“…In recent years, to produce these materials have been used different synthesis process such as solvothermal [2], sol-gel [2,5,6,[8][9][10][11], , hydrothermal method [6,8,9], coprecipitation [8,9], solid state reaction method [5,6,9,10], self-propagating combustion synthesis [5], alkoxide method [5,10], , pulsed laser deposition [5,10], microwave-assisted [5,9,10], sonochemical synthesis [2,5,10]. Among these production methods, hydrothermal synthesis can be preferred due to its advantages such low temperature, control of particle size, without any calcination or milling step and not purity phase [12].…”