Ti(OBu)4 was chosen as a Ti precursor, which is less reactive than titanium chloride and titanium isopropoxide. Ti(OBu)4 used in the experiment was chemical pure grade. Nitric acid (HNO3) and isopropanol (PrOH) were analytical reagent grade.
Ti(OBu)4 was chosen as a Ti precursor, which isless reactive than titanium chloride and titaniumisopropoxide. Ti(OBu)4 used in the experimentwas chemical pure grade. Nitric acid (HNO3) andisopropanol (PrOH) were analytical reagent grade.