THE STUDY OF MGO NANO-COMPOSITE : SYNTHESIS, CHARACTERIZATION AND PROBABLE APPLICATION

Abstract

In This work we have investigated the role of complexing agents, oxalic acid, in the production of MgO Nano-crystals. It is found that the thermal profiles of the precursors can reveal the effects of crystal growth during thermal annealing. X-ray diffraction confirms that the final products are pure phase and It form in simple Cubic crystalline structure till any foaming agent or surfactant has been mixed, After adding foaming agent Sodium laureth Sulfate (SLS) particles are formed in Orthorhombic crystalline structure and after adding Surfactant Cetrimonium Bromide particles are formed in Monoclinic structure. It is also found that complexing agents can affect the rate of crystal growth. The structures of the oxalic acid as well as the complexation sites play very important roles in the formation of the Nano-crystals. The complexing agents influence the rate of growth which affects the final crystallite size of the materials. Surprisingly, it is also found that oxalic acid act as surfactants inhibiting crystal growth even at a high temperature of 950°C and a long annealing time of 36 h.