BiOBr/TpBD-COF composite material and preparation method thereof

The invention provides a BiOBr/TpBD-COF composite material and a preparation method, the BiOBr/TpBD-COF composite material is obtained by generating BiOBr nanosheets from Cs3Bi2Br9 through a solvothermal method and growing the BiOBr nanosheets on TpBD-COF, the TpBD-COF is of a flower-shaped structure, petals of the TpBD-COF are of a sheet-shaped structure and are uniformly dispersed, the diameter of the BiOBr nanosheets is 63-93 nm, and the thickness of the BiOBr nanosheets is 33-47 nm. The BiOBr/TpBD-COF composite material provided by the invention has obviously improved photocatalytic performance, the rate of hydrogen production by photocatalytic cracking of water reaches 16.17 mmol.g . H , and the BiOBr/TpBD-COF composite material has good cycle stability and is an efficient photocatalyst. 本发明提供一种BiOBr/TpBD-COF复合材料及制备方法，所述BiOBr/TpBD-COF复合材料通过溶剂热法由Cs3Bi2Br9生成BiOBr纳米片，将所述BiOBr纳米片生长于TpBD-COF上得到，所述TpBD-COF呈花状结构，其花瓣呈片状结构且分散均匀，所述BiOBr纳米片直径为63-93nm，厚度为33-47nm。本发明提供的BiOBr/TpBD-COF复合材料具有显著提高的光催化性能，光催化裂解水产