Acidic Properties and Catalytic Activity of Titanium Sulfate Supported on TiO 2

for environmentally benign heterogeneouscatalysts has driven the worldwide research of new materialsas a substitute for current liquid acids and halogen-basedsolid acids. Among them sulfated oxides, such as sulfatedzirconia, titania, and iron oxide exhibiting high thermo-stability, superacidic property, and high catalytic activity,have evoked increasing interest.