The Method Research On Synthesis Of Inorganic Nanomaterials Via Microwave Irradiation

Compared to the conventional heating bath, the advantages of Microwave Irradiation technique not only for faster reaction time, but also cleaner reactions, higher product yields and more green reactions. As a result, Microwave Irradiation technique have been extensive applied in synthesis of organic and inorganic nanomaterials in recent years. The emphasis of this thesis focuses on three sections:(1) Synthesis of silver nanocubes via Microwave Irradiation technique.Silver nanowires were rapidly synthesized by Microwave Irradiation. In case of silver nanowires, AgNO3, ethylene glycol (EG), polyvinylpyrrolidone (PVP) served as salt precursor, reducing agent, polymeric capping agent. And influence factors for the growth of silver nanocrystals in different reaction conditions were also discussed. The as-prepared silver nanowires possessed uniform size, well-defined shape, the yields > 90% after isolation.(2) Synthesis of zinc sulfite and zinc oxide microrods via Microwave Irradiation technique.Zinc sulfite microrods were synthesized by Microwave-Mediated at moderate temperature, where ethylene glycol served as heating medium. ZnSO4?7H2O, ethanediamine (EDA) and PVP served as salt precursor, reducing agent and polymeric capping agent. Different reacation temperature, reaction time, molar ratio were employed to investigate the relationship of photophysical properties for zinc sulfite microrods in different reaction conditions. The as-prepared zinc sulfite microrods present a cross section of uniform hexagon. In addition, annealing ZnSO3 microrods at high temperature results in porous ZnO microrods with pore size between 50-200 nm.(3) Synthesis of cuprous oxide nanostructure via Microwave Irradiation technique.Cu(NO3)2 and EG were adopted as salt precursor and heating medium, hydrazine as reducing agent, PVP as polymeric capping agent. Cuprous oxide nanoparticles were rapidly synthesized. Different reaction temperature, reaction time, the concentration of hydrazine and PVP were also discussed. The as-prepared cuprous oxide nanoparticles presented uniform size and good mondisperse.