparticles during 120 min under sunlight radiation could degrade >90% of methylene blue molecules. However, the increase in the number of shells causes the change in the type of semiconductors from direct to indirect; following that heterogeneous interface reduces the photocatalytic efficiency.
 
Keyword(s): Nanoparticles,Photocatalyst,semiconductor,Binary core/shell,Ternary core/shell
 
References: 
  • ندارد
 
  Persian Abstract Yearly Visit 93
 
Latest on Blog
Enter SID Blog