چكيده به لاتين
Abestract
In this research, in the first stage, synthesis of nickel ferrite nanoparticles (NiFe2O4) with green, low cost and fast procedure was considered. For this purpose, solvent free self-combustion with microwave assisted technique were used that is less reported and has the expected properties. In this method, fuels of urea, glycine and acetamide and the oxidizer of ammonium nitrate with different molar ratio were used. Also, the effect of time and different microwave powers in the final product were studied. The use of copper oxide in the synthesis of this ferrite was reported for the first time. The advantages of this technique is one-step synthesis without need of calcination, saving time, energy and consumption materials, low cost of raw materials, reproducibility, capability of industrialization, environmental friendly and no need of dangerous and poisonous solvents. This reaction completes at maximum of 30 minutes that is so fast and significant. In the second stage, synthesis of composite nickel ferrite with Cu(BDC) was considered. For this purpose, two methods of microwave and ultrasonic waves were examind. The aim of composite nickel ferrite nanoparticles with metal organic framework was increasing surface area and catalytic properties of nickel ferrite and magnetic metal organic framework. To characterize the products, different techniques of FT-IR, XRD, SEM, VSM, BET and DRS were used. At last, applications of synthesized nickel ferrite nanoparticles and composites as a catalyst for photo degradation of organic dye pigment and adsorption of other pigment were studied and analyzed.
Keyword: nanoparticles nickel ferrite, nanocamposite, NiFe2O4/Cu(BDC), Photo catalysis, Adsorption