The invention provides a p-type titanium dioxide/n-type tungsten trioxide heterojunction catalyst, a preparation method thereof and application of the p-type titanium dioxide/n-type tungsten trioxideheterojunction catalyst in photochemical synthetic fuel, which relate to the technical field of catalysis. The p-type TiO2/n-type WO3 heterojunction catalyst comprises p-type TiO2 and n-type WO3 loaded on the surface of the p-type TiO2. N-type WO3 is innovatively loaded on the surface of p-type TiO2, and the catalyst has high catalytic efficiency and is especially suitable for photocatalytic synthesis of fuel.

P-type titanium dioxide/n-type tungsten trioxide heterojunction catalyst, preparation method thereof and application of p-type titanium dioxide/n-type tungsten trioxide heterojunction catalyst in photochemical synthetic fuel

Composite catalyst for quadricyclane preparation through photocatalytic norbornadiene isomerization, and preparation method thereof

Disclosed is a composite catalyst used in preparing quadricyclane through photocatalytic isomerization of norbornadiene, the composite catalyst comprising: a solid photocatalyst selected from TiO2, Ti-MCM-41, Ti-SBA-15, ZnO, WO3, Ta2O5 or SrTiO3; an organic photosensitizer loaded on the surface or pores of the solid photocatalyst, the organic photosensitizer being selected from benzophenone, acetophenone, Michler's ketone, tetraethyl Michler's ketone, and diethyl Michler's ketone, the organic photosensitizer accounting for 0.5%-20% of the solid photocatalyst by weight percentage. The catalyst can catalyze a target reaction without the use of a solvent, with a high yield of target product quadricyclane, and the catalyst has stable activity and can be used repeatedly. Also disclosed is a composite catalyst preparation method.

Composite catalyst used in preparing quadricyclane through photocatalytic isomerization of norbornadiene and preparation method thereof

The present invention discloses a composite catalyst for the photocatalytic isomerisation of norbornadiene to prepare quadricyclane, comprising: a solid photocatalyst, selected from the group consisting of TiO 2 , Ti-MCM-41, Ti-SBA-15, ZnO, WO 3 , Ta 2 O 5 or SrTiO 3 ; and an organic photo-sensitizer loaded on the surface or in the channel of said solid photocatalyst, selected from benzophenone, acetophenone, Michler's Ketone, tetraethyl Michler's Ketone, and diethyl Michler's Ketone, where the organic photo-sensitizer is present in the solid photocatalyst in an amount of 0.5% to 20% by weight. The catalyst of the invention can catalyze a target reaction under the condition that no solvent is used, and the yield of the target product quadricyclane is higher. Furthermore, the catalyst of the invention has a stable activity, and it can be recycled. The invention further discloses a process for preparing the composite catalyst.

Jijun Zou

Papers

Composite catalyst for quadricyclane preparation through photocatalytic norbornadiene isomerization, and preparation method thereof

Composite catalyst used in preparing quadricyclane through photocatalytic isomerization of norbornadiene and preparation method thereof

Composite catalyst for the photocatalytic isomerisation of norbornadiene to prepare quadricyclane and process for making the catalyst