In this paper sodium hexatitanate (Na2Ti6O13) belts were prepared by two specific synthesis process such as sol-gel and solid state reaction methods. The structural, morphological and optical characteristics were performed by XRD, SEM and UV-vis absorption spectroscopy. The crystallite size and unit cell volume of sodium hexatitanates (Na2Ti6O13) synthesized by sol-gel method have less than same obtained by solid state reaction method. The energy band gap (3.18eV) of Na2Ti6O13 prepared by sol-gel method was obtained larger than (3.07eV), prepared by solid state reaction method. Beyond it, Na2Ti6O13 was tested as photocatalyst on the degradation of methyl orange under visible light and obtained better activity for the sample synthesized by sol-gel reaction route. From the observed data we have concluded that the sodium hexatitanate (Na2Ti6O13) whiskers synthesized by sol-gel method showed superior properties than the solid state reaction method.
