International Journal of Technology (Nov 2019)
Effect of NaCl Addition on Nano Rosette Tio2 Crystal Growth during Hydrothermal Deposition
Abstract
The effect of NaCl on the crystal growth of nano rosette TiO2 hydrothermally grown on a glass substrate was examined. Nano rosette TiO2 was synthesized through deposition on a glass substrate via hydrothermal reaction at 170°C for 6 hours. The effect of NaCl on nano rosette TiO2 crystal growth during the hydrothermal process was observed through the addition of concentrations of 0, 2.5, 5, and 10% v/v NaCl to the mixture of the precursors. Formation and growth of the crystal were characterized using X-ray diffraction, whereas morphology was examined using a scanning electron microscope. X-ray diffractograms revealed that the crystal belonged to rutile P42/mnm with lattice parameters of a = 4.557(6) Å and c = 2.940(5) Å. Morphology of the reaction product showed that the addition of NaCl inhibited the crystal growth of nano rosette TiO2 with an average rosette petal cross-sectional size 80% smaller than that of the crystal grown with no NaCl addition.
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