The application relates to the technical field of
inorganic chemistry and catalytic
chemistry, and discloses a
titanium-
silicon molecular sieve, a preparation method and application thereof, wherein the method comprises the following steps: (1) mixing a
silicon source, an alkaline template agent, a
titanium source and water to obtain a
titanium-
silicon precursor; (2) mixing the titanium-silicon precursor with an organic silicon compound shown in formula (I) to obtain a mixture; (3)
microwave heating the mixture to crystallize the mixture, separating a
solid from a
crystallization product, and then
drying and calcining the
solid. In the preparation method, the titanium-silicon precursor is treated by using a specific organic silicon compound, and a
microwave heating synthesis condition is used, so that a titanium-silicon
molecular sieve in which almost all titanium atoms in raw materials are inserted into a
molecular sieve skeleton is prepared, the selectivity and catalytic activity of the titanium-silicon molecular
sieve in a catalytic reaction are improved, and the titanium-silicon molecular
sieve has
high selectivity and high catalytic activity.